CN1297303A

CN1297303A - Image processing method and device

Info

Publication number: CN1297303A
Application number: CN00130929A
Authority: CN
Inventors: 樗木杉高; 高桥佑二; 波塚义幸; 宫崎秀人; 野水泰之; 川本启之; 石井理惠; 刀根刚治; 福田拓章; 宫崎慎也; 吉泽史男
Original assignee: Ricoh Co Ltd
Current assignee: Ricoh Co Ltd
Priority date: 1999-11-10
Filing date: 2000-11-09
Publication date: 2001-05-30
Anticipated expiration: 2020-11-09
Also published as: CN1186919C; KR20010051552A; KR100386095B1; JP2001144920A

Abstract

The present invention relates to image processor, image processing method and computer-readable recording medium for recording program to allow computer to excute the method. A read unit 201 and a sensor board unit 202 read an original and convert the read image into image data, and an image data control section 203 extracts only image data that can contribute to forming of an image among the converted image data and stores the extracted image data to a memory module 222. Thereby it can reduce a transfer quantity of image data of a data bus and a storage capacity of a frame memory or a storage capacity of an auxiliary storage device required to store the image data.

Description

Image processing method and device thereof

The present invention relates to image is formed on digital copier on the transfer paper, have the image processing of the compounding machine etc. of copy function, facsimile function, printing functionality, scan function etc., relate in particular to the view data of depositing during only reading images forms and image is formed on image processing method, image processing apparatus and storage on the transfer paper makes computer carry out the recording medium that can read by computer of above-mentioned image processing method program according to DID.

The digital copier that had used since in the past for example has, and the spy opens the disclosed device of flat 9-186836 communique.When this digital copier reads original image, the image transform of reading original copy is become view data, with the image data storage of one page part or some pages of parts in auxilary units such as diskette unit or hard disk assembly, when reproducing original image, be transferred to frame memory with being stored in one page part of auxilary unit or the view data of some pages of parts, send the view data that this passes on, the original image that read in the printshop page by page to print drivers.

The control system of above-mentioned digital copier as shown in figure 18.This control system is provided with CPUl, CPU2, main storage 3, the interconnective CPU bus 30 between CPUl, CPU2, main storage 3 that is used for control figure formula photocopier molar behavior.Needed style of calligraphy data etc. when above-mentioned main storage 3 is used to store the application program carried out by CPU or printed original image read above-mentioned application program or style of calligraphy data etc. from auxilary unit 21 and store into the main storage 3.

CPU bus 30 is connected with PCI bus 31 by PCI electric bridge 4, is connected with PCI bus 32 by PCI electric bridge 5.CPU bus 30 also is connected with PCI bus controller 6, and this PCI bus controller 6 is connected with PCI electric bridge 5 with PCI electric bridge 4.

PCI bus controller 6 carries out following control: by the mediation (competition mediation) between PCI electric bridge 4 PCI bus 31 that keeps and the PCI bus 32 that keeps by PCI electric bridge 5, and with the corresponding control of PCI bus communication control procedure.

Be connected with display controller 7, the key panel controller 8 that is used to control key panel 9 actions, the FDHD interface controller 11 that is used to control 21 actions of auxilary units such as diskette unit or hard disk assembly that are used to control display unit 10 actions on the PCI bus 31, be used for master computer (not having to illustrate) between carry out serial communication or parallel communications serial parallel interface controller 12, be used for and region network etc. between the communication network interface controller 13 that communicates.

Also be connected with dram controller 14 on PCI bus 31, this dram controller 14 is used to produce frame memory 16 is carried out the address that view data writes or reads, the renewal of the DRAM of control configuration frame memory 16.

On the other hand, on PCI bus 32, be connected with dram controller 15, dma controller 18 and SISC interface 20.Dram controller 15 is used to produce frame memory 17 is carried out the address that view data writes or reads, the renewal of the DRAM of control configuration frame memory 17; Dma controller 18 is used to control the passing on of view data of the DRAM of configuration frame memory 16,17; SISC interface 20 is used to control and does not have being connected of illustrated SISC bus.

Dram controller 14 is connected with dma controller 18, video interface 19, and dram controller 15 also is connected with dma controller 18, video interface 19.Dma controller 18 can directly transfer to video interface 19 by the control view data that will be deployed in the frame memory 16 of passing on of DRAM, or directly transfers to video interface 19 by the view data that control will be deployed in the frame memory 17 of passing on of DRAM.The view data of being passed on by video interface 19 is sent to print drivers (not diagram).

Below, the action of the digital copier in the past of above-mentioned formation when reading some pages of original images and printing these original images is described.Wait the view data of importing by communication network interface controller 13 that comprises character code or control command to import CPU1 or CPU2 from master computer (not diagram) by serial parallel interface controller 12 or from region network (not diagram) through PCI bus 31, PCI electric bridge 4 and CPU bus 30, decoded at CPU1 or CPU2, for example be deployed on the frame memory 17 as bit map data.

If the bit map data of one page image is deployed on the frame memory 17, CPU1 just starts dma controller 18, and the bit map data of this one page part image is transferred to video interface 19 from frame memory 17.The original image that print drivers (not having diagram) reads according to the bit map data printshop of passing on.

; in the digital copier in the past of above-mentioned formation; the general image of the original size that read must be deployed on the frame memory 17 as bit map data; some pages of original image occasions that read when the printshop, bit map data that must near minority page or leaf image is deployed on the frame memory 17.

For example, the original size that is read is that (occasion of 210mm * 297mm), if want the integral image of 8 of printing points density d pi, each pixel of tonal gradation, its image data amount is in the actual 35MB (Mbytes) that reaches of one page for the A4 size.When several pages of integral image of printing, the actual image data amount that reaches above-mentioned several times of its image data amount.

When the surface that image is printed on transfer paper and reverse side are so-called double-sided copying, after the bit map datas of surface and two pages of images of reverse side are deployed in frame memory 16 or 17, transfer to video interface 19, print drivers is printed the surface and the reverse side of transfer paper continuously.

During double-sided copying, if original copy is that even number is opened, the surface of transfer paper and reverse side necessarily are printed on original image, and original copy is that odd number is opened occasion, and the reverse side of last transfer paper becomes blank sheet of paper.This occasion also will be deployed on frame memory 16 or 17 as the bit map data of the reverse side image of blank sheet of paper.

Therefore, frame memory 16 and 17 must have such memory capacity: have to a certain degree and can store above-mentioned such lot of data under the state of leeway.In addition, it is also very big above-mentioned mass data to be transferred to the data amount of passing on of PCI bus 31,32 of video interface 19.So, the high performance CPU of inevitable requirement.Though high price is duplicated function and is satisfied above-mentioned requirements, is difficult to satisfy above-mentioned requirements in the low price photocopier.

The present invention puts forward in view of the existing problem of above-mentioned prior art, first purpose of the present invention is, image processing method is provided, image processing apparatus and storage make computer carry out the recording medium that can be read by computer of above-mentioned image processing method program, the view data amount of passing in the data bus when maybe this view data being stored in for the moment auxilary units such as floppy disk or hard disc when its view data that can reduce trusted transfers to frame memory, and then, can reduce the memory capacity of frame memory of the necessity that is used to store this view data or the memory capacity of auxilary unit.

