JP2002237955A - Image processing unit, image processing method, composite device and composite system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image processing unit that optimizes an image data quantity exchanged among components of the image processing unit, and attains high processing efficiency for a two-color image forming processing. SOLUTION: The image processing unit is provided with an RGB line out of synchronism correction section 801 that applies correction to a synchronizing deviation, caused among colors of image data to any of a sensor board unit 202 that generates image data by each of a plurality of colors, an image processing processor 204, a memory module 222, and an image data control means 203 and with a black/designated color separation section 802 that converts image data, whose out of synchronism is corrected into black and red image data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus, an image processing method, a multifunction device, and a multifunction system.
The present invention relates to an image processing apparatus, an image processing method, a composite apparatus, and a composite system for reading a color image from a scanner and performing processing for forming a visible image of two colors other than black, such as black and red, on a transfer sheet from a digitized image signal. .

[0002]

2. Description of the Related Art MFPs (copiers, faxes, printers,
As a prior art relating to an image processing apparatus suitable for use in a composite apparatus such as a scanner, for example, Japanese Patent Application Laid-Open No. 8-274 is known.
A technique described in Japanese Patent No. 986 and the like is known. This prior art enables image processing of a read signal, image storage in a memory, parallel operation of a plurality of functions, and optimization of each image processing. Can be executed by

[0003] The MFP is a scanner that reads an image to create a digital signal (image data) and a plurality of image processing units that perform image processing on the image data, for example, shading correction, halftone processing, and scaling. And a configuration for managing transmission of image data transmitted and received between a plurality of image processing units, a memory for storing image data, and a configuration for managing access to the memory. The image data subjected to the image processing is output to a printer to form an image.

In an MFP, the data amount and transmission procedure of image data transmitted and received between components of the MFP and the processing speed of each component affect the time required for image formation. For this reason, there is disclosed a technique for improving the image processing apparatus described in Japanese Patent Application Laid-Open No. 8-274986 and providing an image processing apparatus with higher image processing efficiency. Further, there is disclosed a technique of providing an image processing apparatus that can cope with a change in use of a system or addition of a function by making an image processing unit a programmable configuration.

In one of the operation modes of a digital image processing apparatus, image data of three colors of R (Red), G (Green) and B (Blue) created by reading a color image is converted to black. And red or black and blue image data to form a two-color image of black / red or black / blue. At present, MFP
Some have a function of forming a color image.

[0006]

However, the above-mentioned prior art is not considered to increase the efficiency of image processing for forming a two-color image, and furthermore, the effective use of memory in the MFP and the performance of peripheral units are not considered. There is no solution for the ease of function improvement along with the improvement, the ease of dividing functions as a single scanner or a single printer, and an optimal control configuration has been constructed in terms of effective use of the system. There is a problem that it is not something.

For forming a two-color image, arithmetic processing is performed by simultaneously using R, G, and B image data. On this occasion,
The image data of three colors R, G, and B is a CCD (ChargeCoupledD) dedicated to reading each color of R, G, and B.
device). For this reason,
R image data (R data), G image data (G data), and B image data (B data) that are sequentially input are temporarily stored, and the synchronization deviation of the input of the R data, G data, and B data is corrected. It is necessary to do.

[0008] The above-mentioned process of synchronizing is complicated when the image is further scaled up because the number of lines of image data to be stored (image data read at a time by CCDs connected in a line) changes. Thus, it can be said that there is room for further improvement in the two-color image forming process of the image processing apparatus configured as the conventional MFP.

A first object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a conventional synchronous black-and-white processing which is an additional processing required for forming a two-color image. At least one of the color conversion processes (two colors of black and another color) is optimally arranged in any of the image data input means, the image memory control means, and the image data control control means. Accordingly, an object of the present invention is to provide a two-color image processing apparatus and an image processing method with high processing efficiency in which the amount of image data transmitted and received between the respective components is optimized and the bias of the processing load is reduced.

A second object of the present invention is to correct a synchronization shift which is complicated by scaling an image when a two-color image is formed, and to optimize an arrangement of a scaling process to store an image in a memory. An object of the present invention is to provide a two-color image processing apparatus and an image processing method configured to optimize storage and data transfer amount between a plurality of means.

A third object of the present invention is to provide an image processing apparatus having the above-described configuration, a copying machine using the image processing method,
An object of the present invention is to provide a composite device and a composite system having a plurality of functions such as an AX, a printer, and a scanner.

[0012]

According to the present invention, the above-mentioned first method is provided.
The object of the invention is achieved by configuring the invention according to claims 1 to 9 with the following means.

[0013] In order to solve the above-mentioned problems and to achieve the first object, an image processing apparatus according to the first aspect of the present invention receives a color image and converts the image into three colors of red, green and blue. Image data input means for separating the image data into colors and converting the image data into color image data for each color; image data output means for outputting the image data as a visualized image; and processing of the image data created by the image data input means. A programmable image processing means for executing a plurality of types of image processing, an image data storage unit for storing the image data, and an image memory control means for collectively managing access of the image data to the image data storage unit, Image data control means for collectively managing the transfer of the image data between the respective means, wherein the image data control means is provided for each of a plurality of colors. Synchronizing error correcting means for correcting the synchronizing error occurring between the respective colors of the color image data, and color image data for which the synchronizing error has been corrected by the synchronizing error correcting means is converted into two colors of black and another color different from black A color conversion unit for converting the image data into image data, wherein at least one of the synchronization shift correction unit and the color conversion unit is one of the image data input unit, the image memory control unit, and the image data control unit. Characterized by being provided in any of the above.

According to the first aspect of the present invention, in consideration of a transfer amount of image data and a storage capacity of the image data, at least one of the synchronization shift correction unit and the color conversion unit is configured to execute the image data input operation. Means, the image memory control means, or the image data control means, at least one of the additional processings required when performing two-color image formation is performed by the other than the image processing means. Means, the burden on the image processing means can be reduced, and the efficiency of image processing for forming a two-color image can be increased. It is possible to provide a two-color image processing device with high processing efficiency, which optimizes the data amount and alleviates the uneven processing load.

According to a second aspect of the present invention, in the image processing apparatus according to the first aspect, the synchronization shift correction means is provided in the image memory control means, and the color conversion means is provided in the image processing means. The means is provided.

According to the second aspect of the present invention, at least one of the additional processes required for forming a two-color image is assigned to means other than the image processing means. The load on the image processing means can be reduced, and the efficiency of image processing for forming a two-color image can be increased. In addition to this, the image memory control means can correct the synchronization deviation of the R, G, B image data. Therefore, the image data in the R, G, and B states can be input to the image data storage unit. Then, since the added data in which the synchronization deviation of the R, G, and B image data has been corrected by the image memory control means can be stored in the memory, it is not necessary to perform the correction processing every time by the image processing means or the like. Thus, the processing load on the image processing means and the like can be further reduced.

According to a third aspect of the present invention, in the image processing apparatus according to the first aspect, the image data input means includes the synchronization shift correcting means and the color converting means. And

According to the third aspect of the present invention, at least one of the additional processes required for forming a two-color image is shared by means other than the image processing means. The load on the image processing means can be reduced, and the efficiency of image processing for forming a two-color image can be increased. In addition to this, the image data input unit can correct the synchronization deviation of the image data, and can further perform the color conversion processing. For this reason, the image data input means can output black and image data of another color different from black. Since the two-color correction process is completed before the process, the necessity of correcting the two-color data in the subsequent process can be eliminated.

According to a fourth aspect of the present invention, in the image processing apparatus according to the first aspect, the image data control unit includes a synchronization shift correction unit and the color conversion unit. I do.

According to the image processing apparatus of the present invention, at least one of the additional processes required for forming a two-color image is shared by means other than the image processing means. Thus, the load on the image processing means can be reduced, and the efficiency of image processing for forming a two-color image can be increased. In addition to this, the image data control unit can correct the synchronization deviation of the image data, and can further perform a color conversion process. Therefore, the image data control means can output image data of black and another color different from black. Further, since a two-color image without synchronization is obtained before the image is stored in the image processing means or the memory, the correction processing of the two-color color in the image memory control means or the image processing means can be reduced. it can.

According to the above-described image processing apparatus, it is possible to reduce the load on the image processing means having a particularly large processing load. The increase in the transfer amount of the image data can be suppressed.

According to a fifth aspect of the present invention, in the image processing apparatus according to the first to fourth aspects, the image processing apparatus further includes a sub-scanning direction that scales image data in the sub-scanning direction when reading the image. A scaling unit is provided in the image memory control unit.

According to the fifth aspect of the present invention, in addition to the effects of the first to fourth aspects of the present invention, further, the image memory control means can scale the image data in the sub-scanning direction. It is not necessary to perform a part of the scaling process inside the image processing means, so that the data transfer amount and the accumulation of the image data can be optimized, and the correction of the synchronization shift at the time of the scaling can be simplified. be able to.

According to a sixth aspect of the present invention, in the image processing apparatus according to the first to fifth aspects, the timing of outputting the image data converted by the color conversion means as a visualized image is further determined. Timing control means for controlling is provided in any one of the image data input means, the image processing means, the image memory control means, and the image data control means.

According to the sixth aspect of the present invention, in addition to the effects of the first to fifth aspects, the timing control means further considers the transfer amount of image data and the storage capacity of image data. The image data input means, the image processing means, the image memory control means, and the image data control means. Therefore, it is possible to optimize the arrangement of the output means as a visualized image of the designated color and black image signals after the image processing.

According to a seventh aspect of the present invention, in the image processing apparatus according to the sixth aspect, the timing control means is provided in the image memory control means.

According to the seventh aspect of the invention, in addition to the effect of the sixth aspect, the image memory control means outputs the image data converted by the color conversion means as a visualized image. Can be controlled, and the image data control means can output black and image data of another color different from black. For this reason, it is possible to control the timing of separating the image data into black and a specified color, storing the image data in a memory after performing predetermined image processing, and outputting the image data as a visualized image.

In the image processing apparatus according to the eighth and ninth aspects of the present invention, the timing control means is provided in the image data input means, and the timing control means Means is provided in each of the image data output means, the image memory control means, and the image data control means.

According to the eighth aspect of the invention, in addition to the effects of the sixth aspect, the image data input means outputs the image data converted by the color conversion means as a visualized image. Can be controlled. Therefore, the image data control means can output image data of black and another color different from black. For this reason, the image data is separated into black and the specified color,
The timing of outputting as a visualized image after performing predetermined image processing can be controlled in the image data input means.
According to the ninth aspect of the present invention, it is possible to control the entire image data output unit, the image memory control unit, and the image data control unit.

