JPH09247474A - Picture processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To process picture data to be transferred by different formats as desired and to reproduce color picture with high picture quality by providing a format change means for selectively and successively store picture data in a data memory. SOLUTION: A picture processor is provided with first and second line buffers 50a and 50b and first to third frame memory units 51-53 in order to process picture data which is generated by reading the color picture. They are respectively provided with the line buffers and data memories for storing picture data corresponding to red, green and blue. Then, picture data which are transferred from a reflection-type picture reading device in picture element units or line units every color are stored in the first to third frame memory units 51-53 where storage of image data of one frame is executed every color. Thus, the picture is processed even when picture data is generated by different kinds of picture reading devices and inputted in an optional kind of format.

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, and more specifically, it performs image processing on image data obtained by photoelectrically reading a color image and converting it into a digital signal. The present invention relates to an image processing apparatus used later in a color image reproduction system for reproducing a color image.

[0002]

2. Description of the Related Art Negative film, reversal film,
Color images recorded on color prints can be CCD
Is read photoelectrically by a reading means equipped with a photoelectric conversion element such as, and converted into a digital signal to generate image data, which is stored in a frame memory in the image processing apparatus, and further converted into image data stored in the frame memory. A color image reproduction system has been proposed in which image processing is performed and reproduction is performed on a recording material such as color paper or a display unit such as a CRT.

[0003]

This color image reproducing system generates image data by reading different kinds of color images recorded on different recording materials such as negative film, reversal film, color print, etc. Therefore, it is necessary to read a color image by different image reading devices according to the type of color image to be read and the type of recording material on which the color image to be read is recorded. become. However, the image data generated by different types of image reading devices may have different formats, and the transfer method of the generated image data to the image processing device may be different. For example,
When reproducing a color image recorded on a film such as a negative film or a reversal film which is expected to be in high demand, a transmission type image reading device equipped with a CCD area sensor is provided so that a high quality color image can be reproduced. On the other hand, when reading a color image using the device, on the other hand, when reproducing a color image recorded on a color print or the like, which is not expected to have much demand, CC
It is conceivable to read a color image using a reflective image reading device equipped with a D line sensor. In such a case, the image data transferred from the transmissive image reading device is planar data. On the other hand, the image data transferred from the reflection type image reading device becomes line-shaped data, and the image data obtained by reading the color image recorded on the negative film and the reversal film or the color print are recorded. The image data obtained by reading the read color image has black and white reversed.

That is, in a transmissive image reading apparatus having a CCD area sensor, first, red light (R) is emitted.
The film to generate R image data for one frame of the film and send it to the image processing apparatus, and then irradiate the film with green light (G) to produce G for one frame of the film.
The image data is generated and sent to the image processing device, and finally, the blue light (B) is applied to the film to generate B image data for one frame of the film and the image data is sent to the image processing device. There is. Therefore, in the transmissive image reading apparatus, the generated image data is transferred to the image processing apparatus for each frame of red (R), green (G), and blue (B) image data. Become. In contrast, C
In a reflective image reading device equipped with a CD line sensor, a CCD line sensor equipped with three line sensors corresponding to three colors of red (R), green (G) and blue (B) records on a color print or the like. Move on the color image
The image data corresponding to red (R), green (G), and blue (B) is generated, and the color image is read while sequentially transferring the image data to the image processing apparatus. Therefore, in the reflection-type image reading device, the generated image data is the R image data of the first pixel, the G image data of the first pixel, the B image data of the first pixel, and then the second pixel. R image data of the second pixel, G image data of the second pixel, B image data of the second pixel are transferred to the image processing device in pixel units, or R image data of the first line, G image data of the first line, B image data of the first line, and then R image data of the second line,
The generated image data, such as the G image data of the second line and the B image data of the second line, are in line units for each image data of red (R), green (G), and blue (B). Then, it is transferred to the image processing apparatus.

As described above, it is uneconomical to prepare different image processing devices according to the type of the image reading device in order to process the image data transferred from the image reading device in different formats. Therefore, it has been desired to develop an image processing device capable of processing image data generated and transferred by different types of image reading devices. Therefore, it is an object of the present invention to provide an image processing apparatus capable of performing image processing on image data transferred in different formats as desired and reproducing a high quality color image. Is.

[0006]

SUMMARY OF THE INVENTION The object of the present invention is as follows.
An image processing apparatus for a color image reproduction system that photoelectrically reads a color image to generate image data, performs image processing on the generated image data, and reproduces the color image, is used for one frame of red (R ), Green (G), blue (B)
R data memory, G data memory, and B data memory capable of storing the image data corresponding to the red (R), green (G), and blue (B), respectively. This is achieved by an image processing apparatus provided with a format changing means for selectively and sequentially storing the data memory, the G data memory, and the B data memory. According to the present invention, the image processing apparatus selectively sequentially outputs image data corresponding to red (R), green (G), and blue (B) to the R data memory, the G data memory, and the B data memory. Since the format changing means for storing the image data is provided, it becomes possible to perform image processing on the image data regardless of the format in which the image data is generated by different types of image reading devices and is input. Target.
In a preferred embodiment of the present invention, the image processing apparatus further comprises a data processing means capable of converting the number of bits of image data.

According to the preferred embodiment of the present invention, even if the number of bits of the image data generated by the image reading device is different, the image processing can be performed on the image data by one image processing device, which is economical. Is. In a further preferred aspect of the present invention, the data processing unit is further configured to be capable of executing negative / positive inversion processing on image data. According to a further preferred embodiment of the present invention, with respect to the image data obtained by reading the color image recorded on the negative film and the image data obtained by reading the color image recorded on the reversal film or color print, Image processing can be performed by one image processing device, which is economical.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a block diagram of a color image reproduction system including an image processing apparatus according to a preferred embodiment of the present invention. As shown in FIG. 1, a color image reproduction system reads a color image and generates digitized image data, and an image reading device 1, and performs predetermined image processing on the image data generated by the image reading device 1. The image processing device 5 and the image output device 8 for reproducing a color image based on the image data subjected to the image processing by the image processing device are provided. The image reading device 1 includes a transmissive image reading device 10 that photoelectrically reads a color image recorded on a film F such as a negative film or a reversal film, and a reflection type image reading device that photoelectrically reads a color image recorded on a color print P. By selectively connecting the image reading device 30 to the image processing device 5, both the color image recorded on the film F such as the negative film or the reversal film and the color image recorded on the color print P are It is configured to be playable.

FIG. 2 is a schematic diagram of a transmissive image reading apparatus 10 for a color image reproducing system including an image processing apparatus according to an embodiment of the present invention. In FIG. 2, the transmissive image reading device 10 irradiates a color image recorded on a film F such as a negative film or a reversal film with light, and detects the light transmitted through the film to photoelectrically convert the color image. Light source 11, a light amount adjustment unit 12 capable of adjusting the light amount of the light emitted from the light source 11, and the light emitted from the light source 11 into red (R), green (G) and The color separation unit 13 that decomposes into three colors of blue (B), the diffusion unit 14 that diffuses the light so that the light emitted from the light source 11 is uniformly applied to the film F, and the light that has passed through the film F The CCD area sensor 15 for photoelectrically detecting and the lens 16 for focusing the light transmitted through the film F on the CCD area sensor 15 are provided. Transmission type image reading device 10
Is an amplifier 17 that amplifies the R, G, and B image signals generated and photoelectrically detected by the CCD area sensor 15, and an A / D converter 1 that digitizes the image signals.
8. CCD correcting means 19 for correcting the variation in sensitivity and dark current for each pixel for the image signal digitized by the A / D converter 18, and the image data of R, G, B as density data. The log converter 20 for converting is provided. The log converter 20 is connected to the interface 21.