Second purpose of the present invention is, provide image processing method, image processing apparatus and storage to make computer carry out the recording medium that can read by computer of above-mentioned image processing method program, when maybe this view data being stored in for the moment auxilary unit such as floppy disk or hard disc when its view data that can reduce trusted transfers to frame memory or the view data amount of passing on the data bus of printing image occasion when frame memory reads view data, and then, can reduce the memory capacity of the frame memory of the necessity that is used to store this view data.

The 3rd purpose of the present invention is, provide image processing method, image processing apparatus and storage to make computer carry out the recording medium that can read by computer of above-mentioned image processing method program, it can reduce will carry out view data that access the produces CPU treating capacity when being deployed in frame memory by the memory to storage character code and style of calligraphy information, the view data amount of passing in data bus when minimizing is transferred to frame memory with this view data, and then, can reduce the memory capacity of the frame memory of the necessity that is used to store this view data.

The 4th purpose of the present invention is, provide image processing method, image processing apparatus and storage to make computer carry out the recording medium that can read by computer of above-mentioned image processing method program, when carrying out double-sided copying the final page as odd number being opened original copy, do not need the bit map of blank sheet of paper is deployed on the frame memory, by near the white view data of the local surcharge of print drivers, can reduce the data amount of passing in the data bus, the CPU treating capacity when minimizing is deployed in frame memory with view data.

To achieve these goals, the present invention proposes a kind of image processing apparatus, it is characterized in that, is provided with:

The view data input unit of input image data;

The view data draw-out device in the image-region of the view data by the input of above-mentioned view data input unit, only extracts predefined or according to the view data in the effective image-region of above-mentioned view data content decision;

Image data storage apparatus, the view data that storage is extracted by above-mentioned view data draw-out device.

Like this, can reduce, and then can reduce the memory capacity of the necessary image data storage device that is used to store this view data the view data amount of passing on of trusted view data when image data storage apparatus passes on.

According to image processing apparatus of the present invention, it is characterized in that image processing apparatus further is provided with:

The view data reading device reads the view data of being stored by above-mentioned image data storage apparatus;

The view data generation device, additional white view data produces the view data of transferred image size on the view data that is read by above-mentioned view data reading device.

Like this, can reduce view data the pass on amount of trusted view data when image data storage apparatus passes on and when forming the transferred image occasion, and then can reduce the memory capacity of the necessary image data storage device that is used to store this view data from the image data storage apparatus reads image data.

To achieve these goals, the present invention proposes another kind of image processing apparatus, it is characterized in that, is provided with:

The image data storage apparatus of storing image data;

The view data reading device, in the image-region of the view data by the storage of above-mentioned image data storage apparatus, only reading pre-set or according to the view data in the effective image-region of above-mentioned view data content decision;

Like this, can reduce the treating capacity of the view data generation device (CPU) of the view data that is used to produce the transferred image size, reduce the view data amount of passing on when passing on this view data.

According to image processing apparatus of the present invention, it is characterized in that when the view data that the view data reading device reads was the blank sheet of paper view data, the view data generation device only used white view data to produce the view data of transferred image size.

Like this, when the view data that the view data reading device reads is the blank sheet of paper view data, can reduce the treating capacity of the view data generation device (CPU) of the view data that is used to produce the transferred image size, reduce the view data amount of passing on when passing on this view data.

To achieve these goals, the present invention proposes a kind of image processing method, it is characterized in that, comprises following operation:

The input operation of input image data;

View data extracts operation, in the image-region of the view data by above-mentioned input operation input, only extracts predefined or according to the view data in the effective image-region of above-mentioned view data content decision;

The image data storage operation, storage is extracted the view data that operation extracts by above-mentioned view data.

According to image processing method of the present invention, it is characterized in that image processing method further comprises:

View data reads operation, reads the view data of being stored by above-mentioned image data storage operation:

View data produces operation, is being read the view data that additional white view data on the view data that operation reads produces the transferred image size by above-mentioned view data.

Like this, the view data amount of passing in the time of reducing when passing on the trusted view data and form transferred image occasion reads image data, and then can reduce the memory capacity of the necessary image data storage device that is used to store this view data.

To achieve these goals, the present invention proposes another kind of image processing method, it is characterized in that, comprises following operation:

The image data storage operation of storing image data;

View data reads operation, in the image-region of the view data by the storage of above-mentioned image data storage operation, only reading pre-set or according to the view data in the effective image-region of above-mentioned view data content decision;

Like this, the necessary image data that can reduce the view data that is used to produce the transferred image size produce the treating capacity of handling, and reduce the view data amount of passing on when passing on this view data.

According to image processing method of the present invention, it is characterized in that when above-mentioned view data read view data that operation reads and is the blank sheet of paper view data, above-mentioned view data produced operation and only uses white view data to produce the view data of transferred image size.

Like this, when the view data that is read was the blank sheet of paper view data, the necessary image data that can reduce the view data that is used to produce the transferred image size produced the treating capacity of handling, and reduce the view data amount of passing on when passing on this view data.

To achieve these goals, the present invention proposes a kind of recording medium, can be read by computer; It is characterized in that the program of the invention described above image processing method is carried out in this recording medium storage by computer.

The following describes effect of the present invention.

According to image processing apparatus of the present invention, view data input unit input image data, the view data draw-out device only extracts predefined in the image-region of the view data of above-mentioned view data input unit input or according to the view data in the effective image-region of above-mentioned view data content decision, the view data that the image data storage apparatus storage is extracted by above-mentioned view data draw-out device, so, compare with the whole trusted view data occasions of storage, can reduce view data the pass on amount of trusted view data when image data storage apparatus passes on, and then can reduce the memory capacity as image data storage apparatus such as floppy disk or hard discs of the necessity that is used to store this view data.The image processing apparatus of low-cost and high-performance can be provided like this.

According to image processing apparatus of the present invention, the view data reading device reads the view data of being stored by above-mentioned image data storage apparatus, view data generation device additional white view data on the view data that is read by above-mentioned view data reading device produces the view data of transferred image size, so, compare with the view data occasion that reads the transferred image size from image data storage apparatus, can reduce view data the pass on amount of trusted view data when image data storage apparatus passes on and when forming the transferred image occasion, and then can reduce the memory capacity of the necessary image data storage device that is used to store this view data from the image data storage apparatus reads image data.The image processing apparatus of low-cost and high-performance can be provided like this.

According to image processing apparatus of the present invention, the image data storage apparatus storing image data, the view data reading device in the image-region of the view data by the storage of above-mentioned image data storage apparatus only reading pre-set or according to the view data in the effective image-region of above-mentioned view data content decision, view data generation device additional white view data on the view data that is read by above-mentioned view data reading device produces the view data of transferred image size, can reduce the treating capacity of the view data generation device (CPU) of the view data be used to produce the transferred image size, reduce the view data amount of passing on when passing on this view data.The image processing apparatus of low-cost and high-performance can be provided like this.

According to image processing apparatus of the present invention, when the view data that above-mentioned view data reading device reads is the blank sheet of paper view data, above-mentioned view data generation device only uses white view data to produce the view data of transferred image size, so, when as occasions such as double-sided copyings, reverse side does not have the transferred image data, when the view data that the view data reading device reads is the blank sheet of paper view data, with in advance the blank sheet of paper data are deployed in the image data storage apparatus occasion and compare, can reduce the treating capacity of the view data generation device (CPU) of the view data be used to produce the transferred image size, reduce the view data amount of passing on when passing on this view data.