Further, a second object of the present invention is to provide a first embodiment.
The invention described in 0 to 15 is achieved by providing the following means.

An image processing apparatus according to a tenth aspect of the present invention is an image processing apparatus which receives a color image, separates the image into three colors of red, green, and blue and converts the image into color image data for each color. Data input means, color conversion means for converting the color image into two-color image data consisting of black and a designated color other than black, and scaling means for scaling an image signal converted to the two-color image; Image data output means for outputting image data as a visualized image, programmable image processing means for processing image data created by the image data input means and executing a plurality of types of image processing, and storing the image data An image data storage unit; an image memory control unit that collectively manages access of the image data to the image data storage unit; and a transfer of the image data between the units. And an image data control unit for managing the image data. The image processing apparatus further comprises: an image data control unit configured to manage the image data in the image data storage unit and a data transfer amount between the plurality of units. A part or all of the doubling means is arranged.

According to the tenth aspect of the present invention, a part or the entirety of the scaling means can optimize the image storage in the image data storage unit and the data transfer amount between the plurality of means. Since the image data is arranged at such a processing position, it is possible to suppress an increase in the amount of image data transferred between the plurality of units and the accumulation of images in the image data storage unit.

According to an eleventh aspect of the present invention, in the image processing apparatus according to the tenth aspect, the scaling unit includes a main scanning scaling unit and a sub-scanning scaling unit. It is provided in the image data control means.

According to the eleventh aspect of the present invention, since the variable power means constituted by the variable power means for main scanning and the variable power means for sub scanning is provided in the image data control means,
The load on the image processing means having a large processing load can be reduced.

An image processing apparatus according to a twelfth aspect of the present invention is the image processing apparatus according to the tenth and eleventh aspects, wherein the scaling means is provided in the image data control means.

According to the twelfth aspect of the present invention, it is possible to reduce the transfer amount of image data between the image processing means, the memory, and the image data control means.

According to a thirteenth aspect of the present invention, in the image processing apparatus according to the tenth aspect, the sub-scanning scaling unit is provided in the image data control unit, and the main scanning scaling unit is provided. Means is provided in the image processing means.

According to the thirteenth aspect, it is possible to reduce the transfer amount of image data between the image data control means and the memory.

According to a fourteenth aspect of the present invention, in the image processing apparatus according to the tenth aspect, the main scanning scaling unit is provided in the image data control unit, and the sub scanning scaling unit is provided. Means is provided in the image processing means.

According to the fourteenth aspect, the transfer amount of image data between the image data control means and the memory can be reduced.

In the image processing apparatus according to the present invention, the non-uniformity of data resulting from the optical system of the digitally converted image signal may be corrected. Means for correcting a line synchronization shift of an image signal that has been separated into three colors of red, green, and blue, and means for controlling the timing of outputting the two-color converted image signal as a visible image. And

According to the fifteenth aspect of the present invention, it is possible to obtain a visible image of a two-color converted image signal without color misregistration in which data nonuniformity due to an optical system is corrected.

The third object is achieved by using an image processing apparatus having the above-described means to construct a multifunction device or a multifunction system having functions such as a facsimile machine, a copying machine, and a printer. .

[0044]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an image processing apparatus, an image processing method, a multifunction device, and a multifunction system according to the present invention will be described below in detail with reference to the accompanying drawings.

An image processing apparatus according to an embodiment of the present invention reads out an image, and creates image data for each of a plurality of colors (R, G, B) based on the read image; Programmable image processing means for processing image data created by the input means and executing a plurality of image forming operations such as facsimile operations and copy operations, and collectively managing image data access to a memory for storing image data. The image processing apparatus is configured as an MFP having image memory control means for controlling image data transmission and image data control means for collectively managing transmission of image data to programmable image processing means.

Further, the image processing apparatus according to the embodiment of the present invention further comprises a synchronous shift correcting means for correcting a synchronous shift occurring between the colors of the image data created for each of a plurality of colors, and a synchronous shift correcting means. And color conversion means for converting the image data corrected for the synchronization shift into black and image data of another color different from black. The color conversion means converts the R, G, and B image data, for which the synchronization shift has been corrected by the synchronization shift correction means, into black and red image data to form a black / red two-color image.

In the image processing apparatus according to the embodiment of the present invention, the color conversion means and the synchronization shift correction means may include any one of an image data input means, an image processing means, an image memory control means, and an image data control means. Crabs are provided separately or together. At this time, the color conversion means and the synchronization shift correction means improve the processing efficiency of the two-color image forming process performed by the image processing apparatus according to the embodiment of the present invention, and reduce the amount of image data stored in the memory. It is arranged for the purpose of forming a two-color image using a relatively small memory.

First, the principle of the image processing apparatus according to the embodiment of the present invention will be described. FIG. 1 is a block diagram functionally showing the configuration of the image processing apparatus according to the embodiment of the present invention. In FIG. 1, the image processing apparatus has a configuration including the following five units. The principle of the image processing apparatus described below and the configuration for realizing the five units are common to all the embodiments described below.

The five units include an image data control unit 100, an image reading unit 101 for reading image data, and an image memory control unit 102 for controlling an image memory for storing images and writing / reading image data. And an image processing unit 103 that performs image processing such as processing and editing on the image data, and an image writing unit 104 that writes the image data on transfer paper or the like.

Of the five units, the image data control unit 100 has a function as image data control means. Further, the image reading unit 101 has a function as image data input means, and
Reference numeral 2 has a function as an image memory control unit, and the image processing unit 103 has a function as a programmable image processing unit.

Each of the above-mentioned units is configured around an image data control unit 100. That is, the image reading unit 101, the image memory control unit 102, the image processing unit 103, and the image writing unit 104 are all connected to the image data control unit 100.
Hereinafter, the basic processing performed in each unit will be described.

(Image Data Control Unit 100) The processing performed by the image data control unit 100 is as follows.

For example, (1) data compression processing (primary compression) for improving data bus transfer efficiency, (2) transfer processing of primary compressed data to image data, (3) image synthesis processing (from a plurality of units) (4) Image shift processing (shifting of the image in the main scanning and sub-scanning directions), (5) Image area expansion Processing (the image area can be enlarged by an arbitrary amount to the periphery), (6) image scaling processing (for example, fixed scaling of 30% or 200%), (7) parallel bus interface processing,
(8) Serial bus interface processing (interface with process controller 211 described later), (9) format conversion processing of parallel data and serial data, (10) interface processing with image reading unit 101, (11) image processing Unit 10
3 and the like.

(Image reading unit 101) The processing performed by the image reading unit 101 is as follows.

For example, (1) reading processing of reflected light of an original by an optical system, (2) CCD (Charge Couple)
(3) digitization processing with an A / D converter, (4) shading correction processing (processing for correcting unevenness in illuminance distribution of a light source), (5) ) Scanner γ correction processing (processing for correcting the density characteristics of the reading system), and the like.

(Image memory control unit 102) The processing performed by the image memory control unit 102 is as follows.

For example, (1) interface control processing with a system controller, (2) parallel bus control processing (interface control processing with a parallel bus), (3) network control processing, (4) serial bus control processing (a plurality of processes) External serial port control processing),
(5) Internal bus interface control processing (command control processing with the operation unit), (6) Local bus control processing (ROM and R for starting the system controller)
AM, font data access control processing), (7) memory module operation control processing (memory module write / read control processing, etc.), and (8) memory module access control processing (from a plurality of units). Arbitration of memory access requests), (9) data compression / decompression processing (processing to reduce the amount of data for effective use of memory), (10) image editing processing (data clearing of a memory area, Image data rotation processing, image synthesis processing on a memory, etc.). In the image processing according to the embodiment of the present invention, the image memory control unit 102 also has a function of image scaling processing.
The image scaling function of the image memory control unit 102 will be described in the fourth embodiment.

(Image processing unit 103) The processing performed by the image processing unit 103 is as follows.

For example, (1) shading correction processing (processing for correcting unevenness in illuminance distribution of a light source), (2) scanner γ correction processing (processing for correcting density characteristics of a reading system), (3) MTF correction processing, 4) smoothing, (5)
Arbitrary magnification processing in the main scanning direction, (6) density conversion (γ conversion processing: corresponding to density notch), (7) simple multi-value processing,
(8) Simple binarization processing, (9) Error diffusion processing, (10)
Dither processing, (11) dot arrangement phase control processing (rightward dot, leftward dot), (12) isolated point removal processing,
(13) Image area separation processing (color determination, attribute determination, adaptive processing), (14) density conversion processing, and the like.

(Image Writing Unit 104) The processing performed by the image writing unit 104 includes the following.

For example, (1) edge smoothing processing (jaggy correction processing), (2) correction processing for dot rearrangement,
(3) image signal pulse control processing, (4) parallel data and serial data format conversion processing, and the like.

(Hardware Configuration of Digital MFP)
Next, a hardware configuration of the image processing apparatus according to the embodiment of the present invention will be described. FIG. 2 is a block diagram illustrating an example of a hardware configuration of the image processing apparatus according to the embodiment of the present invention. In the embodiment of the present invention, the image processing apparatus is configured as a digital MFP (digital multifunction peripheral).

In the block diagram of FIG. 2, the image processing apparatus according to the embodiment of the present invention includes a reading unit 201,
Sensor board unit 202, image data control means 203, and programmable image processing means (hereinafter, referred to as
An image processor 204, a video data control unit 205, and an imaging unit (engine) 206. The image processing apparatus according to the embodiment of the present invention includes a process controller 211, a RAM 212, and a ROM 213 via a serial bus 210.

The image processing apparatus according to the embodiment of the present invention includes an image memory control unit 221 and a facsimile control unit 224 via a parallel bus 220, and further includes a memory connected to the image memory control unit 221. A module 222, a system controller 231, a RAM 232, a ROM 233, and an operation panel 234; In the embodiment of the present invention, the configuration shown in FIG. 2 creates data (image forming data) for forming an image by the image forming unit (engine) 206 based on the image data. The portion excluding the image forming unit (engine) 206 was used as an image forming data generating section 200.

Here, the relationship between each of the above components and each of the units 100 to 104 shown in FIG. 1 will be described. That is, the reading unit 201 and the sensor board
The function of the image reading unit 101 shown in FIG. 1 is realized by the unit 202. Therefore, the reading unit 201
The sensor board unit 202 serves as an image data input unit of the image processing apparatus according to the embodiment of the present invention. Similarly, by the image data control means 203,
The function of the image data control unit 100 is realized. Therefore, the image data control unit 203 is an image data control unit of the image processing device according to the embodiment of the present invention.