The film F is held by the carrier 22, and the film F held by the carrier 22 is the motor 2
The driving roller 24 driven by 3 feeds the image to a predetermined position, holds it in a stopped state, and when the reading of the color image of one frame is completed, the image is fed by one frame. In FIG. 2, reference numeral 25 is a screen detection sensor, which detects the density distribution of the color image recorded on the film F and outputs the detected density signal to the CPU 26 which controls the transmissive image reading apparatus 10. Based on this density signal, the CPU 26 calculates the screen position of the color image recorded on the film F, and when determining that the screen position of the color image has reached a predetermined position, the motor 23
Is configured to be stopped. In the transmissive image reading apparatus 10, first, the film F is irradiated with red light, and the light transmitted through the film F is photoelectrically detected by the CCD area sensor 15, and the 1 of the film F is detected.
R image data for one frame is generated, and the generated R image data for one frame is transferred to the image processing apparatus for every 10 bits, and then the film F is irradiated with green light and transmitted through the film F. Light is photoelectrically detected by the CCD area sensor 15 to generate G image data for one frame of the film F, and the generated G image data for one frame is
It is transferred to the image processing apparatus every 10 bits. Finally,
The film F is irradiated with blue light, the light transmitted through the film F is photoelectrically detected by the CCD area sensor 15, and B image data for one frame of the film F is generated.
The generated B image data for one frame is transferred to the image processing apparatus every 10 bits.
Therefore, in the transmissive image reading device 10,
The generated image data is transferred to the image processing apparatus 5 in units of one frame for each of the R, G, and B image data.

FIG. 3 is a schematic view of a reflection type image reading apparatus for a color image reproducing system having an image processing apparatus according to a preferred embodiment of the present invention. As shown in FIG. 3, the reflection-type image reading device 30 irradiates a color image recorded on the color print P with light, and detects the light reflected by the color print P.
It is configured to photoelectrically read color images,
A light source 31, a mirror 32 for reflecting the light emitted from the light source 31 and reflected on the surface of the color print P, and a color balance filter 33 for adjusting the sensitivity of R, G, B of the light reflected on the surface of the color print P. , A light amount adjustment unit 34 capable of adjusting the light amount of the light reflected on the surface of the color print P, a CCD line sensor 35 for photoelectrically detecting the light reflected by the color print P, and the light reflected by the color print P. A lens 36 for forming an image on the CCD line sensor 35 is provided. The CCD line sensor 35 is composed of a three-line sensor corresponding to the three colors of R, G, and B, and is moved from the color print P by the CCD line sensor 35 while moving the light source 31 and the mirror 32 in the direction of the arrow. The color image recorded on the color print P is two-dimensionally read by detecting the reflected light.

The reflective image reading device 30 further comprises:
An amplifier 37 that amplifies the R, G, and B image signals photoelectrically detected by the CCD line sensor 35, an A / D converter 38 that digitizes the image signal, and a digitized by the A / D converter 38. For the image signal
CC that performs correction processing for variations in sensitivity and dark current for each pixel
It is provided with a D correction means 39 and a log converter 40 for converting the image data of R, G, B into density data. The log converter 40 is connected to the interface 41. In the reflective image reading device 30, the color print P
Is held stationary by a carrier (not shown),
The light source 31 and the mirror 32 are configured to be moved in the direction of the arrow by a driving unit (not shown). The reflective image reading device 30 is controlled by the CPU 46. In the reflection-type image reading device 30 according to the present embodiment, 3 types corresponding to three colors of R, G, and B are used.
CCD line sensor composed of line sensor,
While moving on the color image recorded on the color print P to generate image data corresponding to the three colors of R, G, and B, the generated image data is sequentially transferred to the image processing apparatus. Has been done. Therefore, in the reflection-type image reading device 30 according to the present embodiment, the R image data of the first pixel, the G image data of the first pixel, and the first image data
Image data of each pixel, such as B image data of a pixel, R image data of a second pixel, G image data of a second pixel, B image data of a second pixel.
Each bit is transferred to the image processing device.

4 and 5 are block diagrams of the image processing apparatus 5 according to the preferred embodiment of the present invention. As shown in FIGS. 4 and 5, the image processing device 5 includes an interface 48 connectable to the interface 21 of the transmissive image reading device 10 or the interface 41 of the reflective image reading device 30, and a reflective image. The image data transferred from the reading device 30 or the transmissive image reading device 10 is input from the image reading device 1 and a data processing unit 46 that performs a process such as changing the number of bits of the transferred image data and negative / positive inversion. Further, the arithmetic mean calculating means 4 adds the values of two adjacent pixel data, averages them, and allocates them to one pixel data.
9 and the pixel data in each line of the image data sent from the arithmetic mean calculation means 49 are alternately stored.
Line buffer 50a and second line buffer 5
0b and the line data stored in the line buffers 50a and 50b are transferred to store the image data corresponding to the color image of one frame recorded on the film F or the color image recorded on one color print P. It comprises a first frame memory unit 51, a second frame memory unit 52 and a third frame memory unit 53. Here, the first line buffer 50a and the second line buffer 50b store the odd-numbered pixel data of each line of the image data in one line buffer,
The even-numbered pixel data is alternately stored in the other line buffer.

In the present embodiment, the arithmetic mean calculation means 49 is arranged so that, for one frame of image data which is continuously transferred from the transmissive image reading apparatus 10 every 10 bits, two adjacent pixels are used. Add and average the data values to get 1
As for the image data for each pixel transferred in 12-bit units from the reflective image reading device 30 so as to be assigned to one pixel data, two adjacent pixel data values of R image data and G image data The values of two adjacent pixel data and the values of two adjacent pixel data of B image data are added and averaged, respectively, and assigned to one pixel data. In the present embodiment, the image reading device 1 once reads a color image of one frame recorded on the film F or a color image recorded on one color print P to generate digital image data. The image processing apparatus 5 sets the image reading condition for the second reading (main reading) based on the image data obtained by the first reading (pre-reading), and again reads the color image (main reading). ) Is executed to generate digital image data, and the first frame memory unit 51 stores the image data obtained by the pre-reading, which is the first reading, in the second frame memory unit 51. 52 and the third frame memory unit 53 store image data obtained by the second reading, which is the main reading. Each of which is configured to be stored.

FIG. 6 is a block diagram showing the details of the first line buffer 50a, the second line buffer 50b, the first frame memory unit 51, the second frame memory unit 52 and the third frame memory unit 53. Is. As shown in FIG. 6, the image processing apparatus 5 processes the first line buffer 50a and the second line buffer 50a to process the image data generated by reading the color image.
Line buffer 50b, first frame memory unit 51, second frame memory unit 52 and third frame memory unit
The frame memory unit 53 includes a first R line buffer 50aR, a first G line buffer 50aG, and a first R line buffer 50aG that store image data corresponding to red (R), green (G), and blue (B), respectively. B line buffer 50
aB, second R line buffer 50bR, second G line buffer 50bG, and second B line buffer 50
bB, R data memory 51R, G data memory 51G and B data memory 51B, R data memory 52R, G
A data memory 52G and a B data memory 52B, an R data memory 53R, a G data memory 53G and a B data memory 53B are provided. In FIG.
The state in which the image data obtained by the pre-reading is input to the first frame memory unit 51 and the image data stored in the second frame memory unit 52 is output is shown.

In the present embodiment, the CPU 60 for controlling the entire image processing apparatus 5 and the first R line buffer 50.
aR, the first G line buffer 50aG and the first B
Line buffer 50aB, second R line buffer 50
bR, second G line buffer 50bG and second B
By the line buffer 50bB, the R data memory 51R, the G data memory 51G and the B data memory 51B, the R data memory 52R, the G data memory 52G and the B data memory 52B, and the R data memory 53R, the G data memory 53G and the B data memory 53B, The image data transferred from the reflection-type image reading device 30 for each color on a pixel-by-pixel basis or on a line-by-line basis is stored in the first, second, or third frame memory units 51, 52 for storing one frame of image data for each color. , 53 for storing the format. The format changing means configured in this way is as follows.
Change the image data format. In the transmissive image reading device 10 including the CCD area sensor 15, first, the film is irradiated with red light (R) to generate R image data for one frame of the film, and the image processing device 5
And then illuminate the film with green light (G),
The G image data for one frame of the film is generated and transferred to the image processing device 5, and finally the film is irradiated with blue light (B) to generate the B image data for one frame of the film, It is configured to be transferred to the image processing device 5.
Therefore, in the transmissive image reading device 10,
Generated image data is red (R), green (G), blue (B)
For each image data of,
It is transferred to the image processing device 5.