According to image processing method of the present invention, view data input operation input image data, view data extracts operation in the image-region of the view data of importing by above-mentioned input operation, only extract predefined or according to the view data in the effective image-region of above-mentioned view data content decision, the storage of image data storage operation is extracted the view data that operation extracts by above-mentioned view data, so, compare with the whole trusted view data occasions of storage, can reduce view data the pass on amount of trusted view data when image data storage apparatus passes on, and then can reduce the memory capacity as image data storage apparatus such as floppy disk or hard discs of the necessity that is used to store this view data.

According to image processing method of the present invention, view data reads operation and reads the view data of being stored by above-mentioned image data storage operation, view data produces operation and is being read the view data that additional white view data on the view data that operation reads produces the transferred image size by above-mentioned view data, so, compare with the view data occasion that reads the transferred image size from image data storage apparatus, can reduce view data the pass on amount of trusted view data when image data storage apparatus passes on and when forming the transferred image occasion, and then can reduce the memory capacity of the necessity that is used to store this view data from the image data storage apparatus reads image data.

According to image processing method of the present invention, image data storage operation storing image data, view data read operation in the image-region of the view data by the storage of above-mentioned image data storage operation only reading pre-set or according to the view data in the effective image-region of above-mentioned view data content decision, view data produces operation and is being read the view data that additional white view data on the view data that operation reads produces the transferred image size by above-mentioned view data, so, can reduce the treating capacity of the view data generation device (CPU) of the view data be used to produce the transferred image size, reduce the view data amount of passing on when passing on this view data.

According to image processing method of the present invention, when above-mentioned view data reads view data that operation reads and is the blank sheet of paper view data, above-mentioned view data produces operation and only uses white view data to produce the view data of transferred image size, so, when as occasions such as double-sided copyings, reverse side does not have the transferred image data, when the view data that the view data reading device reads is the blank sheet of paper view data, with in advance the blank sheet of paper data are deployed in the image data storage apparatus occasion and compare, can reduce the treating capacity of the view data generation device (CPU) of the view data be used to produce the transferred image size, reduce the view data amount of passing on when passing on this view data.

According to recording medium of the present invention, storage can be read implementation by computer by the program of computer implementation the invention described above image processing method, and like this, the invention described above image processing method can be by computer realization.

Brief Description Of Drawings is as follows:

Fig. 1 is a formation block diagram of functionally representing the image processing apparatus of the embodiment of the invention;

Fig. 2 is the block diagram that the hardware of the image processing apparatus of the expression embodiment of the invention constitutes an example;

Fig. 3 is the block diagram of processing summary of image processing program of the image processing apparatus of the expression embodiment of the invention;

Fig. 4 is the block diagram of processing summary of view data control part of the image processing apparatus of the expression embodiment of the invention;

Fig. 5 is the block diagram of processing summary of video data control part of the image processing apparatus of the expression embodiment of the invention;

Fig. 6 is the block diagram of processing summary of image memory access control part of the image processing apparatus of the expression embodiment of the invention;

Fig. 7 is the formation block diagram of fax control assembly of the image processing apparatus of the expression embodiment of the invention;

Fig. 8 be the expression embodiment of the invention up to the process chart that stores the image on memory module;

Fig. 9 be the expression embodiment of the invention up at image-forming assembly printing treatment of picture flow chart;

Figure 10 be the expression embodiment of the invention up to being stored in the process chart of memory module from the image of computer;

Figure 11 be the expression embodiment of the invention up to treatment of picture flow chart in image-forming assembly printing memory module;

Figure 12 takes out the actual process chart that can place on the view data that forms image from the view data by reading assembly and the input of sensor board assembly;

Figure 13 is the logical circuit of being located at the view data control part of the embodiment of the invention, wherein, Figure 13 A is the output logic loop of the main scanning direction control signal of effective image-region, and Figure 13 B is the output logic loop of the sub scanning direction control signal of effective image-region;

Figure 14 represents the graph of a relation of reading images zone and effective image-region;

Figure 15 takes out the process chart that the view data of effective image-region is printed in the view data from be stored in memory module;

Figure 16 is the logical circuit of being located at the view data control part of the embodiment of the invention, wherein, Figure 16 A is the output logic loop of main scanning direction control signal that is used to form the view data of transferred image size, and Figure 16 B is the output logic loop of sub scanning direction control signal that is used to form the view data of transferred image size;

Figure 17 represents the graph of a relation of transferred image zone and effective image-region;

Figure 18 represents that the summary of the control system of general digital copier constituted block diagram in the past.

With reference to the accompanying drawings, describing image processing method of the present invention, image processing apparatus and storage in detail makes computer carry out the preferred embodiment of the recording medium that can be read by computer of above-mentioned image processing method program.

The image processing apparatus principle of present embodiment is described earlier.Fig. 1 is a formation block diagram of functionally representing the image processing apparatus of the embodiment of the invention.In Fig. 1, image processing apparatus comprises five assemblies shown below.

So-called five assemblies are meant that the video memory of image reading assembly 101, the control store image of view data control assembly 100, reading images writes or the image memory gate stack 102 of reads image data, the image processing modules 103 that view data is imposed image processing such as processing editing, the image that view data is write transfer paper etc. (printing) write assembly 104.

With view data control assembly 100 is the center, and image reading assembly 101, image memory gate stack 102, image processing modules 103 and image write assembly 104 and be connected with view data control assembly 100 respectively.

Below above-mentioned each assembly is described respectively.

View data control assembly 100

The processing of being undertaken by view data control assembly 100 can be listed below, for example:

(1) bus that is used to improve view data passes on the efficiency in data compression and handles (once compression)

(2) packed datas pass on processing

(3) image is synthetic handles (can synthesize the view data from some assemblies, be also included within synthesizing on the data bus)

(4) image moves processing (image of main scanning and sub scanning direction moves)

(5) image-region enlarges processing (image-region can be enlarged any amount toward periphery)

(6) image becomes doubly processing (for example 50% or 200% fixedly change doubly)

(7) parallel bus interface is handled

(8) the serial bus interface is handled (with the interface of aftermentioned processing controller 211)

(9) format conversion of parallel data and serial data is handled

(10) handle with the interface of image reading assembly 101

(11) handle with the interface of image processing modules 103

Image reading assembly 101

The processing of being undertaken by image reading assembly 101 can be listed below, for example:

(1) reads processing by the original copy of optical system is catoptrical

(2) in the processing that is transformed into the signal of telecommunication of CCD (Charge Coupled Device, below brief note is for CCD)

(3) in the digitized processing of A/D converter

(4) (the illumination intensity of light source skewness being carried out the processing of revisal) handled in the light and shade revisal

(5) (carrying out the processing of revisal to reading the concentration characteristic that is) handled in scanning γ revisal

Image memory gate stack 102

The processing of being undertaken by image memory gate stack 102 can be listed below, for example:

(1) with the interface control and treatment of system controller

(2) parallel bus control and treatment (with the interface control and treatment of parallel bus)

(3) network control is handled

(4) serial bus control and treatment (control and treatment of some external series gateway)

(5) internal bus interface control and treatment (handling with the commands for controlling of operating portion) is used to ROM, the RAM that system controller is started, the access control of style of calligraphy data is handled)

(6) local bus control and treatment (being used to ROM, the RAM that system controller is started, the access control processing of style of calligraphy data)

(7) the action control and treatment of memory module (memory module write/read control and treatment)

(8) (to the processing of mediating from the access requirement of some assemblies) handled in the access control of memory module

(9) compression/extension of data is handled (processing of carrying out in order effectively to utilize memory that is used to reduce data volume)

(10) picture editting handles (data, the revolution processing of view data, the image on memory of removing storage area synthesize processing etc.)