Similarly, the function of the image processing unit 103 is realized by the image processor 204. Therefore, the image processing processor 204 serves as an image processing unit of the image processing device according to the embodiment of the present invention. Similarly, the image memory control unit 102 is realized by the image memory control unit 221 and the memory module 222. Therefore, the memory module 222 serves as an image memory control unit according to the image processing apparatus according to the embodiment of the present invention. Similarly, the image writing unit 104 is realized by the video data control unit 205 and the image forming unit (engine) 206.

Next, the contents of each component will be described.
The reading unit 201 that optically reads a document includes a lamp, a mirror, and a lens, and condenses the reflected light of the lamp irradiation on the document to a light receiving element by the mirror and the lens.

A light receiving element, for example, a CCD is mounted on the sensor board unit 202 as a CCD line sensor. In the image processing apparatus according to the embodiment of the present invention, the CCD line sensor is a sensor composed of three lines of CCDs for receiving respective colors of R, G and B exclusively. The image data converted into an electric signal in the CCD is converted into a digital signal, and then converted into a digital signal.
Output (transmitted) from the board unit 202.

The image data output (transmitted) from the sensor board unit 202 is transmitted to the image data control unit 20.
3 (received). Transmission of image data between the functional device (processing unit) and the data bus is entirely controlled by the image data control means 203.

The image data control means 203 performs data transfer between the sensor board unit 202, the parallel bus 220, and the image processor 204, and the process controller 21 for the image data.
1 and a system controller 231 that controls the entire image processing apparatus. Also, the RAM 212
Is used as a work area of the process controller 211, and the ROM 213 stores a boot program and the like of the process controller 211.

The image data output (transmitted) from the sensor board unit 202 is transmitted to the image data control unit 2.
The signal is transferred (transmitted) to the image processor 204 via the signal processor 03, and the signal deterioration accompanying the quantization into the optical system and the digital signal (referred to as the signal deterioration of the scanner system) is corrected. Output (send)
Is done.

The image memory control means 221 controls writing / reading of image data to / from the memory module 222. In addition, it controls the operation of each component connected to the parallel bus 220. The RAM 232 is used as a work area of the system controller 231, and the ROM 233 is used as a work area of the system controller 231.
And the like are stored.

Next, the basic operation of the image processing apparatus having the above-described configuration according to the embodiment of the present invention will be described. The operation panel 234 inputs a process to be performed by the image processing apparatus. For example, the type of process (copying, facsimile transmission, image reading, printing, etc.), the number of processes, and the like are input. Thereby, input of image data control information can be performed. The facsimile control unit 2
24 will be described later.

The read image data is stored in a memory
There are jobs stored in the module 222 and reused, and jobs not stored in the memory module 222. Each case will be described. Memory module 2
For example, when a plurality of sheets of one document are copied, the reading unit 201 is operated only once, and the image data read by the reading unit 201 is stored in the memory module 222 and stored in the memory module 222. There is a method of reading the image data that has been performed a plurality of times.

As an example in which the memory module 222 is not used, when only one document is copied, the read image data may be reproduced as it is. No access is required.

First, when the memory module 222 is not used, the data transferred from the image processor 204 to the image data controller 203 is returned from the image data controller 203 to the image processor 204 again.
The image processor 204 performs image quality processing for converting luminance data by the CCD in the sensor board unit 202 into area gradation.

The image data after the image quality processing is transferred from the image processor 204 to the video data control unit 205. The post-processing related to the dot arrangement and the pulse control for reproducing the dots are performed on the signal changed to the area gradation, and then the reproduced image is formed on the transfer paper in the image forming unit (engine) 206.

Next, a description will be given of the flow of image data in the case where additional processing such as rotation in the image direction and synthesis of images are performed at the time of reading the image stored in the memory module 222. The image data transferred from the image processor 204 to the image data control unit 203 is sent from the image data control unit 203 to the image memory control unit 221 via the parallel bus 220.

Here, the system controller 23
Image data and memory module 2 based on the control of
Access control 22, expansion of print data of an external PC (personal computer) 223, and compression / compression of image data for effective use of the memory module 222.
Perform stretching.

The image data sent to the image memory control means 221 is stored in the memory module 222 after data compression, and the stored image data is read out as needed. The read image data is decompressed, returned to the original image data, and returned from the image memory control unit 221 to the image data control unit 203 via the parallel bus 220.

After the image data is transferred from the image data control means 203 to the image processor 204, image quality processing and video / video processing are performed.
Pulse control is performed by the data control unit 205, and a reproduced image is formed on transfer paper in the image forming unit (engine) 206.

In the flow of the image data, the function of the digital multi-function peripheral is realized by the bus control by the parallel bus 220 and the image data control means 203. In the facsimile transmission function, the read image data is subjected to image processing by the image processor 204 and transferred to the facsimile control unit 224 via the image data control means 203 and the parallel bus 220. The facsimile control unit 224 performs data conversion to a communication network, and transmits the data to a public line (PN) 225 as facsimile data.

On the other hand, the received facsimile data is
Line data from the public line (PN) 225 is converted into image data by the facsimile control unit 224 and transferred to the image processor 204 via the parallel bus 220 and the image data control means 203. In this case, no special image quality processing is performed, and the video data control unit 2
At 05, dot relocation and pulse control are performed, and an image forming unit (engine) 206 forms a reproduced image on transfer paper.

In a situation where a plurality of jobs, for example, a copy function, a facsimile transmission / reception function, and a printer output function operate in parallel, allocation of the right to use the reading unit 201, the imaging unit (engine) 206, and the parallel bus 220 to the job is performed. System controller 23
1 and the process controller 211.

The process controller 211 controls the flow of image data, and the system controller 231
Controls the entire system and manages the activation of each resource. In addition, the function selection of the digital multifunction peripheral is made on the operation panel 2
At 34, selection and input are performed to set processing contents such as a copy function and a facsimile function.

The system controller 231 and the process controller 211 communicate with each other via the parallel bus 220, the image data control means 203, and the serial bus 210. Specifically, communication between the system controller 231 and the process controller 211 is performed by performing data format conversion for the data interface between the parallel bus 220 and the serial bus 210 in the image data control unit 203.

Next, the configuration of the image processor 204 and the image data control means 203 of the image processing apparatus according to the embodiment of the present invention will be described in more detail.

FIG. 3 is a block diagram showing an outline of the processing of the image processor 204 of the image processing apparatus according to the embodiment of the present invention. In the block diagram of FIG. 3, the image processing processor 204 includes a first input I / F 301, a scanner image processing unit 302, a first output I / F 303,
The configuration includes a second input I / F 304, an image quality processing unit 305, and a second output I / F 306.

In the above configuration, the read image data is sent to the first processor of the image processor 204 via the sensor board unit 202 and the image data control means 203.
The data is transmitted from the input interface (I / F) 301 to the scanner image processing unit 302.

The purpose of the scanner image processing unit 302 is to correct the deterioration of the read image data. Specifically, shading correction, scanner γ correction, MTF
Make corrections and so on. Although not a correction process, a scaling process for enlargement / reduction can also be performed. When the correction processing of the read image data is completed, the first output interface (I / F)
The image data is transferred to the image data control unit 203 via 303.

At the time of output to transfer paper, the image data from the image data control means 203 is received from the second input I / F 304, and the image quality processing section 305 performs area gradation processing. The image data after the image quality processing is output to the video data control unit 205 or the image data control unit 203 via the second output I / F 306.

Area gradation processing in the image quality processing unit 305 includes density conversion processing, dither processing, error diffusion processing, and the like, and the main processing is area approximation of gradation information. Once the image data processed by the scanner image processing unit 302 is stored in the memory module 222, various reproduced images can be confirmed by changing the image quality processing by the image quality processing unit 305.

For example, by changing (changing) the density of the reproduced image or changing the number of lines of the dither matrix, the atmosphere of the reproduced image can be easily changed. At this time, it is not necessary to read the image again from the reading unit 201 every time the processing is changed, and by reading the stored image data from the memory module 222, the same image data can be subjected to different processing over and over again. Can be implemented quickly.

Further, when the image processing apparatus according to the embodiment of the present invention operates as a single scanner, the scanner image processing and the gradation processing are performed together, and the image data control means 2 is used.
Output to 03. The processing content can be changed programmably. Switching of processing, change of processing procedure, and the like are managed by the command control unit 307 via the serial I / F 308.

Next, the internal configuration of the image processor 204 will be described. FIG. 4 is a block diagram illustrating an internal configuration of the image processor 204 of the image processing apparatus according to the embodiment of the present invention. In the block diagram of FIG. 4, the image processor 204 has a plurality of input / output ports 401 for data input / output with the outside, and can set data input and output arbitrarily, respectively.

A bus switch / local memory 402 is provided internally so as to be connected to the input / output port 401, and the memory control unit 403 controls a memory area to be used and a data bus route. The input data and the data for output are allocated to the bus switch / local memory 402 as a buffer memory,
Each is stored and the I / F with the outside is controlled.

Bus switch / local memory 402
The processor array unit 404 performs various processes on the image data stored in the bus switch / local memory 402 again. The processing procedure in the processor array unit 404, parameters for processing, and the like are exchanged between the program RAM 405 and the data RAM 406.

Program RAM 405, Data RAM 4
06 is transmitted from the process controller 211 to the host buffer 407 through the serial I / F 408.
Downloaded to Further, the process controller 211 reads the contents of the data RAM 406 and monitors the progress of the processing.

When the contents of the processing and the processing form required by the system are changed, the program RAM 405 and the data RAM 4 referred to by the processor array unit 404 are changed.
06 is updated and responded.

FIG. 5 is a block diagram showing an outline of the processing of the image data control means 203 of the image processing apparatus according to the embodiment of the present invention. In the block diagram of FIG. 5, the image data input / output control unit 501 inputs (receives) image data from the sensor board unit 202 and outputs (transmits) image data to the image processor 204.

That is, the image data input / output control unit 501
Are an image reading unit 101 and an image processing unit 103
(Image processing processor 204), and can be said to be an exclusive input / output unit only for transmitting image data read by image reading unit 101 to image processing unit 103.

The image data input control unit 502 inputs (receives) the image data corrected by the image processing processor 204 for the scanner image. In order to increase the transfer efficiency of the input image data in the parallel bus 220,
The data compression unit 503 performs data compression processing. After that, the parallel data I
It is sent to the parallel bus 220 via / F505.