On the other hand, the reflection type image reading device 30 having the CCD line sensor 35 has three line sensors corresponding to three colors of red (R), green (G) and blue (B). The CCD line sensor 35 moves on a color image recorded on a color print or the like to generate image data corresponding to red (R), green (G), and blue (B), and the image processing device 5 sequentially. It is configured to read color images while being transferred to. Therefore, in the reflection-type image reading device 30, the generated image data is the R image data of the first pixel, the G image data of the first pixel, the B image data of the first pixel, and then the second image data. R image data of pixel, G image data of second pixel, second
B image data of pixels, each of red (R), green (G), and blue (B) image data is transferred in pixel units to the image processing apparatus, or is transferred in the first line. R
Image data, G image data for the first line, B image data for the first line, R image data for the second line, G image data for the second line, and B image data for the second line. As described above, the generated image data is transferred to the image processing device 5 in units of lines for each of the red (R), green (G), and blue (B) image data. In the present embodiment, Is configured so that the generated image data is transferred to the image processing device on a pixel-by-pixel basis.

In the image processing apparatus 5, the image data is stored in the first frame memory unit 51, the second frame memory unit 52 or the third frame memory unit 53 for each frame. There is. Here, the first frame memory unit 51, the second frame memory unit 52, and the third frame memory unit 53 are red (R), green (G), and blue (B), respectively.
R data memory 51 for storing image data corresponding to
R and G data memory 51G and B data memory 51
B, R data memory 52R, G data memory 52G, B data memory 52B, and R data memory 53
R, G data memory 53G and B data memory 53B
Image data of red (R), green (G), and blue (B) sent from the image reading apparatus 1 for each color.
R data memory 51R, G data memory 51G and B
The data memory 51B, the R data memory 52R, the G data memory 52G and the B data memory 52B or the R data memory 53R, the G data memory 53G and the B data memory 53B are stored, respectively. Therefore,
The image data transferred from the transmissive image reading device 10 to the image processing device 5 in sequence for each frame of red (R), green (G), and blue (B) image data, as they are. ,
R data memory 5 of the first frame memory unit 51
1R, G data memory 51G and B data memory 51
B, stored in the R data memory 52R, G data memory 52G and B data memory 52B of the second frame memory unit 52 or in the R data memory 53R, G data memory 53G and B data memory 53B of the third frame memory unit 53 be able to.

On the other hand, the reflection type image reading device 3
The image data from 0 is R image data of the first pixel, G image data of the first pixel, B image data of the first pixel,
Next, R image data of the second pixel, G image data of the second pixel, B image data of the second pixel, and so on.
Since the image data, the G image data, and the B image data are continuously transferred to the image processing device 5 for each pixel, the R image data, the G image data, and the B image data are replaced with the corresponding R data memory and the G data. In memory or B data memory,
It is necessary to selectively store the data. Therefore, in the image processing apparatus 5 of the preferred embodiment of the present invention, when the image data from the reflection type image reading apparatus 30 is stored in the second frame memory unit 52, for example, the CPU 60 first sets it. The R image data of the first pixel thus received is stored in the R memory unit 52R, the G image data of the first pixel sent next is stored in the G memory unit 52G, and is sent third. The B image data of the first pixel is transferred to the B memory unit 5
Stored in 2B, R of the second pixel sent to the fourth
The image data is stored in the R memory unit 52R, the G image data of the second pixel sent fifth is stored in the G memory unit 52G, and the second image sent second is sent.
The B image data of the pixel is stored in the B memory unit 52B, and so on.
Controlling 2G and 52B, R sent in pixel units,
Image data of G and B is stored in the R memory unit 52R, the G memory unit 52G and the B memory unit 52B,
It is configured to be selectively and sequentially stored.

Further, in this embodiment, since each memory unit is composed of DRAM, a refresh operation is necessary, while image data is sent regardless of the refresh operation of each memory unit. Therefore, each memory unit cannot store image data during the refresh operation. Therefore, in the present embodiment, the first frame memory unit 5
A first line buffer 50a and a second line buffer 50b are provided in front of the first, second frame memory unit 52 and the third frame memory unit 53, and after the image data is temporarily held by these. , First
Frame memory unit 51, second frame memory unit 52 or third frame memory unit 53
The image data sent regardless of the refresh operation of each memory unit is stored in the first
Frame memory unit 51, second frame memory unit 52 or third frame memory unit 53
It is configured to be stored in. Here, the first line buffer 50a and the second line buffer 50b are controlled by the CPU 60 and are configured to alternately store the transferred image data. The first line buffer 50a includes a first R line buffer 50aR, a first G line buffer 50aG, and a first B line buffer 50aB,
The second line buffer 50b is composed of a second R line buffer 50bR, a second G line buffer 50bG and a second B line buffer 50bB,
The R image data alternates between the first R line buffer 50aR and the second R line buffer 50bR, and the G image data alternates between the first G line buffer 50aG and the second G line buffer 50bG. The data is the first B
Line buffer 50aB and second B line buffer 50
Alternately stored in bB, respectively.

Therefore, the reflection type image reading device 30
When storing the image data from the first pixel in the second frame memory unit 52, the CPU 60 replaces the first R image data of the first pixel with the first R image data.
The G image data of the first pixel, which is stored in the line buffer 50aR and sent next, is stored in the first G line buffer 5
0aG, and the B image data of the first pixel sent third is stored in the first G line buffer 50aG, and the R image data of the second pixel sent fourth is stored in the second Stored in the R line buffer 50bR of the second pixel, the G image data of the second pixel sent fifth is stored in the second G line buffer 50bG, and the B image of the second pixel sent sixth The data is stored in the second G line buffer 50bG, the R image data of the third pixel sent to the 7th is stored in the first R line buffer 50aR, and the R image data of the third pixel sent to the 8th is sent. The G image data of the pixel is stored in the first G line buffer 50aG, and so on, in the first frame memory unit 51, the second frame memory unit 52, or the third frame memory unit 53. And controls the six line buffers provided in, to, selectively, sequentially, and stored,
Of the first frame memory unit 51, the second frame memory unit 52, and the third frame memory unit 53, the frame memory unit capable of storing image data is configured to store the image data.

A CPU 60 for controlling the entire image processing apparatus 5
Is a CPU 26 that controls the transmissive image reading apparatus 10.
Alternatively, a CPU that controls the reflection-type image reading device 30
46 is communicable via a communication line (not shown), and is also communicable via a communication line (not shown) with a CPU that controls the image output device 8 described later. C
The PU 60 can correct the image reading condition for performing the main reading of the color image and the image processing condition as necessary, based on the image data obtained by the pre-reading stored in the first frame memory unit 51. Is configured. That is, the CPU 60, based on the image data obtained by the pre-reading,
CCD area sensor 15 or CCD line sensor 3
In order to efficiently use the dynamic range of 5,
The image reading condition for the main reading is determined, and the reading control signal is sent to the CPU 26 of the transmissive image reading apparatus 10.
Alternatively, it is output to the CPU 46 of the reflective image reading device 30. When the reading control signal is input, the CPU 26 of the transmissive image reading device 10 or the CPU 46 of the reflective image reading device 30 controls the light amount and the CCD area sensor 15 or the CCD line adjusted by the light amount adjusting unit 12 or the light amount adjusting unit 34. The storage time of the sensor 35 is controlled. At the same time, the CPU 60, based on the obtained image data, makes it possible to reproduce a color image having the optimum density, gradation and color tone on the color paper so that the first image processing means and the second image described later can be used. A control signal for correcting the image processing condition such as the parameter of the image processing by the processing means is output to the first image processing means and the second image processing means as needed.