Image processing modules 103

The processing of being undertaken by image processing modules 103 can be listed below, for example:

(1) (the illumination intensity of light source skewness being carried out the processing of revisal) handled in the light and shade revisal

(2) (carrying out the processing of revisal to reading the concentration characteristic that is) handled in scanning γ revisal

(3) the MTF revisal is handled

(4) smoothing processing

(5) any change of main scanning direction is doubly handled

(6) concentration conversion (gamma transformation is handled: corresponding with concentration scale)

(7) simple many-valuedization processing

(8) simple double quantification is handled

(9) error diffusion is handled

(10) vibration processing

(11) some configuration bit phase control and treatment (point of keeping right, keep left a little)

(12) removing isolated point handles

(13) image field separating treatment (judge look, judge attribute, adapt to and handle)

(14) density transform is handled

Image writes assembly 104

Writing the processing that assembly 104 carried out by image can be listed below, for example:

(1) edge-smoothing is handled (edge revisal processing)

(2) revisal of configuration is handled again

(3) the pulse control and treatment of picture signal

(4) format conversion of parallel data and serial data is handled

The hardware of digital compounding machine constitutes

The image processing apparatus that the following describes present embodiment constitutes the hardware formation of digital compounding machine occasion.Fig. 2 is the block diagram that the hardware of the image processing apparatus of the expression embodiment of the invention constitutes an example.

In Fig. 2 block diagram, the image processing apparatus of present embodiment is provided with reading assembly 201, sensor board assembly 202, view data control part 203, image processor 204, video data control part 205, image-forming assembly 206.The image processing apparatus of present embodiment also is provided with cyclelog 211, RAM212, the ROM213 that is connected with serial bus 210.

The image processing apparatus of present embodiment is provided with image memory access control part 221, memory module 222, fax control assembly 224 and the system controller 231 that is connected with image memory access control part 221, RAM232, ROM233, guidance panel 234 by parallel bus 220.

At this, the relation of above-mentioned each formation portion and each assembly 100-104 shown in Figure 1 is described.Promptly, realize the function of image reading assembly 101 shown in Figure 1 by reading assembly 201 and sensor board assembly 202.Equally, realize the function of view data control assembly 100 by view data control part 203; Realize the function of image processing modules 103 by image processor 204.

Equally, realize that by video data control part 205 and image-forming assembly 206 image writes the function of assembly 104; Realize the function of image memory gate stack 102 by image memory access control part 221 and memory module 222.

Below, specify each formation portion.

The reading assembly 201 that reads original image with optical mode is made of lamp, speculum and lens etc., by speculum and lens with the reverberation light harvesting of light irradiation original copy to photo detector.

Photo detector, for example CCD carry on sensor board assembly 202, are transformed into the signal of telecommunication at CCD, are transformed into after the digital signal as the view data of the signal of telecommunication again, send from sensor board assembly 202.

The view data of delivering letters from sensor board assembly 202 is at view data control part 203 trusteds.Each inscape of Fig. 2 and the transmission of the view data between data bus are all by 203 controls of view data control part.

View data control part 203 carries out the passing on of view data between sensor board assembly 202, parallel bus 220 and the image processor 204, and carries out view data and communicate by letter between cyclelog 211 and the system controller 231 of controlling image processing apparatus integral body.RAM212 uses the boot of ROM213 stored program controller 211 etc. as the service area of cyclelog 211.

The view data of delivering letters from sensor board assembly 202 is forwarded to image processor 204 through view data control part 203, to because of optical system and the Signal Degrade (reading the Signal Degrade that is) that is transformed in the digital signal processes to be produced carry out revisal, deliver letters to view data control part 203 once more.

Image memory access control part 221 control writing or reading the view data of memory module 222, also the action of each inscape of being connected with parallel bus 220 of control.RAM232 uses the boot of ROM233 controller system memory 231 etc. as the service area of system controller 231.

The processing that guidance panel 234 input is undertaken by image processing apparatus, for example kind of Chu Liing (duplicate, fax is delivered letters, image reads, printing etc.) and processing number etc.Like this, can the input image data control information.Content about fax control assembly 224 will be narrated in the back.

Below, illustrate respectively institute's reading images is stored in the operation that memory module 222 is utilized again, and the operation that is not stored in memory module 222.As the example that is stored in memory module 222, an original copy is being duplicated several occasions, following method is arranged: reading assembly 201 is only moved once, and the original image storage that will read by reading assembly 201 reads the view data of being stored several times in memory module 222.

As the example that is not stored in memory module 222, an original copy is only being duplicated an occasion, following method is arranged: reading assembly 201 is only moved once, will intactly regenerate by the original image data that reading assembly 201 reads.At this moment, owing to the original image data that read intactly can be regenerated, so, there is no need to carry out access by 221 pairs of memory modules of image memory access control part 222.

Be not stored in memory module 222 occasions, the view data that transfers to view data control part 203 from image processor 204 is returned image processor 204 from view data control part 203 once more.Carry out image quality at image processor 204 and handle, the brightness data of CCD gained that will be by sensor board assembly 202 is transformed into the area tonal gradation.

View data after image quality is handled is transferred to video data control part 205 from image processor 204.Relate to the reprocessing of a configuration and be used to reproduce a little pulse control for the signal that is transformed into the area tonal gradation, after this, reproduced picture is printed on the transfer paper at image-forming assembly 206.

The flow direction of the view data of occasions such as the additional treatments that the following describes when reading the view data that is stored in the memory module 222 to be carried out, the revolution of for example image direction, image are synthetic.The view data that transfers to view data control part 203 from image processor 204 is delivered letters to image memory access control part 221 through parallel bus 220 from view data control part 203.

At this, carry out the access control of view data and memory module 222 according to the control of system controller 231, the printing of outer computer 223 is with the expansion of data, and the compression or the stretching, extension that are used for effectively utilizing the view data of memory module 222.

The view data that is sent to image memory access control part 221 is stored in after data compression in the memory module 222, reads the view data of this storage as required.The view data that is read is stretched, and is returned to original view data, gets back to view data control part 203 from image memory access control part 221 through parallel bus 220.

After image processor 204 passes on, carry out that image quality is handled and from view data control part 203, reproduced picture is printed on the transfer paper at image-forming assembly 206 in the pulse control of video data control part 205.

In view data flows, control by parallel bus 220 with at the bus of view data control part 203, realize the function of digital compounding machine.Fax is delivered letters, and to be the view data that will be read carry out the function that image processing is passed on to fax control assembly 224 through view data control part 203 and parallel bus 220 again at image processor 204 to function.Be used to be sent to the data conversion of communication network at fax control assembly 224, deliver letters to public loop line (PN) 225 as facsimile data.

On the other hand, be transformed into view data at fax control assembly 224, pass on to image processor 204 through parallel bus 220 and view data control part 203 from the facsimile data of public loop line (PN) 225 trusteds.This occasion is not made special image quality and is handled, and put configuration again and pulse is controlled at video data control part 205, at image-forming assembly 206 reproduced picture is printed on the transfer paper.

Send under trusted function, the printing output function concurrent activity situation at some operations, for example copy function, fax, in the usufructuary distribution of system controller 231 and cyclelog 211 control reading assemblies 201, image-forming assembly 206 and parallel bus 220.

Flowing of cyclelog 211 control view data, system controller 231 control system integral body, the startup of each device of management.The function selecting of digital compounding machine is selected input at guidance panel 234, sets the contents processing of copy function, facsimile function etc.