The parallel data I from the parallel bus 220
Since the image data input via the / F 505 is compressed for bus transfer, it is sent to the data decompression unit 506 via the data conversion unit 504, where the data decompression process is performed. The decompressed image data is transferred to the image processor 204 in the image data output control unit 507.

The image data control means 203 also has a function of converting parallel data and serial data.
The system controller 231 is a parallel bus 220
, And the process controller 211 transfers the data to the serial bus 210. The image data control unit 203 performs data conversion for communication between the two controllers.

The serial data I / F is a first serial data I / F 5 for exchanging data with the process controller 211 via the serial bus 210.
08, and a second serial data I / F 509 used for exchanging data with the image processor 204. By providing one system independently of the image processor 204, the interface with the image processor 204 can be smoothed.

The command control section 510 controls the operation of each component and each interface in the image data control means 203 according to the input command.

Next, the mechanical configuration of the image forming unit (engine) 206 will be described. FIG. 6 is a diagram illustrating an image forming unit (engine) 206 configured as a color printer common to the embodiments of the present invention. The image forming data generation unit 200 in the image processing apparatus shown in FIG. 2 outputs a signal pulse-controlled by the video data control unit 205 to the image forming unit (engine) 206.

The image forming unit (engine) 206 of the image processing apparatus according to the embodiment of the present invention forms a black / red two-color image on paper and outputs it. For this,
The image forming unit (engine) 206 is a red writing unit 615 that forms an electrostatic latent image of an image (red image) expressed as red in the two-color image, and is expressed as black in the two-color image. And a black writing unit 601 for forming an electrostatic latent image of an image (black image).

The image forming unit (engine) 206
Includes a photosensitive drum 604, a charging charger 603 disposed around the photosensitive drum 604, a black developing unit 613, a red developing unit 612, and a transfer charger 608.
And a cleaning device 605.

An image forming unit (engine) 206
Are a paper feed tray 611 for supplying paper and a paper feed tray 6
11, a paper feed roller 610 for carrying out the paper, a transport belt 607 and a registration roller 609 for transporting the paper,
And a fixing device 606. Further, the image forming unit (engine) 206 includes the image forming unit (engine) 20.
6 is provided with a plotter control unit 602 for controlling a printing operation in a mechanical configuration.

The plotter control unit 602 generates a control signal based on a control signal output from the image forming data generating unit 200 and a signal detected by a sensor (not shown) provided in the image forming unit (engine) 206, and controls each driving (not shown). Output to the section.

The black writing section 601 and the red writing section 615 are arranged so as to form latent images at different positions on the outer peripheral surface of the photosensitive drum 604. Sensor board unit 2
02, the black image data_black image data_ and the red image data_red image data_ obtained by converting the R, G, B image data read in
2 is stored. Thereafter, the red image data is output to the red writing unit 615 at a timing later than the timing at which the black image data is output to the black writing unit 601.

After the surface of the photosensitive drum 604 is uniformly charged by the charging charger 603, the black writing section 601
Writes an electrostatic latent image on the surface of the photosensitive drum 604.
The electrostatic latent image written by the black writing unit 601 is developed by the black developing unit 613 to become a black toner image.

Following the writing by the black writing section 601, the red writing section 615 also writes an electrostatic latent image on the surface of the photosensitive drum 604. The electrostatic latent image written by the red writing unit 615 is developed by the red developing unit 612 to become a red toner image.

On the other hand, the paper feed rollers 61
The paper conveyed out at 0 is temporarily stopped by a registration roller 609 and then conveyed to a transfer position on a transfer charger 608 in synchronization with the toner image on the surface of the photosensitive drum 604. The toner image is transferred onto a sheet at a transfer position, further fixed by a fixing device 606, and discharged outside, or conveyed again inside the image forming unit (engine) 206. By the above operation, the image forming unit (engine) 206 forms a two-color image of black / red.

Next, a description will be given of a two-color image forming process performed by the image processing apparatus according to the embodiment of the present invention.
FIG. 7 is a diagram illustrating a procedure of converting image data of three colors of R, G, and B into image data of black and red in the processing procedure of the two-color image formation.

According to FIG. 7, the R, G, and B image data are separated into color (red) data and non-color data (non-red data) in the color detection processing 701. The image data separated as non-color data is further subjected to white data,
The discrimination of the black data is determined, and information for identifying the white data and the black data is added. The red data, the white data, and the black data are corrected in the color misregistration correction processing 703 to correct the color misregistration caused by the illumination unevenness of the reading system and the misregistration of the CCD line, and become black / red two-color image data.

FIG. 8 is a view for explaining a configuration for realizing the processing shown in FIG. The processing shown in FIG.
An RGB line synchronization shift correction unit 801 that corrects the synchronization shift of the reading timing of the image data created for each of the colors G and B, and converts the R, G, and B image data into black data and red data, Black / designated color separation unit 8 for separating color
02.

The RGB line synchronization shift correction unit 801 converts the image data of R (red in the figure), G (green in the figure), and B (blue in the figure) output from the sensor board unit 202 into one line. In this configuration, the signals are sequentially input and output at the same timing. The RGB line synchronization shift correction unit 801 having such a configuration can be realized by, for example, including a plurality of line memories that store image data (one line of image data) read by the CCD line sensor at a time.

In the image processing apparatus according to the embodiment of the present invention, there are 12 lines of synchronization shift between the R, G, and B colors, and the RGB line synchronization shift correction unit 8
In the case of 01, when the image scaling processing is not performed, the synchronization deviation of 12 lines is corrected.

The black / designated color separation section 802 includes a register section 811, a correction value selection section 812, and an input selection section 80.
3, a color detection unit 804, a color determination unit 805, a matrix generation unit 806, a pattern matching unit 807,
The image processing apparatus includes a color shift correction unit 808, a luminance calculation unit 809, and a timing adjustment unit 810.

The register section 811 includes a black / designated color separation section 8.
02, a red correction value 1 and a red correction value 2 for detecting red, a green threshold value, a luminance threshold value for determining white / black, and a processing mode_black / red 2 A mode for forming a color image or a mode for forming a two-color image of black / blue
_ Is stored in advance. The correction value selection unit 812 registers the register unit 8 according to the processing mode and level.
11 is selected and input to the color detection unit 804.

The input selector 803 selects two pieces of image data required for processing from the R, G, and B image data based on the mode data stored in the register 811. Further, the color detection unit 804 includes an input selection unit 803.
Is a configuration for detecting red from the two image data selected in step 2. In the image processing apparatus according to the embodiment of the present invention, the input selection unit 803 and the color detection unit 804 execute a color detection process 701.

Hereinafter, color detection processing 7 for detecting red.
01 will be described. The input selection unit 803 selects R image data and G image data from the R, G, and B image data, and inputs them to the color detection unit 804. The correction value selection unit 8
12 is a red correction value 1 used in the process of detecting red,
The color correction unit 8 selects the red correction value 2 and the green threshold value.
04. The color detection unit 804 converts the input R image data and G image data into the following equations (1) to (1).
It is substituted into (3), and it is determined whether or not the input image data is red based on whether or not the conditions of Expressions (1) to (3) are satisfied.

G> KG (1) R> G + KR1 (2) R> G + KR2 (3) where R: R image data (light amount signal) G: G image data (light amount) KG: Green threshold value KR1: Red correction value 1 KR2: Red correction value 2 Note that the relationship between the conditions of Expressions (1) to (3) and the determination result is as shown in FIG.

When the image processing apparatus is set to a mode for forming a white or black image,
It is determined whether the image data is black or white based on the determination formula shown in FIG.

The luminance calculator 809 receives the R, G, and B image data and calculates the luminance value of each of the R, G, and B image data. The calculation result is input to the color determination unit 805 and the timing adjustment unit 810. Timing adjustment unit 810
Outputs luminance data in accordance with the timing at which the color correction unit described later outputs two-color data.

The color judging section 805 reads the threshold value of luminance from the register section 811 and compares it with the calculation result of the luminance calculating section 809 to judge red, black and white for each pixel. The result of the determination is output to the matrix generation unit 806 as a signal indicating red, a signal indicating black, and a signal indicating white. The matrix generation unit 806 receives the signal output from the color determination unit 805 and accumulates signals for five lines to form a 5 × 5 matrix shown in FIG. .. Constituting the matrix each correspond to one pixel.

In the matrix constituting section, 5
In the × 5 matrix, the pixel 33 is set as a target pixel,
A linear line composed of four pixels, with the pixel 33 being the third, is created. By taking the linear lines in the vertical, horizontal, and diagonal directions, a total of eight linear line patterns (L
P1 to LP8) are created. FIG. 12 is a diagram showing eight linear line patterns.

The pattern matching unit 807 includes LP1 to LP1.
LP8 is input, and LP1 to LP8 are compared with a preset reference pattern. Then, a determination result as to whether or not each of the patterns LP1 to LP8 matches the reference pattern is output to the color misregistration correction unit 808.

When each of the patterns LP1 to LP8 matches the reference pattern, the color shift correction unit 808 determines that the target pixel included in the matched linear line pattern has a color shift, and follows a predetermined procedure. The color of the pixel of interest is changed (for example, red → black, black → red). Color shift correction unit 8
The image data for which the color shift has been corrected in 08 is output from the color shift correcting unit 808 as two-color data for forming a two-color image of black / red.

(First Embodiment) Next, a configuration specific to the first embodiment of the present invention will be described. The image processing apparatus according to the first embodiment includes an RGB line synchronization shift correction unit 801 in a memory module 222, and a black / designated color separation unit 80.
2 is provided in the image processor 204.

FIG. 13 is a block diagram for explaining the configuration of the first embodiment. The sensor board unit 202, the memory module 222, the video data control unit 205, the image data control unit 203, the image data Shown is a processing processor 204. The sensor board unit 202 includes a shading correction unit 1301. Further, the memory module 222 includes a red writing delay adjustment unit 1302 that delays writing to the red writing unit 615 with respect to writing to the black writing unit 601.

The image processor 204 includes a two-color image processing unit 1303 that performs image processing for forming a two-color image such as removal of an isolated point or dither processing on black image data and red image data. ing. In FIG. 13, the sensor board unit 2
02, the memory module 222, the image data control means 203, and the image processor 204 show only the configuration used for the processing according to the first embodiment, and the configuration irrelevant to the processing is omitted from the drawing. I have.

The image data created by the reading unit 201 and the sensor board unit 202 is subjected to shading correction by a shading correction unit 1301.
Shading correction is a process for correcting non-uniformity of image data caused by an optical system. FIG. 14 is a diagram exemplifying shading data, and FIG. 15 is a diagram for explaining an outline of shading correction processing.

