JP3471833B2 - Image processing apparatus and color adjustment method thereof - Google Patents

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 its color adjusting method.

[0002]

2. Description of the Related Art Color adjustment and the like in an image processing apparatus have been performed by a user operating an adjustment item set by the convenience of the apparatus via an operation unit. In recent years, user-friendly operability has been demanded, and there is a remarkable tendency to realize operability in consideration of the user's position, such as grouping a series of adjustment items and assigning them to one key.

The method of grouping a series of adjustment items and assigning them to one key is effective for realizing user-friendly operability, but is not suitable for finer adjustment, and a user who is accustomed to the operation If you want more complicated adjustments, it will hinder them.

Further, for example, when adjusting the intensity of the development color signal (hereinafter referred to as "color balance adjustment"), the development colors of the image processing apparatus are cyan (C), magenta (M) and yellow.
Although each intensity of (Y) and black (Bk) will be adjusted, for users who do not have knowledge of printing technology,
Color balance adjustment by CMYBk is very difficult to understand. For such users, rather, red,
The color mixture obtained by mixing paints such as blue, green, and yellow is easier to understand, and an image processing apparatus adopting such an adjusting method has been proposed.

[0005]

However, even in the method for adjusting the color balance by mixing the colors of the above-mentioned paints,
It is not always possible to make adjustments to the color that the user likes. In addition, as long as such adjustment method is used, CMYB
I am still unfamiliar with adjusting the color balance with k.

For example, there is provided an image processing apparatus in which a conventional adjustment method such as color balance adjustment by CMYBk and a user-friendly adjustment method such as color balance adjustment by color mixture of paints are provided, and user-friendly adjustment is provided. After making a rough adjustment by the method, if fine adjustment is desired, it is possible to make an adjustment by a conventional adjusting method. However, if such a plurality of adjustment modes are provided, it is necessary to switch between the rough adjustment mode and the fine adjustment mode, even though the same color balance adjustment is performed, and the adjustment color differs depending on the mode, which is complicated. It will force the user to make adjustments.

The present invention is intended to solve the above-mentioned problems, and an object of the present invention is to enable user-friendly color adjustment and detailed color adjustment, and also to have a function of allowing a user to learn knowledge about color adjustment. .

[0008]

[0009]

The present invention has the following structure as one means for achieving the above object.

An image processing apparatus of the present invention for forming a color image using a plurality of developing colors, wherein the plurality of developing colors are set on the basis of a density set value for each of the plurality of developing colors set in a data work. Display means for generating an image showing the setting contents of the density for each color and displaying it on the display section, input means for inputting information on the density of a color different from the plurality of developing colors, and input by the input means. According to the information, when the default value is added to or subtracted from the density setting value for each of the plurality of developing colors set in the data work, each setting value is the maximum or minimum value of the density of each developing color. If it exceeds, the maximum value or the minimum value is set as a set value, and if not exceeded, a value obtained by adding or subtracting the default value to the set value set in the data work is set. And an updating unit that writes the data to the data work, and the display unit sets the density setting contents for each of the plurality of developing colors each time the setting values of the density of the plurality of developing colors are updated by the updating unit. Is generated and displayed on the display unit.

A color adjusting method of an image processing apparatus for forming a color image using a plurality of developing colors according to the present invention, wherein the method is based on a set value of density for each of the plurality of developing colors set in a data work. An image representing the setting content of the density for each of the plurality of developing colors is generated and displayed on the display unit, and it is possible to input information regarding the density of a color different from the plurality of developing colors,
According to the input information, when a predetermined value is added to or subtracted from the density setting value for each of the plurality of developing colors set in the data work, each setting value is the maximum value of the density of each developing color. Or check if it exceeds the minimum value,
If it exceeds, the maximum value or the minimum value is set as a set value, and if not exceeded, a value obtained by adding or subtracting the default value to or from the set value set in the data work is written as a set value in the data work, Each time the set value of the density of the developing color is updated, an image showing the setting content of the density for each of the plurality of developing colors is generated and displayed on the display unit.