System controller 231 intercoms by parallel bus 220, view data control part 203 and serial bus 210 mutually with cyclelog 211.Specifically, be used for the data format conversion with the data-interface of parallel bus and serial bus in view data control part 203, system controller 231 and cyclelog 211 communicate.

Image processing modules 103/ image processor 204

The following describes the processing summary of the image processor 204 of composing images processing components 103.Fig. 3 is the block diagram of processing summary of image processor 204 of the image processing apparatus of the expression embodiment of the invention.

In Fig. 3 block diagram, image processor 204 comprises the 1st input I/F301, scan image handling part the 302, the 1st output I/F303, the 2nd input I/F304, image quality handling part the 305, the 2nd output I/F306.

In the above-described configuration, the view data that is read is delivered letters to scan image handling part 302 from the 1st input interface (I/F) 301 of image processor 204 by sensor board assembly 202 and view data control part 203.

In this image processing purpose is to carry out revisal for the deterioration to the view data that read, specifically, carries out light and shade revisal, scanning γ revisal, MTF revisal etc.Do not belong to the expansion of revisal processing yet or dwindle processing.If the revisal processing of institute's reads image data finishes, by the 1st output interface (I/F) 303 to view data control part 203 relays image data.

When being printed on the transfer paper,, carrying out the area gray scale at image quality handling part 305 and handle by the 2nd input I/F304 trusted.View data after image quality is handled is exported to video data control part 205 or view data control part 203 by the 2nd output I/F306.

The area gray scale of image quality handling part 305 is handled concentration conversion process, vibration processing, error diffusion processing etc., and the area approximation of half-tone information is main processing.The view data of handling by scan image handling part 302 is stored in the memory module 222 in advance, can confirm various reproduced pictures by the image quality processing that change image quality handling part 305 is carried out.

For example,, or change the line number that vibrates matrix, be easy to change the atmosphere of reproduced picture by the concentration of change reproduced picture.This occasion whenever the change image quality is handled, there is no need from reading assembly 201 change images, by reading the view data that is stored in the memory module 222, can inferiorly implement different image quality rapidly to same view data arbitrarily and handle.

The single sweep occasion is implemented scan image processing and gray scale together and is handled, to 203 outputs of view data control part.Contents processing can change to programmable.Switching of handling and handling procedure change etc. manage in commands for controlling portion 307 by serial i/F308.

View data control assembly 100/ view data control part 203

The following describes the processing summary of the view data control part 203 of composing images Data Control assembly 100.Fig. 4 is the block diagram of processing summary of view data control part 203 of the image processing apparatus of the expression embodiment of the invention.

In Fig. 4 block diagram, the view data that view data input and output control part 401 receives from sensor board assembly 202 sends view data to image processor 204.Promptly, we can say that view data input and output control part 401 is the inscapes that are used to connect image reading assembly 101 and image processing modules 103 (image processor 204), be the input and output portion that is sent to specially image processing modules 103 for the view data that image reading assembly 101 is read.

View data input control part 402 is received in image processor 204 to reading the view data that the Signal Degrade that is carries out revisal.In order to improve the efficient of passing on of parallel bus 220, the view data of above-mentioned institute trusted is carried out data compression process in data compression portion 403.Compressed view data this after data conversion portion 404 is sent to parallel bus 220 by parallel data I/F405.

From the view data of parallel bus 220 interfaces,,, carry out the data stretching, extension there and handle so be sent to data extending part 406 through data conversion portion 404 owing to be compressed for bus passes on by parallel data I/F405 input.Pass on to image processor 204 at view data output control part 407 through the view data that stretches.

View data control part 203 also has the mapping function of parallel data and serial data.System controller 231 passes on data to parallel bus 220, cyclelog 211 is to serial bus 210 transfer of data.View data control part 203 carries out data conversion for two controller communications.

Serial data I/F is provided with the 1st serial data I/F408 and the 2nd serial data I/F409, the 1st serial data I/F408 is used for carrying out data processing by serial bus 210 and cyclelog 211, and the 2nd serial data I/F409 is used for carrying out data processing with image processor 204.And independently become a system between the image processor 204, can make interface smoothization with image processor 204.

Commands for controlling portion 410 is according to each the formation portion in the above-mentioned view data control part 203 of the commands for controlling of being imported and the action of each interface.

Image writes assembly 104/ video data control part 205

The following describes the processing summary that composing images writes the video data control part 205 of assembly 104.Fig. 5 is the block diagram of processing summary of video data control part 205 of the image processing apparatus of the expression embodiment of the invention.

In Fig. 5 block diagram, video data control part 205 appends processing for the view data of being imported according to the characteristic of image-forming assembly 206.Promptly, edge-smoothing handling part 501 handles by edge-smoothing and put configuration process again, pulse control part 502 is controlled in order to form the pulse of a little carrying out picture signal, outputs to image-forming assembly 206 through the view data of above-mentioned processing.

Be provided with the parallel data different and the format conversion function of serial data, even video data control part 205 monomers also can be corresponding with communicating by letter of cyclelog 211 with system controller 231 with the view data conversion.Promptly, the data conversion portion 505 by the mutual conversion of data that is provided with the parallel data I/F503 that send to receive parallel data, sends the serial data I/F504 that receives serial data, will be by parallel data I/F503 and serial data I/F504 trusted, the form of conversion two data.

Image memory gate stack 102/ image memory access control part 221

The following describes the processing summary of the image memory access control part 221 of composing images memory gate stack 102 parts.Fig. 6 is the block diagram of processing summary of image memory access control part 221 of the image processing apparatus of the expression embodiment of the invention.

In Fig. 6 block diagram, the interface of the view data of 221 management of image memory access control part and parallel bus 220, the control view data is to the access of memory module 222, be control store (writing) or read that control mainly is launched into view data from the code data of outer computer 223 inputs.

For this reason, image memory access control part 221 comprises parallel data I/F601, system controller I/F602, storage access control part 603, line buffer storage 604, video control part 605, data compression portion 606, data extending part 607, data conversion portion 608.

At this, the interface of the view data of the parallel data I/F601 management and the bus 220 that walks abreast.Storage access control part 603 control view data are to the access of memory module 222, i.e. control store (writing) or read.

The code data of input is stored the regional area of online buffer storage 604.According to the expansion processing instruction from system controller 231 by system controller I/F602 input, the code data of the online buffer storage 604 of above-mentioned storage is launched into view data at video control part 605.

The view data that is unfolded or by parallel data I/F601 from the image data storage of parallel bus 220 inputs memory module 222.This occasion, be selected to the view data of storage object in data conversion portion 608, in order to improve the memory service efficiency, in data compression portion 606 with data compression, with the address of storage access control part 603 managed storage modules 222, with image data storage (writing) in memory module 222.

Read the view data that is stored in the memory module 222 by reading the address in 603 controls of storage access control part, the view data that is read is stretched at data extending part 607.The view data that stretched is passed on occasion to parallel bus 220, and the view data that is stretched is passed on by parallel data I/F601.

The formation of fax control assembly 224

The following describes the formation of fax control assembly 224, Fig. 7 is the formation block diagram of fax control assembly 224 of the image processing apparatus of the expression embodiment of the invention.

In Fig. 7 block diagram, fax control assembly 224 send trusted portion 701 and exterior I/F702 to constitute by fax.At this, fax send trusted portion 701 that view data is transformed into communication form and delivers letters to outside loop line, or will be returned to view data from the data of outside, this view data is passed on by exterior I/F702 and parallel bus 220, in image-forming assembly 206 record printings.