The shading data shown in FIG.
This is data obtained by the image processing apparatus reading a reference white plate having a uniform density prior to reading the original. The horizontal axis represents the reading position n, and the vertical axis represents the reading signal corresponding to the reading position n. The level Sn is shown.

According to FIG. 14, it can be seen that the shading data indicates a non-uniform read signal level Sn although the density of the reference white plate is uniform. The higher the read signal level Sn, the brighter it indicates, and the lower the read signal level Sn, the darker it indicates. Also, the read signal level Sn
Is caused by the illuminance distribution of the illumination system.

The S data shown in FIG. 15 is obtained by arranging read signal levels Sn according to the read position n. D data is image data created in each read line, and C data is image data that has been subjected to shading correction by the following equation.

Cn = A * (Dn / Sn) (4) where Cn: nth C data Dn: nth D data A: normalization coefficient

The above-described shading correction processing is used for storing the S data in a local memory (not shown) in the sensor board unit 202, reading the image, and using it for an interpolation operation on image data (D data) generated. It is realized by doing.

The image data subjected to shading correction by the sensor board unit 202 is sequentially output to the memory module 222 via the image data control means 203. Then, the 12-line synchronization shift is corrected by the RGB line synchronization shift correction unit 801 provided in the memory module 222, and is output to the black / designated color separation unit 802. Then, the above equations (1), (2), (3)
, And is separated into black and the specified color red.

The image data separated into black and red by the black / designated color separation unit 802 is subjected to image processing in the two-color image processing unit 1303, and then output to the red writing delay adjustment unit 1302 of the memory module 222. Is done. Under the control of the red writing delay adjustment unit 1302, the image data of the red image is output to the video data control unit 205 after being delayed from the image data of the black image.

According to the image processing apparatus of the first embodiment of the present invention described above, the RGB line synchronization shift correction section 801
Is provided in the memory module 222 so that R,
G and B image data can be stored in a memory and output to an external device such as a personal computer.

(Second Embodiment) Next, a configuration specific to the second embodiment of the present invention will be described. The image processing apparatus according to the second embodiment includes an RGB line synchronization shift correction unit 801 and a black / designated color separation unit 802 in the sensor board unit 202.

FIG. 16 is a block diagram for explaining the configuration of the second embodiment. In FIG. 16, the same components as those of the image processing apparatus of the first embodiment among the image processing apparatuses of the second embodiment are denoted by the same reference numerals, and the description thereof will be partially omitted.

The image processing apparatus according to the second embodiment is similar to the image processing apparatus according to the first embodiment in that the sensor board
Unit 202, memory module 222, video
It includes a data control unit 205, an image data control unit 203, and an image processing processor 204.

Then, the sensor board unit 20
2 includes a shading correction unit 1301, an RGB line synchronization deviation correction unit 801, and a black / designated color separation unit 802, and the memory module 222 includes a red writing delay adjustment unit 1302. Then, the image processor 204
A color image processing unit 1303 is provided.

The image data created by the reading unit 201 and the sensor board unit 202 is subjected to shading correction by a shading correction unit 1301, and a synchronization deviation for each color is corrected by an RGB line synchronization deviation correction unit 801. Further, the image is separated into black and red in a black / designated color separation unit 802.

The image data separated into black and red is sent to the image processor 2 via the image data control means 203.
04 is output. Then, the image processing processor 20
4 after the image processing in the two-color image processing unit 1303, the red writing delay adjustment unit 13 in the memory module 222.
02 is output. Under the control of the red writing delay adjustment unit 1302, the image data of the red image is output to the video data control unit 205 after being delayed from the image data of the black image.

According to the image processing apparatus of the second embodiment described above, the sensor board unit 202
Line synchronization shift correction unit 801 and black / designated color separation unit 802
And the sensor board unit 2
In 02, the image data can be two-color image data of black and red. Therefore, the image data control means 2
03 can reduce the amount of image data transferred, and can reduce the load on the image data control unit 203.

Further, the image processing apparatus according to the second embodiment
The image data of two colors of black and red is stored in the memory module 22.
2, the image data can be stored in a relatively low capacity memory. Therefore, in the image processing apparatus according to the second embodiment, the size of the memory for storing image data can be reduced, and the size and cost of the image processing apparatus can be reduced.

(Third Embodiment) Next, a configuration specific to the third embodiment of the present invention will be described. The image processing apparatus according to the third embodiment includes an RGB line synchronization shift correction unit 801 and a black / black
Both the designated color separation unit 802 is provided in the image data control unit 203.

FIG. 17 is a block diagram for explaining the configuration of the third embodiment. In FIG. 17, the same components as those of the image processing apparatuses according to the first embodiment and the second embodiment among the image processing apparatuses according to the third embodiment are denoted by the same reference numerals, and the description is partially omitted. Shall be.

The image processing apparatus according to the third embodiment has a sensor board unit 202, a memory module 222, and a video data control unit, similarly to the image processing apparatuses according to the first and second embodiments. 205, an image data control unit 203 and an image processor 204.

Then, the sensor board unit 20
2 includes a shading correction unit 1301, and the image data control unit 203 controls the RGB line synchronization shift correction unit 80.
1. A black / designated color separation unit 802 is provided, and the memory module 222 is provided with a red writing delay adjustment unit 1302. Then, the image processing processor 204 controls the two-color image processing unit 1.
303 is provided.

The image data created by the reading unit 201 and the sensor board unit 202 is subjected to shading correction by a shading correction unit 1301. Then, it is output to the image data control means 203,
The RGB line synchronization shift correction unit 801 of the image data control unit 203 corrects the synchronization shift for each color. Then, the image is separated into black and red in the black / designated color separation unit 802.

The image data separated into black and red is output to the image processor 204. Then, after being subjected to image processing in the two-color image processing unit 1303 of the image processing processor 204, it is output to the red writing delay adjustment unit 1302 of the memory module 222. Under the control of the red writing delay adjustment unit 1302, the image data of the red image is output to the video data control unit 205 after being delayed from the image data of the black image.

According to the image processing apparatus of the third embodiment described above, since the image data control means 203 is provided with the RGB line synchronization shift correction section 801 and the black / designated color separation section 802, the image data control The image data of two colors, black and red, can be transferred from the means 203 to the image processor 204. Therefore, the image data control means 2
03 can reduce the amount of image data transferred, and can reduce the load on the image data control unit 203.

Further, according to the image processing apparatus of the third embodiment, by inputting image data of two colors, black and red, to the memory module 222, the image data is stored in a relatively small capacity memory. can do. Therefore, in the image processing apparatus according to the third embodiment, the memory for storing image data can be reduced in size, and the size and cost of the image processing apparatus can be reduced.

(Fourth Embodiment) Next, a configuration unique to the fourth embodiment i of the present invention will be described. The image processing apparatus according to the fourth embodiment further includes a sub-scanning direction scaling unit 1801 for scaling image data in the sub-scanning direction when reading an image.
Is provided in the memory module 222.

FIGS. 18 to 20 are block diagrams for explaining an image processing apparatus according to the fourth embodiment. FIG.
FIG. 19 is a block diagram for explaining a configuration in which a sub-scanning direction scaling unit 1801 is provided in the image processing apparatus described in the first embodiment. FIG. 19 is an image processing apparatus described in the second embodiment. 10 is a block diagram for explaining a configuration provided with a sub-scanning-direction zooming unit 1801. Also, FIG.
FIG. 28 is a block diagram for describing a configuration in which a sub-scanning direction scaling unit 1801 is provided in the image processing apparatus described in the embodiment.

As described above, the image processing apparatus according to the first to fourth embodiments has the
01 is used to correct a 12-line synchronization shift. When scaling an image with a conventional image processing apparatus having such a configuration, the image reading speed of the CCD line sensor is changed.

At this time, the RGB line synchronization shift correction unit 8
The synchronization deviation to be corrected by 01 also changes as the reading speed changes. For example, when forming an image obtained by enlarging an image to be read (original image) to 400%, three line shifts occur. When forming an image in which the original image is reduced to 25%,
A line shift of 48 lines occurs.

The process of changing the number of lines to be corrected according to the scaling factor of an image is complicated. In a conventional image processing apparatus, the RGB line synchronization shift correction unit 801 is configured to be able to handle complicated processes. It is necessary.

In the image processing apparatus according to the fourth embodiment of the present invention, the image reading speed of the CCD line sensor is set to the same speed as that at the time of the same magnification when forming the variable-magnification image. The image data is scaled in the sub-scanning direction by the sub-scanning direction scaling unit 1801 provided in the memory module 222.

According to the image processing apparatus of the fourth embodiment described above, the RGB line synchronization shift correction unit 801 always generates a fixed number of lines regardless of whether a scaled image is formed or an equal size image is formed. What is necessary is just to correct the synchronization deviation. Therefore, the fourth
In this embodiment, the configuration and the size of the RGB line synchronization shift correction unit 801 can be prevented from becoming complicated and large, and the configuration and processing of the image processing apparatus can be prevented from becoming complicated.

(Fifth Embodiment) Next, a configuration specific to the fifth embodiment of the present invention will be described. In the fourth embodiment described above, as shown in FIG.
2 was provided in the memory module 222,
In the image processing apparatus of the fifth embodiment, instead of providing the red writing delay adjusting unit 1302 in the memory module 222, the video data control unit 205
The data control unit 205a is divided into a data control unit 205a and a red image video data control unit 205b.
5b is provided with a delay adjustment unit 2101.

FIG. 21 is a block diagram for explaining the configuration of the fifth embodiment. In FIG. 21, the same components as those of the image processing apparatuses according to the first to fourth embodiments, among the image processing apparatuses according to the fifth embodiment, are denoted by the same reference numerals, and description thereof will be partially omitted. .

The image processing apparatus according to the fifth embodiment has a sensor board unit 202, a memory module 222, a video data control unit, like the image processing apparatuses according to the first to fourth embodiments. 205 (a black image video data control unit 205a, a red image video data control unit 205b), an image data control unit 203, and an image processing processor 204.

Then, the sensor board unit 20
2 has a shading correction unit 1301, the image data control unit 203 has nothing, and the memory module 222 has an RGB line synchronization shift correction unit 801;
And a sub-scanning direction zooming section 1801. And
The image processing processor 204 controls the black / designated color separation unit 80
2 and a two-color image processing unit 1303.