[0012]

[0013]

[0014]

[0015]

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An image processing apparatus according to an embodiment of the present invention will be described in detail below with reference to the drawings. In the following description, color balance adjustment in a full-color copying machine will be described as an example of color adjustment, but the present invention is not limited to this.

[0017]

First Embodiment [Outline of Apparatus] FIG. 14 is a schematic view showing a configuration example of an operation unit in the first embodiment. In FIG. 14, reference numeral 401 is a ten-key pad, 402 is a reset key, and these keys are used to set the device and reset the operation. Reference numeral 403 is a copy start key. By pressing this key, each setting described later is performed and the copy operation is started. A display unit 404 having a liquid crystal display unit displays a bit image of the video memory 11c described later. In addition, the display unit 404
Is equipped with a touch panel with a key layout corresponding to the display. Input using the touch panel keys is
Similarly to the key input with the copy star and the key 403, it is sent to the key input determination unit 1a described later. Reference numeral 405 is a display example displayed on the display unit 404.

FIG. 15 is a schematic view of the copying machine of the first embodiment. In FIG. 15, 101 is a platen glass on which a document 102 whose image is to be read is placed. The original 102 is illuminated by the light of the illumination 103, and the reflected light from the original 102 is reflected by the mirror 10.
An image is formed on a CCD 108 by an optical system 107 via 4, 105 and 106. Due to the motor 109, the mirror unit 110 with the illumination 103 and the mirror 104 is at speed V,
The mirror unit 111 having the above is mechanically driven at a speed of V / 2, and the entire surface of the original 102 is scanned.

An image processing circuit 112 processes the image information read by the CCD 108 as an electric signal and outputs it as a print signal. Reference numerals 113 to 116 denote semiconductor laser elements, which are driven by a print signal output from the image processing circuit 112 to output laser light. The output laser beams are scanned by the polygon mirrors 117 to 120, respectively, and electrostatic latent images are formed on the photosensitive drums 125 to 128.
Denoted at 121 to 124 are developing devices for developing the electrostatic latent images with Bk, Y, C, and M color toners, respectively, and the developed toner images of the respective colors are transferred to the recording paper to obtain a full-color copy result.

Recording paper supplied from any of the paper cassettes 129 to 131 and the manual feed tray 132 is adsorbed on the transfer belt 134 via the registration rollers 133 and conveyed. The photosensitive drum 12 is synchronized with the recording paper supply timing.
From 8 to 125, the toner images of the respective colors are developed, and the toner images are transferred onto the recording paper as the recording paper is conveyed.

The recording paper on which the toner images of the respective colors have been transferred is separated from the transfer belt 134 and conveyed, and after the toner is recorded and fixed by the fixing device 135, the recording paper is discharged to the paper discharge tray 136.

Further, 137 to 140 are hoppers for replenishing the toners of the respective colors to the developing devices 121 to 124 of the corresponding colors, respectively, and the toners of Bk, Y, C and M colors to be replenished are stored therein. There is. 141 to 144 are hoppers
Replenishment screws for replenishing the toner in 137 to 140 to the corresponding developing units 121 to 124, and replenish a certain amount of toner to the developing units 121 to 124 each time rotation is given by a motor (not shown). 145 to 148 are
A developing sleeve that supplies the toner in the corresponding developing devices 121 to 124 to the corresponding photosensitive drums 125 to 128.

[Image Processing Circuit] FIG. 16 is a block diagram showing a configuration example of the image processing circuit 112.
The flow of the image signal until the image information output from the CD 108 is processed as an electric signal and the print signal is output is shown.

In FIG. 16, the image signal output from the CCD 108 is sampled and held by the analog-digital conversion and sample and hold (A / D & S / H) circuit 202.
It is A / D converted and converted into a digital image signal which is a color separation signal of RGB three colors. The digital image signal is subjected to shading correction and black correction by the shading correction circuit 203, NTSC correction by the input masking circuit 204, and scaling processing such as scaling by the scaling processing circuit 205.
It is sent to the companding unit 209.