Fax send trusted portion 701 to comprise facsimile signal handling part 703, video memory 704, memory controller 705, Data Control portion 706, image compression extending part 707, modulator-demodulator 708 and network control unit 709.

Wherein, processing is the diadic smoothing processing to the trusted image about facsimile signal, and the edge-smoothing handling part 501 in video data control part 205 shown in Figure 5 carries out.In addition, about video memory 704, relate to the output buffer storage function, its function part moves on to image memory access control part 221 and memory module 222.

Fax in this formation send trusted portion 701, and when beginning to send view data, Data Control portion 706 sends instruction to memory controller 705, reads the view data of storage from video memory 704 orders.The view data that is read is reset into original signal by facsimile signal handling part 703, simultaneously, handles and doubly processing of change input Data Control portion 706 through density transform.

The view data that is input to Data Control portion 706 is compressed by image compression extending part 707, by after modulator-demodulator 708 modulation, sends to the address as target by network equipment 709 again.Then, the image information of having delivered letters is eliminated from video memory 704.

During trusted, the trusted image is stored in video memory 704 for the moment, and this moment is if can write down the output of trusted image, then in the just record output finish time of an image trusted.In addition, when duplicating action, called out beginning trusted occasion, the utilization rate of video memory 704 reaches institute's definite value, for example is stored in video memory 704 before 80%, the utilization rate of video memory 704 reaches 80% occasion, forced interruption practiced write activity this moment, read the trusted image from video memory 704, the record printing.

At this moment the trusted image that is read from video memory 704 eliminates from video memory 704, the utilization rate of video memory 704 is reduced to institute's definite value, for example 10% constantly begins the write activity that interrupted again, is all at this write activity and prints for the remaining trusted image of record constantly.In addition, behind the interruption write activity, make the various parameters that are used for write activity when interrupting be kept at inside, when beginning write activity again, make the parameter involution.

The summary of the image processing apparatus that present embodiment is related constitutes as mentioned above.The summary handling process that the following describes that present embodiment relates to as the digital compounding machine of image processing apparatus.

Explanation is earlier arrived after memory module 222 memory images of the related image processing apparatus of present embodiment in image-forming assembly 206 printing treatment of picture.

Fig. 8 be the expression embodiment of the invention up to the process chart that stores the image on memory module, Fig. 9 be the expression embodiment of the invention up at image-forming assembly printing treatment of picture flow chart.By the data circulation of view data control part 203 control buses and inter-module, carry out above-mentioned each processing.

In Fig. 8, read control (step S801) at reading assembly 201 and sensor board assembly 202 earlier.Then, view data control part 203 carries out the input processing and the output control (step S802) of view data.Input processing here and output are controlled at the back and elaborate.Then, image processor 204 is imported I/F control and treatment (step S803), and scan image is handled (step S804), and output I/F handles (step S805).

Then, view data control part 203 carries out the input of view data once more and handles (step S806), data compression (step S807), data conversion (step S808), and parallel I/F control and treatment (step S809).

Then, image memory access portion 221 carries out parallel I/F control and treatment (step S810), data conversion (step S811), and further data compression (step S812) is carried out storage access control (step S813) to memory module 222.Like this, view data is stored in (step S814) in the memory module 222.

In Fig. 9, control storage access (step S902) for view data (step S901) the image memory access control part 221 that is stored in the memory module 222, carry out data and stretch processing (step S903), and data conversion (step S904), carry out parallel I/F control and treatment (step S905).The storage access control here will describe in detail in the back.

Then, view data control part 203 carries out parallel I/F control and treatment (step S906), and view data output control (step S909) is carried out in data conversion (step S907), and data stretching, extensions (step S908).

Then, image processor 204 is imported I/F control and treatment (step S910), and image quality is handled (step S911), output I/F control and treatment (step S912).

Then, video data control part 205 carries out edge-smoothing and handles (step S913), pulse control (step S914), and after this, image-forming assembly 206 carries out image processing (step S915).

Carry out scan image about reads image data at image processor 204 and handle, handle about being used for carrying out image quality to the view data of image-forming assembly 206 outputs at image processor 204, above-mentioned processing is independent respectively to be carried out.

In addition, can walk abreast and carry out that above-mentioned scan image is handled and image quality is handled, reading images is used for fax delivers letters, and walks abreast therewith, can change the image quality contents processing and will be stored in view data in the memory module 222 in advance and be printed on the transfer paper and export.

The following describes the related image processing apparatus of present embodiment is the processing of printing machine monomer occasion.Figure 10 be the expression embodiment of the invention up to will being stored in the process chart of memory module 222 from the image of computer 223, Figure 11 be the expression embodiment of the invention up to treatment of picture flow chart in image-forming assembly 206 printing memory modules 222.

In Figure 10, PC223 output image data (step S1001), image memory access control part 221 is preserved view data (step S1002) by the line buffer storage, carry out video control (step S1003), data conversion (step S1004), and data compression (step S1005), memory module 222 is carried out storage access control (step S1006).Like this, view data is stored in the memory module 222.The control of the image memory access control part 221 here will further describe in the back.

In Figure 11, control storage access (step S1102) for view data (step S1101) the image memory access control part 221 that is stored in the memory module 222, carry out data and stretch processing (step S1103), and data conversion (step S1104), carry out parallel I/F control and treatment (step S1105).The control of the storage access control part 221 here will further describe in the back.

Then, video control part 205 carries out edge-smoothing and handles (step S1106), carries out pulse control (step S1107), and after this, image-forming assembly 206 carries out imaging (step S1108).

Below, further describe the action of the related image processing apparatus of present embodiment.The related image processing apparatus of present embodiment does not all impose image processing to the view data of importing by reading assembly 201 and sensor board assembly 202, the view data that is stored in the memory module 222, only the view data that forms image that is actually used among the input image data is imposed image processing.

First embodiment

Explanation earlier is from only taking out the actual image data storage occasion memory module 222 that forms image of placing on by the view data of reading assembly 201, PC223 or 224 inputs of fax control assembly.

The image processing apparatus that present embodiment relates to is when reading the scan operation in auxilary units such as frame memory or hard disc of original copy, gained image data storage by reading assembly 201, be not the view data that storage is equivalent to the image-region (following brief note for " reading images zone ") of the original copy integral body that reads, but only storage is equivalent to place on the view data of the effective image-region (following brief note is " effective image-region ") of the image that formation is made of literal and/or figure etc.

Figure 12 takes out the actual process chart that can place on the view data (view data of effective image-region) that forms image from the view data (view data in reading images zone) by reading assembly 201 and 202 inputs of sensor board assembly, this flow processing is undertaken by view data control part 203.

Reading assembly 201 and sensor board assembly 202 read in original image, are transformed into view data (step S1201).Sensor board assembly 202 will be sent to view data control part 203 (step S1202) through the view data of conversion.

Then, view data control part 203 is according to the size in the view data identification reading images zone of institute's trusted.This identification reading images area size is carried out by the following method: the main scanning direction of trusted view data is made as X-axis, sub scanning direction is made as Y-axis, the size (Yz) of the size (Xz) of the original copy main scanning direction that view data control part 203 inquiry agencies read and the original copy sub scanning direction that is read is discerned the size (Xz, Yz) (step S1203) in reading images zone in view of the above.