As described above, the first image data obtained by the first image reading, that is, the pre-reading is mainly the second image data.
Since it is used to determine the image reading condition and the image processing condition for the image reading, that is, the main reading, the amount of data may be small. The operator is able to set the image processing conditions by reproducing the color image on the CRT based on the obtained image data and observing the reproduced color image. The amount of image data
The image data generation device reduces the color image to a reproducible amount of data on the CRT and stores it in the first frame memory unit 51. Therefore, in the transmissive image reading apparatus 10, the CCD area sensor 15 transfers only the image data corresponding to the odd field or the even field in the pre-reading, and in the reflective image reading apparatus, the light source 31 and By doubling the moving speed of the mirror 32, that is, the sub-scanning speed, the image reading device 1 is configured so that the data amount of the image data to be generated becomes 1/2 as compared with the case of the main reading. Further, the arithmetic mean unit 49 of the image processing device 5 adds the values of the two pixel data of the image data sent, and allocates the data obtained by averaging to one pixel data. The number of pixel data of each line of data is reduced to 1/2, and the pixel data of one of the odd line and the even line of the image data The,
The first line buffer 50a and the second line buffer 50b are alternately stored, and only the image data stored in one of the first line buffer 50a and the second line buffer 50b is stored in the frame memory. By doing so, the number of pixel data of the image data stored in the frame memory is reduced to 1/16. In this way, since the number of pixel data in the image data is reduced at the time of pre-reading, the second frame memory unit 52 and the third frame memory unit 53 for storing the image data obtained by the main reading are the negative film or the negative film. It has a capacity to store a color image for one frame recorded on a film F such as a reversal film or an image data obtained by reading a color image recorded on one color print P. As the first frame memory unit 51 for storing the image data obtained by the pre-reading, one having a much smaller capacity than the second frame memory unit 52 and the third frame memory unit 53 is used.

The image processing apparatus 5 further adds a color image on a color paper to the image data stored in the second frame memory unit 52 and the third frame memory unit 53 with desired density, gradation and color tone. The image stored in the first image processing means 61 and the first frame memory unit 51 for performing image processing such as gradation correction, color conversion, and density conversion by a lookup table or matrix calculation so that the image can be reproduced. Image processing such as gradation correction, color conversion, and density conversion is performed on the data by a look-up table or matrix calculation so that a color image can be reproduced on a CRT screen described later with a desired image quality. The image processing means 62 is provided. The outputs of the second frame memory unit 52 and the third frame memory unit 53 are connected to the selector 55, and stored in either the second frame memory unit 52 or the second frame memory unit 53 by the selector 55. Image data is selectively selected by the first image processing means 61.
It is configured to be inputted to. First frame memory unit 51, second frame memory unit 52
And the input bus 6 of the third frame memory unit 53
3 and the output bus 64, a data bus 65 is provided. The data bus 65 stores a CPU 60 that controls the entire color image reproduction system, a memory 66 that stores an operation program of the CPU 60, and image data. ,
A storable hard disk 67, a CRT 68, a keyboard 69, a communication port 70 connected to another color image reproduction system via a communication line, the CPU 26 of the transmissive image reading device 10 or the reflective image reading device 30.
A communication line with the CPU 46 is connected.

The first image processing means 61 is connected to the data synthesizing means 75, and the data synthesizing means 75 is connected to the synthetic data memory 76. Composite data memory 76
Is an R data memory 76R for storing image data such as figures and characters corresponding to red (R), green (G) and blue (B),
It is equipped with a G data memory 76G and a B data memory 76B, and synthesizes it with image data obtained by reading a color image recorded on the film F or the color print P, and outputs it on a color paper by an image output device 8 described later. Image data such as figures and characters to be combined with the color image when the color image is reproduced is stored. The data synthesizing means 75 is connected to the interface 77. FIG. 7 is a schematic diagram of an image output device 8 for a color image reproduction system that reproduces a color image on a color paper based on image data processed by the image processing device according to the preferred embodiment of the present invention.
In FIG. 7, the image output device 8 is an interface 78 that can be connected to the interface 77 of the image processing device 5.
A CPU 79 for controlling the image output device 8, an image data memory 80 including a plurality of frame memories for storing the image data input from the image processing device 5, and a D / A converter for converting the image data into an analog signal. 81, a laser light irradiation means 82, and a modulator driving means 83 for outputting a modulation signal for modulating the intensity of the laser light. CP
The U79 is configured to be communicable with the CPU 60 of the image processing apparatus 5 via a communication line (not shown).

FIG. 8 is a schematic diagram of the laser light irradiation means 82. The laser light irradiation means 82 includes red semiconductor laser light sources 84a, 84b and 84c.
The laser light emitted from the laser light source 4b is converted into a green laser light by the wavelength conversion means 85, and the semiconductor laser light source 8
The laser light emitted by 4c is converted into blue laser light by the wavelength conversion means 86. Red laser light emitted from the semiconductor laser light source 84a, wavelength conversion means 8
The green laser light whose wavelength has been converted by 5 and the blue laser light whose wavelength has been converted by the wavelength converting means 86 respectively enter optical modulators 87R, 87G, 87B such as an acousto-optic modulator (AOM). The modulation signals are input to the optical modulators 87R, 87G, and 87B from the modulator driving means 83, and the intensity of the laser light is modulated according to the modulation signals. ing. The laser light whose intensity is modulated by the optical modulators 87R, 87G, and 87B is reflected by the reflection mirror 88R,
The polygon mirror 89 is reflected by 88G and 88B.
Incident on. The image output device 8 includes a magazine 91 that stores color paper 90 in a roll shape, and the color paper 90 is configured to be transported in the sub-scanning direction along a predetermined transport path. In the conveying path of the color paper 90, perforation means 92 for perforating reference holes is provided at the side edge of the color paper 90 at intervals corresponding to the length of one color print on which a color image is reproduced. Cage,
In the image output device 8, the conveyance of the color paper 90 and the driving of other means are synchronized in accordance with the reference hole. The laser light modulated by the optical modulators 87R, 87G, and 87B is scanned in the main scanning direction by the polygon mirror 89 and passes through the fθ lens 93.
The color paper 90 is exposed. Here, since the color paper 90 is conveyed in the sub scanning direction, the entire surface of the color paper 90 is exposed by the laser light. Here, the conveyance speed of the color paper 90 in the sub-scanning direction is controlled by the CPU 79 so as to be synchronized with the main scanning speed of the laser light, that is, the rotation speed of the polygon mirror 89.

The color paper 90 exposed by the laser beam is sent to the developing processing section 94, where it is subjected to predetermined color developing processing, bleach-fixing processing, and water washing processing, and image data subjected to image processing by the image processing apparatus 5 is processed. On the basis of,
A color image is reproduced on the color paper 90. The color paper 90 which has been subjected to the color developing processing, the bleach-fixing processing and the water washing processing by the color developing tank 94, the bleach-fixing tank 95 and the water washing tank 96 is sent to the drying section 97 and dried, and then the side of the color paper 90. A cutter 98 driven in synchronism with the transport of the color paper 90 based on the reference holes punched at the edges corresponds to a color image recorded on one film F or one color paper P. Cut to length and sent to Sorter 99 for 1
The number of sheets corresponding to the film F of the book or each customer is collected. Here, the color developing tank 9
4, the bleach-fixing tank 95, the water washing tank 96, the drying section 97, the cutter 98 and the sorter 99 may be those used in a normal automatic developing machine. FIG.
3 is a block diagram showing details of the first image processing means 61. FIG. As shown in FIG. 9, the first image processing means 61 is a color density gradation conversion means 100 for converting density data, color data and gradation data of image data, and a color for converting saturation data of image data. A conversion unit 101, a digital magnification conversion unit 102 for converting the number of pixel data of image data, a frequency processing unit 103 for performing frequency processing on the image data, and a dynamic range conversion unit 104 for converting the dynamic range of the image data. There is.