The image signal input to the companding unit 209 is image data compressed by the encoder unit 206 and stored in the memory unit 207. The compressed image data stored in the memory unit 207 is expanded by the decoder unit 208 in accordance with the formation timing of the electrostatic latent image of each color in the printer unit, and the companding unit 209.
Are output as image signals 213 to 216.

The image signal output from the companding unit 209 is subjected to luminance-density conversion processing, UCR processing and masking processing in the masking UCR circuit 210 and converted into an image signal indicating each color component of CMYBk. The image signal output from the masking UCR circuit 210 is gamma-corrected by the gamma-correction circuit 211, edge-emphasized by the edge-enhancement circuit 212, and sent to the printer unit.

FIG. 17 is a block diagram showing the flow of image signals in the printer section. The image signal sent from the image processing circuit 112 is gamma-corrected by the gamma correction circuit 301 according to the sensitivity of each photoconductor. After that, the image signals of the M and C color components are input to the pulse width modulation circuit 304 via the FIFO memory 302, while the image signals of the Y and Bk color components are
It is input to the pulse width modulation circuit 306 via the LIFO memory 303,
Each is converted into a pulse signal having a pulse width corresponding to the gradation. These pulse signals are output by the laser drivers 305 and 307.
Is input to the semiconductor laser device, and laser light corresponding to the pulse width is output from the semiconductor laser device.

[Control and Display] FIG. 1 is a block diagram showing a configuration example of the operation unit. In FIG. 1, the key input from the touch panel keys arranged on the display unit 404 is sent to the key input determination unit 1a without being distinguished from the key input from the ten-key pad 401 or the copy start key 403. The key input determination unit 1a performs chattering prevention processing, and inputs to the key input processing unit 1b information indicating from which key the input is made and a key code determined by the state of the device at the time of key input.

The key input processing section 1b determines the instructed processing from the input key code and the state of the device at the time of key input, and sets data in the data work 1c if necessary. Unless otherwise specified, the processes shown in the flowcharts described later are the processes in the key input processing unit 1b.

The display processing unit 1d includes a display unit 40
When it is determined that the setting of the data work 1c has changed with respect to the setting contents currently displayed in 4, the bit image is expanded in the video memory 11c in order to display the display 1e according to the new setting contents on the display unit 404.

FIG. 2 is a diagram showing an example of the display 1e. A series of adjustments are collectively assigned to each key indicated by reference numerals 2a and 2b on the right side of FIG. On the other hand, each bar indicated by reference numeral 2e on the left side of FIG. 2 is a color balance indicator showing the intensity of each developing color, and each key indicated by reference numerals 2c and 2d is for adjusting the intensity of each developing color.

FIG. 3 is a flow chart showing an example of the processing when the "strong redness" key 2b is pressed, which is the processing executed every time the "stronger redness" key 2b is pressed.
5 and 6 show examples of transition states of the display 1e when the "strong redness" key 2b is pressed. There are two methods of increasing yellow and magenta and a method of weakening cyan, which are independent of each other, to increase the redness, but in the present embodiment, “increase redness”.
Both are performed, as shown in FIG. 5, to indicate to the user that there are two ways when the key 2b is pressed.

FIG. 4 is a flow chart showing an example of processing when the "strong magenta" key 2d is pressed, which is executed every time the "strong magenta" key 2d is pressed. Further, FIG. 7 shows an example of a transition state of the display 1e when the “strongly magenta” key 2d is pressed.

When the user presses the "increase redness" key 2b, the key input determination unit 1a sends the key code generated from the key code table at that time to the key input processing unit 1b. The key input processing unit 1b reads the current setting data of yellow from the data work 1c according to the flowchart shown in FIG. 3, and determines whether or not the setting value exceeds the upper limit when the yellow value is increased in step S31. . If the set value of yellow exceeds the upper limit, step S33.
Then, write the maximum value as a new setting value of yellow to the data work 1c, and if it does not exceed the upper limit, step S32
Then, a value obtained by adding a predetermined value to the current set value of yellow is written in the data work 1c as a new set value of yellow.