The image data created by the reading unit 201 and the sensor board unit 202 is subjected to shading correction by a shading correction unit 1301. Then, it is output to the image data control means 203,
The image data is further output from the image data control unit 203 to the memory module 222. In the memory module 222, the RGB line synchronization shift correction unit 801 provided in the memory module 222 corrects the synchronization shift for each color.

Then, the memory module 222
The magnification in the sub-scanning direction is performed by the sub-scanning direction magnification / magnification unit 1801. Thereafter, the image data is output to the image data control means 203, and further output from the image data control means 203 to the image processor 204.

In the image processor 204, the black / designated color separation unit 8 provided in the image processor 204
At 02, it is separated into black and red. The image data separated into black and red is also processed by the image processor 204.
The image data of the black image is output again to the video data control unit for black image 205a via the image data control unit 203 after the image processing is performed by the two-color image processing unit 1303 provided for the image data. On the other hand, the image data of the red image is output to the video data control unit for red image 205b.

The video data control unit 2 for red image
05b, the video data control unit for red image 205 is adjusted by the timing adjustment by the delay adjustment unit 2101 provided in the
The image data of the red image input to b is slightly delayed from the image data of the black image input to the video data control unit for black image 205a, and the image forming unit (engine) 206 (omitted in FIG. 21). ).

According to the image processing apparatus of the fifth embodiment described above, the image data processed by the image processor 204 is transferred directly to the video data control unit 205 via the image data control means 203. It becomes possible. Therefore, as the input / output of the memory module 222 is reduced, the load on the memory module 222 is reduced, the number of accesses to the memory module 222 is also reduced, and the control load on the entire device is further reduced. become.

(Sixth Embodiment) FIG. 22 is a block diagram for explaining a configuration of a sixth embodiment of the present invention. In FIG. 22, the same components as those of the image processing apparatus of the second embodiment described with reference to FIG. 19 are denoted by the same reference numerals, and the description thereof will be partially omitted. The example described here is another example of the arrangement of the scaling means (main scanning, sub-scanning) according to the second embodiment of the present invention.

In the example shown in FIG. 22, a main-scanning / sub-scanning magnification unit 2201, which is a main-scanning / sub-scanning magnification varying unit, is provided with a CDIC2.
This is an example of arrangement in the area 03. As described above, the image data of the original read by the reading unit 201 constituting the input means in the image forming data generation unit 200 as the image processing apparatus shown in FIG. For the color of, the shading correction by the shading correction unit 1301 and the R, G, B
Are performed by the black / designated color separation unit 802 to separate two lines of image data of red and black, which are designated colors. Thereafter, the image data is temporarily stored in the MEM 222 via the CDIC 203.

After that, the image data is read out from the MEM 222, and the main scanning / sub-scanning magnification unit 2201 provided in the CDIC 203 for this embodiment performs the main-scanning / sub-scanning magnification, and the IPP 204 Transferred to IP
The image data transferred to P204 is subjected to predetermined image processing by a two-color image processing unit 1303 provided in IPP204. Thereafter, this image data is stored in the CDIC 203
The timing is adjusted so that the red image data is output to the VDC 205 at a timing slightly later than the black image data, and is transferred to the image forming unit 206.

According to the image processing apparatus of the sixth embodiment described above, since the arrangement of the scaling means is optimized, the amount of image data stored in the memory and the amount of data transferred between the plurality of means are reduced. Can be optimized. Further, according to the sixth embodiment, since the magnification of the main scanning and the sub-scanning can be both performed after reading, it is sufficient to read the original at the same magnification. An inexpensive two-color image processing apparatus can be provided as long as it has enough capacity.

Further, according to the sixth embodiment, since the scaling means (main scanning and sub-scanning) are arranged in the CDIC 203, the amount of data transfer between the MEM 222 and the CDIC 203 is reduced, and the processing of the IPP 204 is reduced. Thus, more complex image processing in the IPP 204 can be performed.

(Seventh Embodiment) FIG. 23 is a block diagram for explaining a configuration of a seventh embodiment of the present invention. Note that the example shown in FIG. 23 is a main scanning / sub-scanning scaling unit 2201 in the sixth embodiment described with reference to FIG.
Are divided into a sub-scanning magnification unit 2301 and a main-scanning magnification unit 2302.

In the example shown in FIG. 23, the main-scanning and sub-scanning magnification means are divided into a sub-scanning magnification means 2301 and a main-scanning magnification means 2.
302, the sub-scanning magnification changing means is arranged in the CDIC 203, and the main scanning magnification changing means is arranged in the IPP 204. The processing until the image data of the document read by the reading unit 201 is temporarily stored in the MEM 222 is performed in the same manner as in the case of FIG. 22 described above.

Thereafter, the image data is read out from the MEM 222, and the sub-scanning magnification unit 2 provided in the CDIC 203 is used.
In step 301, the magnification of the sub-scan is changed and the result is transferred to the IPP 204. The image data transferred to the IPP 204 is the IPP
After main-scanning magnification is performed by a main-scanning magnification unit 2302 provided in the unit 204, predetermined image processing is performed by a two-color image processing unit 1303. Thereafter, similarly to the case described with reference to FIG. 4, the timing of this image data is adjusted so that the red image data is output to the VDC 205 at a timing slightly later than the black image data via the CDIC 203. Are transferred to the image forming unit 206.

(Eighth Embodiment) FIG. 24 is a block diagram for explaining a configuration of an eighth embodiment of the present invention. In the example shown in FIG. 24, the arrangement of the sub-scanning magnification unit 2301 and the main-scanning magnification unit 2302 in the seventh embodiment described with reference to FIG. 23 is reversed.

That is, in the eighth embodiment of the present invention, the sub-scanning scaling means 2301 is arranged in the IPP 204, and the main-scanning scaling means 2302 is arranged in the CDIC 203. The processing operation is the same as that of the sub-scanning scaling process and the main scanning scaling process.
This is performed in the same manner as in the case shown in FIG.

According to the image processing apparatuses of the seventh and eighth embodiments described above, the magnification changing means arranged on the CDIC 213 is provided in only one of the sub-scanning direction and the main scanning direction.
The processing of the IC 213 can be reduced, and the MEM 22
2 and the IPP 204 can be reduced in data transfer amount.

Note that the present invention is not limited to the first to eighth embodiments described above. For example, the first
In the eighth to eighth embodiments, the configuration in which the present invention is applied to the MFP has been exemplified. However, the present invention provides a means for reading an image to create image data, a programmable means for processing the created image data, a means for collectively managing access to the memory of the image data, The present invention can be applied to any image processing apparatus provided with a unit for managing transmissions collectively.

Further, the present invention is not limited to an image processing apparatus that creates image data for each of the three colors R, G, and B, but is also applicable to an image processing apparatus that creates image data for each of the other colors. Applicable. Further, in the first to eighth embodiments, an example in which a black / red two-color image is formed has been described. However, in the present invention, a color other than red can be used as a designated color. The present invention can be applied to the case of forming a blue two-color image.

The above-described various processes in each embodiment of the present invention are provided by storing them in a recording medium such as an FD, a CD, an MO, or a DVD as a processing program for realizing the processes. Can be.

[0190]

As described above, according to the first aspect of the present invention, at least one of the synchronization shift correction means and the color conversion means is provided in consideration of the transfer amount of image data and the storage capacity of image data. Is provided in any one of the image data input means, the image memory control means, and the image data control means, and at least one of the additional processes required when performing two-color image formation is performed. Since the image processing means is shared by the means other than the image processing means, the load on the image processing means can be reduced, and the efficiency of image processing for forming a two-color image can be increased. Optimize the amount of image data to be transferred,
It is possible to provide a two-color image processing apparatus with high processing efficiency in which the bias of the processing load is reduced. Further, the image data input means, the image processing means, the image memory control means, and the amount of image data and the amount of storage transferred between the image data control means are determined by the arrangement of the synchronization shift correction means and the color conversion means. There is an effect that an image processing apparatus that can be optimally set according to the use situation of the image processing apparatus can be obtained.

According to the invention of claim 2, 2
At least one of the additional processes required when forming a color image is shared by means other than the image processing means, so that the load on the image processing means can be reduced and the two-color image can be reduced. It is possible to increase the efficiency of image processing to be formed. In addition to this, the image memory control means can correct the synchronization deviation of the R, G, B image data. Therefore, the image data in the R, G, and B states can be input to the image data storage unit. Then, since the added data in which the synchronism of the R, G, and B image data has been corrected by the image memory control means can be stored in the memory, it is not necessary to perform the correction processing every time by the programmable image processing means. And the processing load on the image processing means and the like can be further reduced. According to the second aspect of the present invention, the image data in the R, G, and B states can be input to the image data storage unit.
For this reason, there is an effect that an image processing apparatus that can accumulate image data in the R, G, and B states and output the image data to the outside as needed can be obtained.

Further, according to the third aspect of the present invention, 2
At least one of the additional processes required when forming a color image is assigned to means other than the image processing means, so that the load on the image processing means can be reduced, and the two-color image can be reduced. It is possible to increase the efficiency of image processing to be formed. In addition to this, the image data input unit can correct the synchronization deviation of the image data, and can further perform the color conversion processing. For this reason, the image data input means can output black and image data of another color different from black. Since the two-color correction process is completed before the process, the necessity of correcting the two-color data in the subsequent process can be eliminated. And
According to the third aspect of the invention, it is possible to output black and image data of another color different from black from the image data input means. For this reason, the amount of image data transmitted / received by means subsequent to the image data input means is reduced, and an effect is obtained that an image processing apparatus capable of reducing the load on transmission / reception of image data can be obtained. Further, there is an effect that an image processing apparatus capable of storing image data output from the image data input means in a relatively small memory can be obtained.

Further, according to the invention described in claim 4, 2
At least one of the additional processes required when forming a color image is assigned to means other than the image processing means, so that the load on the image processing means can be reduced, and the two-color image can be reduced. It is possible to increase the efficiency of image processing to be formed. In addition to this, the image data control unit can correct the synchronization deviation of the image data, and can further perform a color conversion process. Therefore, the image data control means can output image data of black and another color different from black. Since a two-color image without synchronization is obtained before the image is stored in the programmable image processing means or the memory, the two-color color correction processing by the image memory control means or the programmable image processing means can be performed. Can be reduced. And Claim 4
According to the invention described in (1), the image data control means can output black and image data of another color different from black. For this reason, the amount of image data transmitted / received in a configuration subsequent to the image data control means is reduced, and an effect is obtained that an image processing apparatus capable of reducing the load on transmission / reception of image data is obtained. Further, there is an effect that an image processing apparatus capable of storing image data output from the image data control means in a relatively small memory can be obtained.