Then, view data control part 203 is handled as the input revisal by filtering operation and is removed the black pixel of a unwanted part that exists in the reading images zone, for example removes isolated point.And, when carrying out this operation of removing isolated point, read and only comprise reality and can place on the minimum rectangle image-region of the effective picture black data that form image, be effective image-region.

In addition,, except that said method, also can set fixed area by the page or leaf set point in advance, for example independently set left and right sides upper and lower side respectively, will remove the zone in this surplus zone as effective image-region as surplus as the abstracting method of effective image-region.This method is very effective for the view data occasion that document data etc. preestablish the surplus zone.In this occasion, there is no need as following, to detect the coordinate of effective image-region.

This effective image-region can detect with coordinate by counter etc.Like this coordinate of the effective image-region that is detected when reading effective image main scanning direction starting point (Xs), effective image sub scanning direction starting point (Ys) when reading, effective image main scanning direction end point (Xe) when reading, effective image sub scanning direction end point (Ye) is stored in the view data control part 203 when reading.View data control part 203 with these coordinates as the parameter that is used for only the view data of effective image-region being transferred to memory module 222.

Then, view data control part 203 only is transferred to (step S1205) in the memory module 222 with the view data of effective image-region.Passing on of this view data carried out by the following method.

Be provided with logical circuit shown in Figure 13 at view data control part 203.Figure 13 is the logical circuit of being located at view data control part 203 of the embodiment of the invention, wherein, Figure 13 A is the output logic loop of the main scanning direction control signal of effective image-region, the reading counting XCNT and be formed for the control signal that the view data of main scanning direction is delivered letters of expression main scanning direction, Figure 13 B is the output logic loop of the sub scanning direction control signal of effective image-region, the reading counting YCNT and be formed for the control signal that the view data of sub scanning direction is delivered letters of vice scanning direction.

In Figure 13, CMP represents comparator, and the X_ commencing signal is represented the beginning of delivering letters of effective image of main scanning direction, and the X_ end signal is represented the end of delivering letters of effective image of main scanning direction.The beginning of delivering letters of effective image of Y_ commencing signal vice scanning direction, effective image of the Y_ end signal vice scanning direction end of delivering letters.According to these signals, only the view data with effective image-region is sent to memory.

In addition, RES_XCNT and INC_XCNT represent reset signal and the increment signal of main scanning direction counting XCNT.Reset signal and the increment signal of RES_YCNT and INC_YCNT vice scanning direction counting YCNT.

The coordinate of the effective image-region that view data control part 203 input detects, effective image main scanning direction starting point (Xs) when promptly reading, effective image sub scanning direction starting point (Ys) when reading, effective image main scanning direction end point (Ye) when reading, when reading effective image sub scanning direction end point (Ye) as parameter, simultaneously, input is the value that reads counting XCNT and the value that reads counting YCNT of sub scanning direction, relatively above-mentioned parameter and each count value of the main scanning direction of benchmark with the initial point in reading images zone.

In above-mentioned comparison, if the value that reads counting XCNT effective image main scanning direction starting point (Xs) when reading of main scanning direction is above, when reading below effective image main scanning direction end point (Xe), then the view data of view data control part 203 main scanning direction that will pass on from image processor 204 is delivered letters to memory module 222.

In addition, in above-mentioned comparison, if the value that reads counting YCNT effective image sub scanning direction starting point (Ys) when reading of sub scanning direction is above, when reading below effective image sub scanning direction end point (Ye), then the view data of view data control part 203 sub scanning direction that will pass on from image processor 204 is delivered letters to memory module 222.

As mentioned above, view data control part 203 only will be delivered letters to memory module 222 from the view data that is in effective image-region among image processor 204 passes on the view data of coming.

During from image processor 204 input one page reads image data, as the pixel count counting XCNT that reads counting and line counting number YCNT according to separately reset signal RES_XCNT and RES_YCNT by initial stageization.And, whenever the pixel data input of initial line, just sending increment signal INC_XCNT, pixel count counting XCNT is by increment.

One line image data end of input, according to increment signal INC_YCNT, line counting number YCNT increases " 1 ", simultaneously, pixel count counting XCNT according to reset signal RES_XCNT by initial stageization.

The processing of second line and later line is identical with above-mentioned processing, carries out repeatedly.

That is to say that the view data (XCNT, YCNT) that is input to view data control part 203 is delivered letters to memory module 222 as the view data of effective image-region and must be met following two formulas simultaneously:

Ys≤YCNT≤Ye

Xs≤XCNT≤Xe

The view data of the effective image-region of delivering letters by view data control part 203 is stored in (step S1206) in the memory module 222 by image memory access control part 221.

With reference to Figure 14 above-mentioned processing is described, Figure 14 represents the graph of a relation of reading images zone and effective image-region.Usually, as shown in figure 14, printing during image effective image be that the occasion of reading images regional integration does not almost have, only a part of reading images zone becomes effective image-region.And the reading images zone beyond the effective image-region is generally white data or comprises the data etc. of black pixel, and above-mentioned black pixel is the dirty noise that causes of original copy dirt when reading.

The part of this unwanted black pixel, for example the isolated point among the figure is imported revisal by filtering operation and is handled and to be removed, with white data for it.By above processing, the reading images zone beyond the effective image-region there is no need to pass on, and only effective image-region is compressed at view data control part 203, is stored in the memory module 222 that constitutes with frame memory or hard disc etc.

Therefore, the memory capacity of necessity of the data amount of passing on, the memory module 222 of parallel bus 220 can be reduced, like this, passing on the time of data can be shortened, the processing burden of the CPU in the time of alleviating image data storage in memory module 222.From view data, only take out the effective image-region occasion, carry out above-mentioned processing too by PC223 or 224 inputs of fax control assembly.

Second embodiment

The following describes from the 203 direct inputs of view data control part and only take out the actual view data of formation image of placing on by image-forming assembly 206 printing image occasions in the view data of the effective image-region of the above-mentioned first embodiment gained or from the view data that is stored in memory module 222.

The image processing apparatus that present embodiment relates to by image-forming assembly 206 printing by the view data of reading assembly 201 original copy that reads or when being stored in the view data of memory module 222, only take out and describe the suitable view data of effective image-region of literal and/or figure, the additional white view data in other zone, form the view data of transferred image size, according to this view data printing.

Figure 15 takes out the process chart that the view data of effective image-region is printed in the view data from be stored in memory module 222.The processing of this flow process is undertaken by view data control part 203 and image memory access control part 221.

Image memory access control part 221 takes out the view data that is equivalent to effective image-region (step S1501) that is stored in the memory module 222.Then, 203 identifications of view data control part will can be carried out above-mentioned identification (step S1502) by the paper size of selecting for printing by the transfer paper size of image-forming assembly 206 printings.

Then, view data control part 203 is discerned the size (step S1503) of effective image according to the view data of the effective image-region of input.Then, the image-region in the transfer paper size of view data control part 203 outside effective image-region adds white view data, forms the view data suitable with the transferred image area size, is the view data (step S1504) of transferred image size.The processing of the view data that the image-region outside effective image-region is additional white is carried out in order to following method.

Be provided with logical circuit shown in Figure 16 at view data control part 203.Figure 16 is the logical circuit of being located at view data control part 203 of the embodiment of the invention, wherein, Figure 16 A is the output logic loop of main scanning direction control signal that is used to form the view data of transferred image size, and Figure 16 B is the output logic loop of sub scanning direction control signal that is used to form the view data of transferred image size.