Then, the key input processing unit 1b reads out the current setting data of magenta from the data work 1c, and in step S34, it is determined whether or not the setting value exceeds the upper limit when the magenta is increased. If the magenta setting value exceeds the upper limit, the maximum value is written in the data work 1c as a new magenta setting value in step S36, and if it does not exceed the upper limit, the current magenta setting value is determined in step S35. The added value is written to the data work 1c as a new setting value of magenta.

Subsequently, the key input processing unit 1b reads out the current setting data of cyan from the data work 1c, and in step S37, it is determined whether or not the setting value falls below the lower limit when the cyan is weakened. If the set value of cyan falls below the lower limit, in step S39, write the minimum value as a new set value of cyan into the data work 1c, and if it does not fall below the lower limit, the current cyan set value is set in step S38. The value obtained by subtracting a predetermined value from is written in the data work 1c as a new setting value of cyan.

Through the above processing, the display 1e is displayed as shown in FIG.
As shown in 5, the state 5.1 before the “strong redness” key 2b is pressed is changed to the state 5.2 after the key 2b is pressed.

On the other hand, when the user presses the "strengthen magenta" key 2d, the key input determination unit 1a sends the key code generated from the key code table at that time to the key input processing unit 1b. The key input processing unit 1b reads the current setting data of magenta from the data work 1c according to the flowchart shown in FIG. 4, and determines whether or not the setting value exceeds the upper limit when the magenta is increased in step S41. . If the magenta setting value exceeds the upper limit, the maximum value is written to the data work 1c as a new magenta setting value in step S43, and if it does not exceed the upper limit, the current magenta setting value is determined in step S42. The added value is written to the data work 1c as a new setting value of magenta.

By the above processing, the display 1e is displayed as shown in FIG.
As shown in FIG. 7, the state 5.3 before the “strongly magenta” key 2d is pressed is changed to the state 5.5 after the key is pressed.

The display processing unit 1d periodically refers to the data work 1c to rewrite the video memory 11c of the data work 1c. As a result, when the "strong redness" key 2b is pressed, the yellow and magenta bars of the color balance indicator 2e expand and the cyan bar contracts in real time. When the "Strengthen red" key 2b is pressed, the color balance indicator 2
The yellow and magenta bars of e grow further and the cyan bars shrink more.

When the copy start key 403 is pressed, the key input processing section 1b causes the data work 1c to CMYBk
Each setting data is read, and the masking table of the masking UCR circuit 210 is rewritten based on the read data. As a result, when the "stronger redness" key 2b is pressed, an image with stronger redness is formed. The same applies when a key corresponding to another color is pressed.

As described above, according to the first embodiment, the user-friendly color adjustment for making red, blue and yellow stronger or weaker without changing the adjustment mode, and
It is possible to perform detailed color adjustment for each of the toner colors yellow, magenta, cyan, and black, and it is also possible to provide a function for allowing the user to learn knowledge about color adjustment.

[0043]

[Second Embodiment] In the first embodiment described above, an example in which a predetermined value is added to or subtracted from the set value of CMYBk for one key input has been described, but in the second embodiment, the key is pressed. An embodiment will be described in which the detection means for detecting the pressing strength is used to change the increase / decrease value according to the pressing strength of the key. In addition,
Since the outline, block diagram and display example of the device are the same as those in the first embodiment, the description thereof will be omitted, and control and display 1e by the key input processing unit 1b different from the first embodiment will be omitted.
The transition of is explained.

FIG. 8 is a flow chart showing an example of processing when the "stronger redness" key 2b is pressed, which is executed every time the "stronger redness" key 2b is pressed.
Further, FIG. 10 shows an example of the transition state of the display 1e when the “strong redness” key 2b is pressed. In order to increase the redness, there are two methods that are independent of each other, that is, a method of increasing yellow and magenta, and a method of weakening cyan, but similar to the first embodiment, in the second embodiment, "redness is Both are done, as shown in FIG. 10, to imply to the user that there are two ways to press the "strengthen" key 2b.