Further, according to the present invention, the load on the programmable image processing means having a particularly large processing load can be reduced, and the load between the memory and the image data control means can be reduced. It is possible to suppress an increase in the transfer amount of image data during the transfer.

According to the fifth aspect of the present invention, the image data can be scaled in the sub-scanning direction by the image memory control means. No need to change. For this reason, there is an effect that an image processing apparatus which can form a scaled image with a relatively simple configuration can be obtained.

According to the invention described in claim 6, the timing control means includes an image data input means, an image processing means, an image memory control means in consideration of a transfer amount of image data and a storage capacity of image data. It can be provided in any of the image data control means. For this reason, it is possible to optimize the arrangement of the output means as a visualized image of the designated color and the black image signal after the image processing, the image data input means, the image processing means, the image memory control means, the image data control means And an image processing apparatus capable of optimizing the data transfer amount between the respective means.

According to the seventh aspect of the present invention, since the timing control means is provided in the image memory control means, the image memory control means uses the image data converted by the color conversion means as a visualized image. The output timing can be controlled, and the image data control means can output black and image data of another color different from black. For this reason, the image data is separated into black and a specified color, stored in a memory after performing predetermined image processing,
By controlling the timing of outputting as a visual image in the memory, the load on the image data input unit can be reduced, and a common image data input unit can be used for black and a specified color. There is an effect that an image processing device can be obtained.

In the image processing apparatus according to the present invention, the timing control means is provided in the image data input means. The timing at which the image data converted by the conversion means is output as a visualized image can be controlled. Therefore, the image data control means can output image data of black and another color different from black. For this reason, it is possible to separate the image data into black and a designated color, and to control the timing of outputting as a visible image after performing predetermined image processing in the image data input means, thereby reducing the load on the image memory control means. In addition, by reducing the number of accesses to the image memory control means, it is possible to obtain an image processing apparatus capable of further reducing the control load on the entire apparatus.

According to a ninth aspect of the present invention, in the image processing apparatus according to the ninth aspect of the present invention, the timing control means is replaced by an image data output means, an image memory control means, and an image data control means. Since the image data output means, the image memory control means, and the image data control means are provided as a whole, the output timing of the image data can be controlled.

According to the first to ninth aspects of the present invention, even in an image processing apparatus such as an MFP capable of performing a plurality of image processing operations, an image exchanged between components included in the image processing apparatus can be performed. The data amount of data can be optimized. In addition, when forming a two-color image, by simplifying the correction of the synchronization shift that is complicated by scaling the image,
It is possible to provide an image processing apparatus having high processing efficiency of the two-color image forming process.

Claims 10, 11, 15, 16, 17, 2
According to the present invention as described in 1, 22, 23, 24, 28,
Since the arrangement of part or all of the scaling means has been optimized, it is possible to optimize the accumulation of image data in the memory and the amount of data transfer between the plurality of means. Further, according to these inventions, since both the main scanning and the sub-scanning can be performed after the reading, it is sufficient to read the original at the same magnification. An inexpensive two-color image processing apparatus can be provided as long as it has sufficient capacity.

According to the twelfth, twelfth, and twenty-fifth aspects of the present invention, the magnification changing means (main scanning and sub-scanning) is a CDIC.
Therefore, it is possible to reduce the amount of data transfer between the MEM and the CDIC and to reduce the processing of the IPP, and it is possible to perform more complicated image processing in the IPP.

Further, claims 13, 14, 19, 20, 2
According to the present invention described in 6, 27, since the scaling means disposed on the CDIC is only one of the sub-scanning direction and the main scanning direction, the processing of the CDIC can be reduced, and the MEM can be reduced.
It is possible to reduce the data transfer amount between the IPP and the IPP.

Further, claims 28, 29, 30, 31,
According to the present invention described in 32, 33, or 34, the efficiency of image processing for forming a two-color image is high, the memory is effectively used in the MFP, the function is easily improved with the improvement in the performance of peripheral units, It is possible to provide a complex system that can be easily divided into functions as a scanner, a single printer, and a single copier, and that has an optimal control configuration in terms of effective use of the system.

[Brief description of the drawings]

FIG. 1 is a block diagram functionally showing a configuration of an image processing apparatus according to first to eighth embodiments of the present invention.

FIG. 2 is a block diagram illustrating an example of a hardware configuration of an image processing apparatus according to first to eighth embodiments of the present invention.

FIG. 3 is a block diagram illustrating an outline of processing of an image processing processor of an image processing apparatus according to first to eighth embodiments of the present invention.

FIG. 4 is a block diagram illustrating an internal configuration of an image processor of the image processing apparatus according to the first to eighth embodiments of the present invention.

FIG. 5 is a block diagram illustrating an outline of processing of an image data control unit of the image processing apparatus according to the first to eighth embodiments of the present invention.

FIG. 6 is a diagram illustrating an image forming unit (engine) of the image processing apparatus according to the first to eighth embodiments of the present invention.

FIG. 7 shows R, R according to the first to eighth embodiments of the present invention.
FIG. 7 is a diagram illustrating a procedure for converting image data of three colors G and B into image data of one color different from black and black.

FIG. 8 is a diagram illustrating a configuration for realizing the processing illustrated in FIG. 7 according to the first to eighth embodiments of the present invention.

FIG. 9 is a diagram for explaining a determination as to whether or not image data is red according to the first to eighth embodiments of the present invention.

FIG. 10 is a diagram for explaining black / white determination of image data according to the first to eighth embodiments of the present invention.

FIG. 11 is a diagram showing a matrix used for color misregistration correction according to the first to eighth embodiments of the present invention.

FIG. 12 is a diagram for explaining a linear line pattern created based on the matrix shown in FIG. 11;

FIG. 13 is a block diagram for explaining the image processing apparatus according to the first embodiment of the present invention.

FIG. 14 is a diagram for explaining general shading data.

FIG. 15 is a diagram illustrating an outline of a general shading correction process.

FIG. 16 is a block diagram illustrating an image processing apparatus according to a second embodiment of the present invention.

FIG. 17 is a block diagram illustrating an image processing apparatus according to a third embodiment of the present invention.

FIG. 18 is a block diagram illustrating an image processing apparatus according to a fourth embodiment of the present invention.

FIG. 19 is another block diagram for explaining the image processing apparatus according to the fourth embodiment of the present invention.

FIG. 20 is another block diagram for explaining the image processing apparatus according to the fourth embodiment of the present invention.

FIG. 21 is a block diagram illustrating an image processing apparatus according to a fifth embodiment of the present invention.

FIG. 22 is another block diagram for explaining the image processing apparatus according to the sixth embodiment of the present invention.

FIG. 23 is another block diagram for explaining the image processing apparatus according to the seventh embodiment of the present invention.

FIG. 24 is a block diagram illustrating an image processing apparatus according to an eighth embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 image data control unit 101 image reading unit 102 image memory control unit 103 image processing unit 104 image writing unit 200 image forming data generation unit 201 reading unit 202 sensor board unit 203 image data control means 204 programmable image processing means 205 Video data control unit 205a Black image video data control unit 205b Red image video data control unit 210 Serial bus 211 Process controller 220 Parallel bus 221 Image memory control unit 222 Memory module 224 Facsimile control unit 231 System controller 234 Operation panel 302 Scanner image processing unit 305 Image quality processing unit 307 Command control unit 401 Input / output port 402 Bus / Switch / local memory 403 Memory control unit 404 Processor array unit 407 Host buffer 501 Image data input / output control unit 502 Image data input control unit 503 Data compression unit 504 Data conversion unit 506 Data decompression unit 507 Image data output control unit 510 Command control unit 601 Black writing unit 602 Plotter control unit 603 Charging charger 604 Photoconductor drum 606 Fixing device 607 Conveyor belt 608 Transfer charger 609 Registration roller 610 Feed roller 611 Feed tray 612 Red developing unit 613 Black developing unit 615 Red writing 701 Detection processing 702 Judgment processing 703 Correction processing 801 RGB line synchronization deviation correction section 802 Black / designated color separation section 803 Input selection section 804 Color detection section 805 Color determination section 806 Matri Color generation unit 807 pattern matching unit 808 color misregistration correction unit 809 luminance calculation unit 810 timing adjustment unit 811 register unit 812 correction value selection unit 1301 shading correction unit 1302 red writing delay adjustment unit 13032 color image processing unit 1801 sub-scanning direction scaling Unit 2101 delay adjustment unit

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 1/393 H04N 1/46 C 5C077 1/60 1/40 D 5C079 (72) Inventor Yuji Takahashi Tokyo In Ricoh, 1-3-6 Nakamagome, Ota-ku (72) Inventor Hiroyuki Kawamoto In Ricoh, 1-3-6 Nakamagome, Ota-ku, Tokyo (72) Inventor Yasuyuki Nomizu, Ota-ku, Tokyo 1-3-6, Nakamagome, Ricoh Co., Ltd. (72) Inventor: Sugitaka Sokigi In Ricoh, 1-3-3, Nakamagome Co., Ltd., Ota-ku, Tokyo (72) Rie Ishii, Ota-ku, Tokyo 1-3-3, Nakamagome Ricoh Co., Ltd. (72) Inventor Goji Tone 1-3-6, Nakamagome, Ota-ku, Tokyo Ricoh Co., Ltd. (72) Inventor Takusho Fukuda, Ota, Tokyo 1-3-6, Nakamagome, Ricoh Co., Ltd. (72) Inventor, Fumio Yoshizawa 1-3-6, Nakamagome, Ricoh, Ota-ku, Tokyo (72) Inventor Shinya Miyazaki, Naka, Ota-ku, Tokyo 1-3-6 Magome F-term in Ricoh Co., Ltd. (reference) CH14 CH18 5C076 AA21 AA22 AA26 BA06 5C077 MP08 NP05 PP17 PP20 PP31 PP32 PP39 PQ04 PQ12 PQ22 SS01 SS02 TT06 5C079 HA01 HA13 HB01 LA02 LA24 LA31 LA37 LB11 MA02 MA12 NA10 NA13 NA27 PA01 PA02 PA03

Claims (35)