A color image reproducing system including the image processing apparatus 5 according to the preferred embodiment of the present invention configured as described above reads a color image recorded on the film F or the color print P as follows. , Image data is generated, image processing is performed on the image data, and a color image is reproduced on the color paper 90. When reproducing a color image recorded on a film F such as a negative film or a reversal film, the transmissive image reading device 10 uses an interface 21 to
The film F is connected to the interface 48 of the image processing apparatus 5, and the film F is set on the carrier 22. When the film F is set on the carrier 22, a drive signal is output from the CPU 60 to the motor 23, and the motor 23 drives the drive roller 24. As a result, the film F is conveyed in the direction of the arrow. The screen detection sensor 25 detects the density distribution of the film F and outputs the detected density signal to the CPU 26. Based on this density signal, the CPU 26 calculates the screen position of the color image recorded on the film F, and when it determines that the screen position of the color image has reached a predetermined position, stops the drive of the motor 23. As a result, the color image recorded on the film F is stopped at the predetermined screen position with respect to the CCD area sensor 15 and the lens 16. After that, light is emitted from the light source 11 at a predetermined timing, and the light amount is adjusted by the light amount adjusting unit 12.

In the transmissive image reading device 10,
The light emitted from the light source 11 is adjusted to a predetermined light amount by the light amount adjustment unit 12, and is separated into three colors of red (R), green (G), and blue (B) by the color separation unit 13, First, the red (R) light is applied to the film F, then the green (G) light, and finally, the blue (B) light is applied to the film F, respectively, and is transmitted through the film F. The light is photoelectrically read by the CCD area sensor 15, image data of each of R, G, and B is generated, and sequentially transferred to the image processing device 5. Therefore, the transmissive image reading apparatus 10 first irradiates the film with red light (R) to read R for one frame of the film.
Image data is generated and transferred to the image processing apparatus 5, then green light (G) is applied to the film to generate G image data for one frame of the film and transferred to the image processing apparatus 5. Finally, the film is irradiated with blue light (B), B image data for one frame of the film is generated, and transferred to the image processing apparatus 5. In this embodiment, the color image recorded on one frame of the film is read twice, and the image reading condition is determined based on the first image data obtained by the first reading (prefetching). The light amount adjusting unit 12 adjusts the light amount of the light applied to the film F and the accumulation time of the CCD area sensor 15 to perform the second reading (main reading).

In this pre-reading, the CCD area sensor 15 is controlled by the CPU 26 so as to transfer only the image data corresponding to the color image of either the odd field or the even field to the amplifier 17. The number of lines of image data corresponding to the odd field or the even field is 1/2 of the number of lines of the read color image, and therefore the number of pixel data thereof is also 1/2. The image data corresponding to the odd field or the even field selected by the CPU 26 and generated by the CCD area sensor 15 is amplified by the amplifier 17 and then converted into a digital signal by the A / D converter 18. The image data converted into a digital signal is subjected to correction of variations in sensitivity and dark current for each pixel by the CCD correction means 19, and after being converted to density data by the log converter 20, the interface 21 and the interface. 48
The R image data for one frame, the G image data for one frame, and finally the B image data for one frame are sequentially sent to the image processing apparatus 5 line by line. The image data input to the image processing device 5 is first input to the data processing unit 46. When the input image data is generated by reading the color image recorded on the reversal film F, the data processing unit 46 performs the negative-positive reversal process on the image data to obtain the negative film F.
When it is generated by reading the color image recorded in (1), the image data is output to the arithmetic mean calculating means 49 without executing any processing.

Upon receipt of the R image data from the data processing means 46, the arithmetic mean calculation means 49 adds the values of two adjacent pixel data of the R image data and averages them to obtain 1
By allocating to one pixel data, the number of pixel data of each line of each image data is reduced to 1/2. Next, the CPU 60 alternately supplies only the pixel data of one of the odd line and the even line of the R image data to the first R line buffer 50aR and the second R line buffer 50bR, that is, the R image data. The odd-numbered pixel data of the odd-numbered line and the even-numbered line are input to one of the first R line buffer 50aR and the second R-line buffer 50bR and the even-numbered pixel of the odd-numbered line and the even-numbered line of each image data of the R image data. The data is stored in the other of the first R line buffer 50aR and the second R line buffer 50bR, respectively. Therefore, of the R image data output from the arithmetic mean processing unit 49, only the image data of one of the odd line and the even line is the first R line buffer 5.
0aR and the second R line buffer 50bR are transferred to the first R line buffer 50aR and the second R line buffer 50bR.
The number of lines of the image data stored in the R line buffer 50bR is halved.

At the time of pre-reading, the CPU 60
Connects one of the first R line buffer 50aR and the second R line buffer 50aR and the first frame memory unit 51 to the input bus 63, and connects the second frame memory unit 52 and the third frame memory unit 52. The connection between the frame memory unit 53 and the input bus 63 is controlled so as to be cut off. Therefore, the first R line buffer 50a is controlled.
Only the R image data stored in one of the R and the second R line buffer 50bR, that is, only the odd-numbered pixel data or the even-numbered pixel data of one of the odd line and the even line, The data is sequentially transferred to the first frame memory unit 51.
As a result, the number of pixel data in each line of R image data is reduced to 1/2. In this way, the number of pixel data of the R image data corresponding to the color image recorded on the film F of one frame is finally reduced to 1/16, and the R image data is stored in the R data memory 51R of the first frame memory unit 51. Remembered. Next, the same process is performed on the G image data and the B image data, the number of pixel data is finally reduced to 1/16, and the G data memory 51G and the B data memory of the first frame memory unit 51 are 51B, respectively.

On the other hand, when reproducing the color image recorded on the color print P, the reflection type image reading device 3 is used.
0 is the image processing device 5 via the interface 41.
Connected to the interface 48 of the color print P
Are supported by the carrier 42. The light emitted from the light source 31 is reflected on the surface of the color print P, enters the color balance filter 33 through the mirror 32, and the sensitivities of R, G, and B are adjusted, and then the light amount adjustment unit 34 is used. , The amount of light is adjusted. As aforementioned,
In the pre-reading, the light emitted from the light source 31 is adjusted to a predetermined light amount by the light amount adjusting unit 34, and R,
C consisting of 3 line sensors corresponding to G and B respectively
The CD line sensor 35 receives the light and photoelectrically reads it. Here, the light source 31 and the mirror 32 are moved at a predetermined speed in a direction indicated by an arrow in FIG. 3, that is, in the sub-scanning direction by a driving unit (not shown), and as a result, the carrier (FIG. The color image recorded on the color print P supported by (not shown) is two-dimensionally read, and the image data corresponding to R, G, and B is converted into CC.
Generated by the D line sensor 35. At the time of pre-reading, the moving speed of the light source 31 and the mirror 32, that is, the sub-scanning speed is set to twice as much as that at the time of main reading.
The number of pixel data in the sub-scanning direction of the image data generated by is ½ that in the main reading.

R image data corresponding to R, G and B generated by the CCD line sensor 35, G image data,
The B image data is amplified by the amplifier 37 and then converted into a digital signal by the A / D converter 38. The image data converted into a digital signal is
The CCD correcting unit 39 corrects variations in sensitivity and dark current for each pixel, and the log converter 40 converts the density data to density data. Then, the image is transferred in pixel units via the interface 41 and the interface 48. It is sent to the processing device 5. The image data transferred from the reflective image reading device 30 is processed by the data processing unit 46 of the image processing device 5.
Is input to the transparent image reading device 1 from 12 bits based on the look-up table.
The number of bits of the transferred image data is changed from 0 to 10 bits, and the negative / positive inversion processing is further performed. The number of bits is changed to 10 bits, and the image data subjected to the negative / positive inversion processing is output from the data processing unit 46 to the arithmetic mean calculation means 49. Upon receiving the image data, the arithmetic mean calculation means 49 calculates the value of two adjacent pixel data of the R image data, the value of two adjacent pixel data of the G image data, and the value of two adjacent pixel data of the B image data. By averaging the respective values and assigning them to one pixel data, the number of pixel data in each line direction of each image data is reduced to 1/2.