In Figure 16, CMP represents comparator, and the H_ commencing signal represents to the beginning of delivering letters of effective image of the main scanning direction of image processor 204, and the H_ end signal is represented the end of delivering letters of effective image of main scanning direction.The V_ commencing signal represents to the beginning of delivering letters of effective image of the sub scanning direction of image processor 204, the end of delivering letters of effective image of V_ end signal vice scanning direction.

And the HZ_ end signal represents to the end of delivering letters of the transfer printing data of the main scanning direction of image processor 204, the end of delivering letters of the transfer printing data of VZ_ end signal vice scanning direction.Like this, make in view data control part 203 inner control and be sent to image processor 204 for the view data of the transfer paper size of white data at effective image-region periphery.

In Figure 16, Hs and He represent the starting point and the end point of effective image main scanning direction on the transfer paper respectively, Vs and Ve represent the starting point and the end point of effective image sub scanning direction on the transfer paper respectively, Hz represents the transfer paper size of main scanning direction, the transfer paper size of Vz vice scanning direction.

HCNT represents the pixel count counting to the main scanning direction of image processor 204 outputs, and VCNT represents the line counting number to the sub scanning direction of image processor 204 outputs.RES_HCNT and INC_HCNT represent reset signal and the increment signal of main scanning direction pixel counts XCNT.Reset signal and the increment signal of RES_VCNT and INC_VCNT vice scanning direction line counting number VCNT.

On the view data control part 203 input transfer papers effectively on the main scanning direction starting point (Hs) of image, the transfer paper effectively the transfer paper size (Hz) of the main scanning direction end point (He) of image, main scanning direction as parameter, simultaneously, the value of the pixel count counting HCNT of input main scanning direction, relatively above-mentioned parameter and each count value.

In above-mentioned comparison, if the value of the pixel count of main scanning direction counting HCNT is on the transfer paper effectively on above, the transfer paper of image main scanning direction starting point (Hs) effectively below the image main scanning direction end point (He), then view data control part 203 is delivered letters the view data of effective image-region, if the value of the pixel count of main scanning direction counting HCNT is above-mentioned value in addition, then send white view data in transfer paper size (Hz) scope that is being no more than main scanning direction.

In addition, in above-mentioned comparison, if the value of the pixel count of sub scanning direction counting VCNT is on the transfer paper effectively on above, the transfer paper of image sub scanning direction starting point (Vs) effectively below the image sub scanning direction end point (Ve), then view data control part 203 is delivered letters the view data of effective image-region, if the value of the line counting number VCNT of sub scanning direction is above-mentioned value in addition, then send white view data in transfer paper size (Vz) scope that is being no more than sub scanning direction.

As mentioned above, view data control part 203 produces and the suitable view data (view data of transferred image size) of transferred image area size of delivering letters to image processor 204.

When the view data of one page transferred image size is sent to image processor 204, pixel count counting HCNT and line counting number VCNT according to separately reset signal RES_HCNT and RES_VCNT by initial stageization.And the pixel data whenever the initial line of output just sends increment signal INC_HCNT, and pixel count counting HCNT is by increment.

The end of delivering letters of one line image data, according to increment signal INC_VCNT, line counting number VCNT increases " 1 ", simultaneously, pixel count counting HCNT according to reset signal RES_HCNT by initial stageization.The processing of second line and later line is identical with above-mentioned processing, carries out repeatedly.

Like this, the view data of picture size of passing on that is produced by view data control part 203 is sent to image-forming assembly 206 by video data control part 205 and prints (step S1505).

With reference to Figure 17 above-mentioned processing is described, Figure 17 represents the graph of a relation of transferred image zone and effective image-region.Usually, as shown in figure 17, printing is also identical with the illustrated reading images occasion of above-mentioned first embodiment during image, and effectively the view data occasion that is configured to be full of the transfer paper size does not almost have, generally, effective image-region is configured in the part of transfer paper size inboard.

During printing, view data control part 203 passes through the only view data of trusted effective image-region of parallel bus 220 from memory module 222.After the stretching, extension, as shown in figure 17, fill out between effective image-region and transferred image zone with white data.Logical circuit control by Figure 16 is exported effective view data of trusted to image processor 204, perhaps white data are exported to image processor 204.

Therefore, can reduce the memory capacity of necessity of the data amount of passing on, the memory module 222 of parallel bus 220, like this, can shorten passing on the time of data, can alleviate the processing burden of the CPU when memory module 222 produces view data.

The 3rd embodiment

In a second embodiment, be described for the view data that produces one page transferred image size, in the present embodiment, at the obverse and reverse printed image data of transfer paper, be that so-called double-sided copying describes.

For example, image number to be printed is the even number occasion, and the obverse and reverse one of transfer paper is established a capital and is printed with image.But image number to be printed is the odd number occasion, and the reverse side of last transfer paper becomes blank sheet of paper.This occasion, bad from memory module 222 by the white obvious efficient of view data of parallel bus 220 trusted one pages, therefore, in view data control part 203, form with the white whole blank sheet of paper data of view data landfill one page part.

Form the method for blank sheet of paper data, can adopt following method: for example the size of effective image-region shown in Figure 17 is set at 0 occasion, specifically, effectively the starting point Vs and the end point Ve of the sub scanning direction of image all are made as 0 occasion on the starting point Hs of the main scanning direction of effective image and end point He and the transfer paper on the transfer paper, view data control part 203 is identified as the output of blank sheet of paper data, to the blank sheet of paper data of image processor 204 output transfer paper sizes.Perhaps also can realize to the instruction that view data control part 203 sends output blank sheet of paper data by cyclelog 211.

Like this, can reduce troublesome operation, thereby can reduce the load of parallel bus 220, alleviate the processing burden of the CPU when forming view data.In addition, during copying operation, above-mentioned scan operation and printing operation concurrent activity are realized.

Illustrated image processing method can program by computer realization such as personal computer or workbench among above-mentioned first to the 3rd embodiment.The recording medium that this procedure stores can be read by computer at hard disc, floppy disk, CD-ROM, MO, DVD etc. reads this program by computer from recording medium and carries out.In addition, this program can be passed through recording medium, utilizes networks such as internet to join cloth as transfer medium.

Certainly, the present invention is not limited to the foregoing description, can do all changes in the technology of the present invention thought range, and they all belong to protection scope of the present invention.

Claims

1. an image processing apparatus is characterized in that, is provided with:

The view data input unit of input image data;

2. according to the image processing apparatus described in the claim 1, it is characterized in that above-mentioned image processing apparatus further is provided with:

3. an image processing apparatus is characterized in that, is provided with:

The image data storage apparatus of storing image data;

4. according to the image processing apparatus described in claim 2 or 3, it is characterized in that, when the view data that above-mentioned view data reading device reads was the blank sheet of paper view data, above-mentioned view data generation device only used white view data to produce the view data of transferred image size.

5. an image processing method is characterized in that, comprises following operation:

The input operation of input image data;

6. according to the image processing method described in the claim 5, it is characterized in that above-mentioned image processing method further comprises:

View data reads operation, reads the view data of being stored by above-mentioned image data storage operation;

7. an image processing method is characterized in that, comprises following operation:

The image data storage operation of storing image data;

8. according to the image processing method described in claim 6 or 7, it is characterized in that, when above-mentioned view data read view data that operation reads and is the blank sheet of paper view data, above-mentioned view data produced operation and only uses white view data to produce the view data of transferred image size.

9. a recording medium can be read by computer; It is characterized in that this recording medium storage is carried out the program that aforesaid right requires any institute's record method among the 5-8 by computer.