[Claims] 1. A color image is input, and said image is red,
Image data input means (101, 20) for decomposing the color into three colors of green and blue and converting them into color image data for each color
1, 202), image data output means (104, 205, 206) for outputting image data as a visualized image, and process image data created by the image data input means to execute a plurality of types of image processing. A programmable image processing unit (103, 204), an image data storage unit (222) for storing the image data, and an image memory control unit (102, 204) for collectively managing access of the image data to the image data storage unit. 221) and image data control means (100, 203) for collectively managing the transfer of the image data between the respective means, wherein the color data generated for each of a plurality of colors is provided. Synchronization error correction means (8) for correcting the synchronization error generated between the colors of the image data.
01), and color conversion means (8) for converting the color image data, the synchronization shift of which has been corrected by the synchronization shift correction means, into two-color image data of black and another color different from black.
02), and at least one of the synchronization shift correction unit and the color conversion unit is provided in any one of the image data input unit, the image memory control unit, and the image data control unit. An image processing apparatus characterized by the above-mentioned. 2. An image processing apparatus according to claim 1, wherein said out-of-sync correction means is provided in said image memory control means, and said color conversion means is provided in said image processing means. 3. The image processing apparatus according to claim 1, wherein said synchronization shift correction means and said color conversion means are provided in said image data input means. 4. The image processing apparatus according to claim 1, wherein said synchronization shift correction means and said color conversion means are provided in said image data control means. 5. The image memory control unit according to claim 1, further comprising a sub-scanning direction scaling unit that scales image data in a sub-scanning direction when reading the image. 2. The image processing device according to 1. 6. The image data input means, further comprising: timing control means for controlling a timing at which the image data converted by the color conversion means is output as a visible image.
The image processing apparatus according to claim 1, wherein the image processing apparatus is provided in any one of the image processing unit, the image memory control unit, and the image data control unit. 7. An image processing apparatus according to claim 6, wherein said timing control means is provided in said image memory control means. 8. An image processing apparatus according to claim 6, wherein said timing control means is provided in said image data input means. 9. An image processing apparatus according to claim 6, wherein said timing control means is provided in one of said image data output means and image data control means. 10. A color image is input, and said image is red,
Image data input means for decomposing the color image into three colors of green and blue and converting the color image data into color image data for each color; Means, scaling means for scaling the image signal converted to the two-color image, image data output means for outputting image data as a visualized image, and processing of the image data created by the image data input means. A programmable image processing means for executing a plurality of types of image processing, an image data storage unit for storing the image data, and an image memory control means for collectively managing access of the image data to the image data storage unit, And an image data control unit that collectively manages the transfer of the image data between the units. Any one of the image data input unit, the image memory control unit, and the image data control unit so that the image storage in the image data storage unit and the data transfer amount between the plurality of units are optimized. An image processing apparatus, comprising: 11. An image processing apparatus according to claim 10, wherein said magnification changing means comprises a main scanning magnification changing means and a sub-scanning magnification changing means. 12. The image processing apparatus according to claim 10, wherein said scaling means is provided in said image data control means. 13. The magnification change means comprises a main scan magnification change means and a sub-scan magnification change means, and the sub-scan magnification change means is provided in the image data control means. 12. The image processing apparatus according to claim 10, wherein a scanning magnification changing unit is provided in the image processing unit. 14. The magnification changing means comprises a main scanning magnification changing means and a sub-scanning magnification changing means, wherein the main scanning magnification changing means is provided in the image data control means, and 11. The image processing apparatus according to claim 10, wherein a scanning magnification changing unit is provided in the image processing unit. 15. A means for correcting non-uniformity of data resulting from an optical system of a digitally converted image signal, and a means for correcting a line synchronization shift of the image signal which has been separated into three colors of red, green and blue. 15. The image processing apparatus according to claim 10, further comprising: a unit configured to control a timing at which the two-color-converted image signal is output as a visualized image. 16. A read color image is separated into three colors of red, green and blue, the image signal is converted into a digital image signal and input, and the color image is composed of black and a designated color other than black. Color image, temporarily store the image in a memory, scale the image signal converted to the two-color image, and output the image signal converted to the two-color image as a visible image, An image processing method for performing programmable image processing on the digitally converted image signal, collectively managing an interface between the digital signal and a bus, and performing pre-processing on the digital image signal, comprising: A part or all of the processing for performing the processing is performed at a processing position where the accumulation of the image data in the memory and the data transfer amount between the plurality of processings are optimized. Image processing method. 17. The image processing method according to claim 16, wherein the scaling process is performed by a main scanning scaling process and a sub-scan scaling process. 18. The method according to claim 16, wherein the scaling process is performed in a process of collectively managing an interface between the digital signal and a bus and performing a pre-process on a digital image signal. 18. The image processing method according to item 17. 19. The scaling process is performed by a main scanning scaling process and a sub-scan scaling process, and the sub-scan scaling process collectively manages an interface between the digital signal and a bus. The main scanning is performed in a process of performing pre-processing on a digital image signal, and the main scanning scaling process is performed in a programmable image process of performing image processing on the digitally converted image signal. 17. The image processing method according to claim 16, wherein: 20. The scaling process is performed by a main scanning scaling process and a sub-scan scaling process, and the main scanning scaling process collectively manages the interface between the digital signal and the bus. Then, the sub-scanning magnification processing is performed in the programmable image processing for performing image processing on the digitally converted image signal. 17. The image processing method according to claim 16, wherein: 21. Correction of data non-uniformity caused by an optical system of a digitally converted image signal, wherein the red, green,
Correct the line synchronization deviation of the image signal that has been separated into three colors into blue,
3. The method according to claim 1, further comprising controlling a timing of outputting the two-color converted image signal as a visualized image.
0. The image processing method according to any one of 0. 22. A color image is input, and said image is red,
Image data input means for separating the image into three colors of green and blue, and converting the color image into color image data for each color; and color conversion for converting the color image into two-color image data consisting of black and a designated color other than black Means, scaling means for scaling the image signal converted to the two-color image, image data output means for outputting image data as a visualized image, and processing of the image data created by the image data input means. A programmable image processing means for executing a plurality of types of image processing, an image data storage unit for storing the image data, and an image memory control means for collectively managing access of image data to the image data storage unit, A composite device having a plurality of functions, comprising: an image processing apparatus including: an image data control unit configured to collectively manage transfer of the image data between the units. In the image data as image storage in the storage unit and the data transfer amount between the plurality of unit cross is optimized, the composite apparatus characterized in that a part or the whole of the zooming means. 23. The multifunction apparatus according to claim 22, wherein said plurality of functions are at least two of a facsimile machine, a copier, and a printer. 24. The multi-function apparatus according to claim 22, wherein said scaling means comprises a main scanning scaling means and a sub-scanning scaling means. 25. The image forming apparatus according to claim 22, wherein said scaling means is provided in said image data control means.
25. The composite device according to 24. 26. The magnification changing means comprises a main scanning magnification changing means and a sub-scanning magnification changing means, wherein the sub-scanning magnification changing means is provided in the image data control means. 24. The multi-function apparatus according to claim 22, wherein a scaling unit for scanning is provided in the image processing unit. 27. The magnification changing means comprises a main scanning magnification changing means and a sub-scanning magnification changing means, wherein the main scanning magnification changing means is provided with the sub-scanning magnification changing means. 24. The multifunction apparatus according to claim 22, wherein said multi-function device is provided in said image processing means, and said sub-scanning magnification changing means is provided in said image processing means. 28. A means for correcting non-uniformity of data resulting from an optical system of a digitally converted image signal, and a means for correcting a line synchronization deviation of an image signal which is separated into three colors of red, green and blue. 28. The multifunction apparatus according to claim 22, further comprising: means for controlling timing for outputting the two-color converted image signal as a visualized image. 29. A function as at least one of a facsimile machine, a copying machine, and a printer, a color image commonly used by these functions is input, and the image is separated into three colors of red, green, and blue. Image data input means for converting the color image into color image data for each color; color conversion means for converting the color image into two-color image data consisting of black and a designated color other than black; Scaling means for scaling the converted image signal, image data output means for outputting the image data as a visualized image, and processing of the image data created by the image data input means to execute a plurality of types of image processing Programmable image processing means,
An image data storage unit that stores the image data, an image memory control unit that collectively manages the access of the image data to the image data storage unit, and a batch management of the transfer of the image data between the units. In a complex system including an image processing apparatus configured to include image data control means, a processing position at which image accumulation in the image data storage unit and data transfer amount between the plurality of means are optimized. Wherein a part or all of the scaling means is arranged. 30. The multi-function system according to claim 29, wherein said scaling means comprises a main scanning scaling means and a sub-scan scaling means. 31. The composite system according to claim 29, wherein said scaling means is provided in said image data control means. 32. The magnification changing means comprises a main scanning magnification changing means and a sub-scanning magnification changing means, wherein the sub-scanning magnification changing means is provided in the image data control means. 31. The combined system according to claim 29, wherein a scanning magnification changing unit is provided in the image processing unit. 33. The magnification changing means comprises a main scanning magnification changing means and a sub-scanning magnification changing means, wherein the main scanning magnification changing means is provided with the sub-scanning magnification changing means. 31. The composite system according to claim 29, wherein the sub-scanning magnification changing unit is provided in the image processing unit. 34. A means for correcting non-uniformity of data resulting from an optical system of a digitally converted image signal, and a means for correcting line synchronization deviation of an image signal which has been separated into three colors of red, green and blue. The composite system according to any one of claims 29 to 33, further comprising: means for controlling timing of outputting the two-color-converted image signal as a visualized image. 35. A recording medium storing a processing program for implementing the image processing method according to claim 15, wherein the read color image is red,
A processing program for separating three colors into green and blue, a processing program for converting the image signal into a digital image signal and inputting the same, and a processing for converting the color image into a two-color image composed of black and a designated color other than black A program, a processing program for temporarily storing the image in a memory, a processing program for scaling the image signal converted into the two-color image by a scaling process of a main scan and a scaling process of a sub-scan, A processing program for outputting image signals converted into two-color images as visualized images, a processing program for performing programmable image processing on the digitally converted image signals, and an interface between digital signals and a bus And a processing program for performing preprocessing on the digital image signal, and data resulting from the optical system of the digitally converted image signal. The processing program for correcting the non-uniformity, the processing program for correcting the line synchronization deviation of the image signal separated into three colors of red, green, and blue, and the timing for outputting the two-color-converted image signal as a visualized image A controlling program, and the scaling process is performed in a process of collectively managing an interface between the digital signal and a bus and performing a pre-process on a digital image signal, or The main scanning scaling process is performed in the process of pre-processing the digital image signal by collectively managing the interface between the digital signal and the bus, and the sub-scan scaling process is performed by the digital conversion. A recording medium characterized by being executed in a process of performing a programmable image process for performing an image process on a processed image signal.