Then, under the control of the CPU 60, only the image data of one of the odd line and the even line of the R image data is alternately supplied to the first R line buffer 50aR and the second R line buffer 50bR. Only the image data of one of the odd line and the even line is stored in the first first G line buffer 50aG and the second G line buffer 50aG.
Of the odd-numbered lines and even-numbered lines of the B image data are alternately stored in the first B-line buffer 50aB and the second B-line buffer 50bG, respectively. . That is, the odd-numbered pixel data of the image data on one of the odd line and the even line of the R image data is the first
Of even-numbered pixel data in one of the R line buffer 50aR and the second R line buffer 50bR of the first R line buffer 50aR and the other of the second R line buffer 50bR. The odd-numbered pixel data of the image data on one side of the line is transferred to one of the first G line buffer 50aG and the second G line buffer 50bG and the even-numbered image data of one of the odd line and the even line of G image data. The pixel data is the first G line buffer 50aG and the second G line buffer 50aG.
To the other of the G line buffer 50bG, the odd-numbered pixel data of one of the odd-numbered and even-numbered lines of the B image data is transferred to one of the first B-line buffer 50aB and the B-line buffer 50bB. The even-numbered pixel data of the image data of one of the odd line and the even line is the first B line buffer 50aB.
And the other of the B line buffer 50bB,
It is memorized. Therefore, of the R, G, and B image data output from the arithmetic mean processing unit 49, only the image data of one of the odd line and the even line is the first R line buffer 50aR and the first G line buffer. 5
0aG, stored in the first B line buffer 50aB,
Only the other image data is the second R line buffer 50.
bR, the second G line buffer 50bG, and the second B line buffer 50bB, the first R line buffer 50aR, the first G line buffer 50aG,
R, G stored in the first B line buffer 50aB, the second R line buffer 50bR, the second G line buffer 50bG, and the second B line buffer 50bB.
The number of lines of B image data is reduced to 1/2.

At the time of pre-reading, the CPU 60
Is a first R line buffer 50aR, a first G line buffer 50aG and a first B line buffer 50a.
A first set of line buffers consisting of B and a second R
Line buffer 50bR, second G line buffer 50
The first frame memory unit 51 is connected to the line buffer of any one of the second set of line buffers including the bG and the second B line buffer 50bB and the second frame. Memory unit 5
The second and third frame memory units 53 and the input bus 63 are controlled so as to be disconnected from each other.
A first set of line buffers including a first R line buffer 50aR, a first G line buffer 50aG, and a first B line buffer 50aB, a second R line buffer 50bR, and a second G line buffer 50bG.
And only the image data stored in the line buffer of one set of the second set of line buffers consisting of the second B line buffer 50bB, that is, the odd and even lines of the R, G and B image data. Only one of the odd-numbered pixel data or the even-numbered pixel data is sequentially read as the image data of each of the data memories 51R, 51G, 51B of the first frame memory unit 51.
Respectively, will be transferred. As a result, the number of pixel data in each line of image data is further reduced to 1/2. In this way, the number of pixel data of the image data generated from the color image recorded on one color print P is finally reduced to 1/16, and as image data corresponding to R, G, and B, respectively, The data is stored in the R data memory 51R, the G data memory 51G, and the B data memory 51B of the first frame memory unit 51. In this manner, the image data for one frame sent from the reflective image reading device 30 for each pixel is converted into the R data memory 51R, the G data memory 51G, and the B data memory 51B of the first frame memory unit. Are selectively stored in.

In this way, the first read is performed by the prefetch.
The image data stored in the frame memory unit 51 is sent to the data bus 65 and analyzed by the CPU 60. Based on the image data read by the pre-reading, the CPU 60 transmits the read control signal through the data bus 65 so that the color image is read by the main reading so as to be suitable for the dynamic range of the CCD area sensor 15. Of the image reading apparatus 10
CPU of the PU 26 or the reflection type image reading device 30
46 and outputs the image reading conditions for the main reading automatically so that the image having the optimum density, gradation and color tone can be reproduced on the color paper 90 based on the image data obtained by the main reading. To decide. The CPU 26 of the transmissive image reading device 10 or the CPU 46 of the reflective image reading device 30 uses the reading control signal input from the CPU 60 to irradiate the film F with a desired amount of light during the main reading,
Alternatively, the light amount adjusting unit 12 or the light amount adjusting unit 3 is set so that the desired amount of light reflected by the color print P is received by the CCD line sensor 35.
3 is controlled and the accumulation time of the CCD area sensor 15 and the CCD line sensor 15 is adjusted.

At the same time, the CPU 60 executes the first image processing means 6 via the data bus 65, if necessary, according to the analysis result of the image data read by the pre-reading.
Sending a control signal to the first and second image processing means 62,
Correct image processing conditions such as image processing parameters.
Further, the image data read by pre-reading and stored in the first frame memory unit 51 is sent to the second image processing means 62, and gradation correction, color conversion, density conversion, etc. are performed by a look-up table or matrix operation. After the image processing is performed, the CRT is sent via the data bus 65.
68, and a color image is displayed on the screen of the CRT 74. The operator observes the color image displayed on the screen of the CRT 68 and, if necessary, the keyboard 6
9 can be operated to modify the image reading condition and / or the image processing condition for the main reading. When the operator operates the keyboard 69 and inputs an instruction signal that the image reading condition and / or the image processing condition for the main reading should be corrected, the instruction signal is sent to the CPU 60 via the data bus 65. Is entered. CPU6
0 generates a control signal based on the instruction signal and outputs it to the data bus 65, and the control signal is the CPU 26 of the transmissive image reading device 10 or the reflective image reading device 3.
0 CPU 46 and / or first image processing means 6
0 and / or sent to the second image processing means 61,
Image reading conditions and / or image processing conditions are modified.

In this embodiment, the data bus 65 is used.
Is formed separately from the input bus 63 and the output bus 64 of the first frame memory unit 51, the second frame memory unit 52, and the third frame memory unit 53. While inputting to the frame memory unit 51, the second frame memory unit 52, or the third frame memory unit 53, or while outputting image data from these, the operator inputs various instruction signals. Moreover, a color image can be reproduced on the screen of the CRT 68. In this way, when the image reading conditions and / or the image processing conditions for the main reading are determined by the pre-reading, the main reading is executed. At the time of actual reading, the CCD area sensor 15 of the transmissive image reading device 10 outputs the image data of the odd and even fields of the color image recorded in one frame of the film F,
It is generated for each color of red (R), green (G), and blue (B), and the image data of the odd field and the even field for each color of red (R), green (G), and blue (B) is generated. Each color of red (R), green (G), and blue (B) is input to the image processing apparatus 5 through the interface 21 and the interface 48 in units of one frame. Further, the CCD line sensor 35 of the reflection-type image reading device 30 reads the color image stored in one color print P at a sub-scanning speed lower than that at the time of pre-reading to generate image data, and this image data is Each color of red (R), green (G), and blue (B) is input to the image processing apparatus 5 in pixel units via the interface 41 and the interface 48.

The image data input to the image processing device 5 is first input to the data processing unit 46. When the input image data is generated by reading the color image recorded on the reversal film F, the data processing unit 46 performs negative / positive reversal processing on the image data to generate the negative film F. In the case where it is generated by reading the recorded color image, the image data is output to the arithmetic mean calculating means 49 without executing any processing. Further, when the input image data is the image data transferred from the reflective image reading device 30, the data processing unit 46 changes the number of bits from 12 bits to the transparent image based on the lookup table. The number of bits of the image data transferred from the reading device 10 is changed to 10 bits, and negative / positive inversion processing is further performed, and the image data is output to the arithmetic mean calculation means 49. During the main reading, the arithmetic mean calculation means 49 does not perform arithmetic mean processing on the image data, and all the input image data is the first R line buffer 50.
aR, first G line buffer 50aG, first B line buffer 50aB, second R line buffer 50bR, second G line buffer 50bG, second B
Transferred to the line buffer 50bB and then the first R
Line buffer 50aR, first G line buffer 50
aG, the first B line buffer 50aB, and the second
Are alternately stored in the R line buffer 50bR, the second G line buffer 50bG, and the second B line buffer 50bB, and the first R line buffer 50aR and the first R line buffer 50aR are stored alternately.
G line buffer 50aG, first B line buffer 50aB, and second R line buffer 50bR,
After being temporarily held in the second G line buffer 50bG and the second B line buffer 50bB, they are stored in the second frame memory unit 52 or the third frame memory unit 53.

Here, the image data from the transmissive image reading device 10 is sequentially sent to the image processing device 5 frame by frame for each color of red (R), green (G) and blue (B). Is coming. Therefore, when the R image data is sent to the image processing apparatus 5, the CPU 60 sends the R image data to the first R line buffer 50aR and the second R line buffer 50b.
Alternately stored in R, the first R line buffer 50
After being temporarily held by aR and the second R line buffer 50bR, it is stored in the R data memory 52R of the second frame memory unit 52 or the R data memory 53R of the third frame memory unit 53. Next, the CPU 60 exchanges the G image data and the B image data with each other.
Similarly, in the first G line buffer 50aG and the second G line buffer 50bG, and the first B line buffer 50aB and the second B line buffer 50bB,
Alternately stored, and temporarily held by the first G line buffer 50aG and the second G line buffer 50bG and the first B line buffer 50aB and the second B line buffer 50bB. , G data memory 52G of the second frame memory unit 52 or G data memory 5 of the third frame memory unit 53
3G and B of the second frame memory unit 52
The data is stored in the data memory 52B or the B data memory 53B of the third frame memory unit 53.

From the reflection type image reading device 30,
The image data sent in pixel units for each color is stored in the CPU.
Under the control of 60, the R image data is stored in the first R line buffer 50aR and the second R line buffer 50b.
Alternately to R, G image data is alternately to the first G line buffer 50aG and second G line buffer 50bG, and B image data is to the first B line buffer 50aB.
And are alternately stored in the second B line buffer 50bG. Therefore, in the image processing apparatus 5 of the preferred embodiment of the present invention, the reflection type image reading apparatus 3 is used.
The R image data of the first pixel sent first from 0 is stored in the first R line buffer 50aR, and the G image data of the first pixel sent next is stored in the first G line buffer. The first B line buffer 5 stores the B image data of the first pixel which is stored in 50 aG and is sent third.
0aB, and the R image data of the second pixel sent fourth is stored in the second R line buffer 50bR, and the G image data of the second pixel sent fifth is the second. The B image data of the second pixel sent sixth is stored in the second B line buffer 50bB.
Under the control of 60, the R, G, and B image data from the reflective image reading device 30 is sorted and stored for each color in the line buffer of the corresponding color.

Further, the first R line buffer 50aR
The image data stored in the second R line buffer 50bR is stored in the R data memory 52R of the second frame memory unit 52 or the R data memory 53R of the third frame memory unit 53, and in the first G line. Buffer 50aG and second G line buffer 50b
The image data stored in G is first stored in the G data memory 52G of the second frame memory unit 52 or the G data memory 53G of the third frame memory unit 53.
The image data stored in the B line buffer 50aB and the second B line buffer 50bB are the B data memory 52B of the second frame memory unit 52 or the B data memory 53 of the third frame memory unit 53.
B, respectively, to be transferred and stored. At the time of actual reading, the CPU 60 connects only the frame memory unit of the second frame memory unit 52 and the third frame memory unit 53 capable of writing image data to the input bus 63, and the other frame memory unit. The connection between the first frame memory unit 51 and the input bus 63 is controlled so as to be disconnected. That is, when image data for reproducing a color image is generated, only one of the first frame memory unit 51, the second frame memory unit 52, and the third frame memory unit 53 is input. It is connected to the bus 63 so that the image data is stored only in the frame memory unit. This is the image data corresponding to the color image recorded on the frame with the film F or the color image recorded on one color print P obtained by the actual reading through the output bus 64 and the selector 55. While being transferred to the first image processing means 61, it is possible to execute the pre-reading of the color image recorded on the next frame of the film F or the color image recorded on another color print P, and further by the main reading. Image data corresponding to the obtained color image recorded on a frame of the film F or the color image recorded on one color print P is output to the first image processing means via the output bus 64 and the selector 55. During the transfer to 61, the color image recorded on the next frame of the film F or the color image recorded on another color print P is transferred. Data reading efficiency of the color image reproducing system can be achieved by completing the reading and executing the main reading of the color image recorded on the next frame of the film F or the color image recorded on another color print P. Is to improve.

The image data obtained by the main reading is the R data memory 52R or 53 of the second frame memory unit 52 or the third frame memory unit 53.
After being stored in the R, G data memory 52G or 53R, B data memory 52B or 53B, the image data is
It is output to the first image processing means 61. Here, C is set so that only the image data stored in either the second frame memory unit 52 or the third frame memory unit 53 is output to the first image processing means 61.
The PU 60 controls the selector 55. First
In the image processing means 61, the color density gradation converting means 1
00 converts the density data, color data, and gradation data of the image data according to the look-up table, and the saturation conversion unit 101 converts the saturation data of the image data according to a matrix operation.
Then, according to the size of the color image to be output on the color paper 90, the digital magnification conversion means 102
After the number of pixel data of the image data is increased or decreased, the frequency processing means 103 performs frequency processing such as sharpness enhancement on the image data, and the dynamic range conversion means 104 converts the dynamic range to obtain the data. It is output to the synthesizing means 75.

The operator uses the keyboard 69 to
When an instruction signal indicating that the data should be combined with the image data obtained by reading the color image is input, the CPU 6
The data combining signal is output from 0 to the data combining unit 75, and the data combining unit 75 reads the image data such as a figure or character to be combined with the image data obtained by reading the color image from the combined data memory 76. Synthesize
On the other hand, when no instruction signal is input to the keyboard 69, no processing is executed. After that, the image data is
It is output from the data synthesizing means 75 to the image output device 8. From the data synthesizing means 75 of the image processing device 5 through the interface 77 and the interface 78,
When the image data is input to the image output device 8, the input image data is stored in the image data memory 80 including a plurality of frame memories. Since the reading operation of the color image recorded on the film F or the color print P and the operation of the image output device 8 are not synchronized, the image reading device 1 reads the image and the image processing device 5 receives the image processing. The image data is input to the image output device 8 regardless of the processing of the image output device 8. Therefore, in the present embodiment, the image data memory 80 that stores the image data input from the image processing device 5 is configured by a plurality of frame memories, and the image data is sequentially stored in the frame memory.
Even if the image reading device 1 reads an image at high speed and the image data is sent to the image output device 8, the image output device 8 reproduces the color image on the color paper 90 at a predetermined speed. I guarantee that you can.

Each unit in the image output device 8 is a CPU 79.
When the color paper 90 is pulled out from the magazine 91 and conveyed in the sub-scanning direction along a predetermined conveyance path, the image is synchronized with the image. Image data is read from the data memory 80, converted into an analog signal by the D / A converter 81, and input to the modulator driving means 86 to generate a modulation signal, and at the same time, the semiconductor laser light source 84a.
Red laser light from the semiconductor laser light sources 84b, 84c
Infrared laser light is emitted from the semiconductor laser light source 84
The laser light emitted from the semiconductor laser light source 84c is converted into a green laser light by the wavelength conversion means 85, and the semiconductor laser light source 84c
The laser light emitted by the laser light is converted into blue laser light by the wavelength conversion means 86, and then the red laser light is supplied to the modulator 87R, the green laser light is supplied to the optical modulator 87G, and the blue laser light is supplied to the optical modulator 87B. , Respectively. Modulation signals are input to the optical modulators 87R, 87G, and 87B from the modulator driving means 83, and the intensity thereof is modulated according to the modulation signal, that is, image data, and the laser light is reflected by the reflection mirrors 88R and 88G. , 88B and enters the polygon mirror 89. The polygon mirror 89 is rotated at a predetermined speed, and the laser light is
The polygon mirror 89 scans the surface of the color paper 90 conveyed in the sub-scanning direction through the fθ lens 93 to perform main scanning. Therefore, color paper 7
0 is two-dimensionally exposed by R, G, and B laser beams. To synchronize with the rotation of the polygon mirror 89,
Since the color paper 90 is transported in the sub-scanning direction, the color paper 90 corresponds to the color image recorded on the film F or the color print P.
It will be exposed by laser light.

The color paper 90 thus exposed by the laser beam is sent to the color developing tank 94 for color development, and is bleach-fixed in the bleach-fixing tank 95.
A color image is reproduced on the color paper 90 on the basis of the image data which has been washed in the water 6 and image-processed by the image processing device 5. The color paper 90 which has been subjected to color development processing, bleach-fixing processing and water washing processing has a drying section 97.
After being sent to and dried, the cutter 98 driven in synchronism with the conveyance of the color paper 90 is driven by the cutter 98 based on the reference holes formed in the side edges of the color paper 90, or one film F or one sheet. Is cut to a length corresponding to the color image recorded on the color print P of the
And is collected for each customer or for each customer corresponding to one film F. According to this embodiment, the image processing device 5 uses the R, G, and B image data sent for each pixel as the R data memory 51R and the G data memory 51G.
And a first frame memory unit 51 having a B data memory 51B, an R data memory 52R, a second frame memory unit 52 having a G data memory 52G and a B data memory 52B or an R data memory 53.
R, G data memory 53G and B data memory 53B
Since the third frame memory unit 53 having the above is provided with the format changing means for selectively storing the image data and the data processing means 46 capable of changing the number of bits of the image data, Image processing can be performed in the same manner whether it is generated by the transmissive image reading device 10 or by the reflective image reading device 30.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. It goes without saying that it is a thing. For example, in the above-described embodiment, the image data generated by the reflection-type image reading device 30 is transferred to the image processing device 5 for each pixel, but the format changing means is transferred in line units. , R data memory 51R, a first frame memory unit 51 having a G data memory 51G and a B data memory 51B, an R data memory 52R, a G data memory 52G and a B data memory 52B. A second frame memory unit 52 or a third R data memory 53R, a G data memory 53G and a B data memory 53B.
If the image data is selectively stored in the frame memory unit 53, the image data from the reflection-type image reading device 30 is converted into the R image data of the first line,
Line G image data, first line B image data, then second line R image data, second line G image data, second line B image data, red ( You may make it transfer to the image processing apparatus 5 line by line for every image data of R), green (G), and blue (B).

Further, in the above embodiment, the CPU 26 and the CPU 46 control the light amount adjusting unit 12 and the light amount adjusting unit 34 based on the image data obtained by the pre-reading to adjust the light amount in the main reading, and at the same time, perform the main reading. CCD area sensor 1
5 and the storage time of the CCD line sensor 35 are controlled, the light amount adjusting unit 12 and the light amount adjusting unit 34 may be controlled to adjust only the light amount in the main reading, or the CCD area sensor 15 in the main reading. Alternatively, only the storage time of the CCD line sensor 35 may be controlled. Furthermore, in addition to or instead of these, the CCD area sensor 1
5 and the clock speed of the CCD line sensor 35 may be controlled. Further, in the above embodiment, the first image processing means 61 is the color density gradation converting means 1.
00, saturation conversion means 101, digital magnification conversion means 1
02, frequency processing means 103 and dynamic range conversion means 104, and the input image data undergoes color density gradation conversion, saturation conversion, magnification conversion, frequency processing and dynamic range conversion in this order. However, if the magnification conversion is performed prior to the frequency processing, the order of image processing by other processing means can be arbitrarily changed.

Further, in the above embodiment, the color image is reproduced on the color paper 90, but the color image is reproduced only on the CRT 68.
It may not be played back above zero. Further, in the present invention, the term "means" does not necessarily mean physical means, but also includes the case where the function of each means is realized by software. Further, the function of one means may be realized by two or more physical means, or the functions of two or more means may be realized by one physical means.

[0051]

According to the present invention, there is provided an image processing apparatus capable of performing image processing on image data transferred in different formats as desired and reproducing a high quality color image. Is possible.

[Brief description of drawings]

FIG. 1 is a block diagram of a color image reproduction system including an image processing apparatus according to a preferred embodiment of the present invention.

FIG. 2 is a schematic diagram of a transmissive image reading apparatus for a color image reproducing system that generates image data to be processed by the image processing apparatus according to the embodiment of the present invention.

FIG. 3 is a schematic diagram of a reflection type image reading apparatus for a color image reproducing system including an image processing apparatus according to a preferred embodiment of the present invention.

FIG. 4 is a block diagram of an image processing apparatus 5 according to a preferred embodiment of the present invention.

FIG. 5 is a block diagram of an image processing apparatus 5 according to a preferred embodiment of the present invention.

FIG. 6 shows a first frame memory unit, a second frame memory unit
3 is a block diagram showing details of a frame memory unit and a third frame memory unit of FIG.

FIG. 7 is a schematic diagram of an image output device for a color image reproduction system that reproduces a color image on a color paper based on image data processed by the image processing device according to the preferred embodiment of the present invention. is there.

FIG. 8 is a schematic view of a laser light irradiation unit of the image output device.

FIG. 9 is a block diagram showing details of first image processing means.

[Explanation of reference symbols] F film P Color print 1 Image reading device 5 Image processing device 8 Image output device 10 Transmission type image reading device 11 Light source 12 Light intensity adjustment unit 13 Color separation unit 14 Diffusion unit 15 CCD area sensor 16 Lens 17 Amplifier 18 A / D converter 19 CCD correcting means 20 Log converter 21 Interface 22 Carrier 23 Motor 24 Drive roller 25 Screen detection sensor 26 CPU 30 Reflective image reading device 31 Light source 32 Mirror 33 Color balance filter 34 Light intensity adjustment unit 35 CCD area Sensor 36 Lens 37 Amplifier 38 A / D converter 39 CCD correction means 40 Log converter 41 Interface 46 CPU 48 Interface 49 Addition / averaging calculation means 50a First line Buffer 50aR First R line buffer 50aG First G line buffer 50aB First B line buffer 50b Second line buffer 50bR Second R line buffer 50bG Second G line buffer 50bB Second B line buffer 51 First frame memory unit 51R R data memory 51G G data memory 51B B data memory 52 Second frame memory unit 52R R data memory 52G G data memory 52B B data memory 53 Third frame memory unit 53R R data memory 53G G Data memory 53B B data memory 55 Selector 60 CPU 61 First image processing means 62 Second image processing means 63 Input bus 64 Output bus 65 Data bus 66 Memory 67 Hard disk 68 C RT 69 keyboard 70 communication port 75 data composition means 76 composition data memory 76RR data memory 76G G data memory 76B B data memory 77 interface 78 interface 79 CPU 80 image data memory 81 D / A converter 82 laser light irradiation means 83 Modulator driving means 84a, 84b, 84c Semiconductor laser light source 85, 86 Wavelength converting means 87R, 87G, 87B Optical modulator 88R, 88G, 88B Reflecting mirror 89 Polygon mirror 90 Color paper 91 Magazine 92 Drilling means 93 fθ lens 94 Color development Tank 95 Bleaching / fixing tank 96 Washing tank 97 Drying section 98 Cutter 99 Sorter 100 Color density gradation converting means 101 Saturation converting means 102 Digital magnification converting means 103 Frequency processing means 104 Dynamism Range conversion means

Claims (3)

[Claims] 1. An image processing apparatus for a color image reproduction system for photoelectrically reading a color image to generate image data, performing image processing on the generated image data, and reproducing the color image. Image data corresponding to red (R), green (G), and blue (B)
An R data memory, a G data memory, and a B data memory that can be stored are provided, and image data corresponding to the red (R), green (G), and blue (B) can be stored in the R data memory, the G data memory, and the B data. An image processing apparatus, comprising a format changing unit for selectively and sequentially storing the memory. 2. A data processing means capable of converting the number of bits of image data is further provided.
An image processing apparatus according to claim 1. 3. The image processing apparatus according to claim 2, wherein the data processing unit is further configured to be capable of performing negative / positive inversion processing on image data.