FIG. 9 is a flow chart showing an example of processing when the "strong magenta" key 2d is pressed, which is executed every time the "strong magenta" key 2d is pressed. Further, FIG. 11 shows an example of a transition state of the display 1e when the “strongly magenta” key 2d is pressed.

When the user presses the "strengthen redness" key 2b, the key input determination unit 1a causes the A / D converter (not shown) to input information indicating that there is an input from the "strengthen redness" key 2b. It is sent to the key input processing unit 1b as the key input information together with the pressing strength information from. According to the flowchart shown in FIG. 8, the key input processing unit 1b, in step S61, acquires the increase / decrease value of yellow corresponding to the pressure intensity information by referring to the table or by calculation.

Next, the current setting data of yellow is read from the data work 1c, and it is determined in step S62 whether or not the setting value exceeds the upper limit when yellow is strengthened. If the set value of yellow exceeds the upper limit, the maximum value is written to the data work 1c as a new set value of yellow in step S64, and if it does not exceed the upper limit, the current set value of yellow is acquired in step S63. The value obtained by adding the increased / decreased value is written in the data work 1c as a new setting value for yellow.

Then, the key input processing unit 1b proceeds to step S6.
In step 5, the magenta increase / decrease value corresponding to the pressure intensity information is acquired by referring to the table or by calculation. next,
The current setting data of magenta is read from the data work 1c, and in step S66, it is determined whether the setting value exceeds the upper limit when magenta is increased. If the magenta setting value exceeds the upper limit, the maximum value is set as the new magenta setting value in the data work in step S68.
If the upper limit is not exceeded, the value obtained by adding the obtained increase / decrease value to the current magenta setting value is written in the data work 1c as a new magenta setting value in step S67.

Then, the key input processing unit 1b proceeds to step S6.
At 9, the increase / decrease value of cyan corresponding to the pressure intensity information is acquired by referring to the table or by calculation. Next, the current setting data of cyan is read from the data work 1c, and in step S610, it is determined whether or not the setting value exceeds the upper limit when the cyan value is increased. If the set value of cyan exceeds the upper limit, the minimum value is written to the data work 1c as a new set value of cyan in step S612, and if it does not exceed the upper limit, it is obtained from the current set value of cyan in step S611. The value obtained by subtracting the increased / decreased value is written in the data work 1c as a new setting value of cyan.

With the above processing, the display 1e is displayed as shown in FIG.
As shown in 10, the state is changed from 8.1 before the "strong redness" key 2b is pressed to 8.2 after the key is pressed weakly or to 8.3 after the key is pressed strongly.

On the other hand, when the user presses the "strengthen magenta" key 2d, the information indicating that there is an input from the "strengthen magenta" key 2d, together with the pressing strength information from the A / D converter (not shown), It is sent to the key input processing unit 1b as key input information. According to the flowchart shown in FIG. 9, the key input processing unit 1b obtains the magenta increase / decrease value corresponding to the pressure intensity information by referring to the table or by calculation in step S71.

Next, the key input processing unit 1b reads the current setting data of magenta from the data work 1c according to the flowchart shown in FIG. 9, and if the magenta is increased in step S72, the setting value exceeds the upper limit. Or not. If the set value of magenta exceeds the upper limit, the maximum value is written to the data work 1c as a new set value of magenta in step S74, and if it does not exceed the upper limit, the current magenta set value is increased or decreased in step S73. Data work with the added value as a new setting value for magenta
Write to 1c.

By the above processing, the display 1e
From the state 8.1 before the `` strong magenta '' key 2d was pressed, to the state 8 after the key was weakly pressed as shown in Fig. 11.
Change to 4 or to 8.5 after pressing the key hard.

As described above, according to the second embodiment, the same effect as that of the first embodiment can be obtained, and by detecting the strength with which the key is pressed, the color adjustment can be performed according to the strength with which the key is pressed. It is possible to do.

[0055]

[Third Embodiment] In the above-described first embodiment, an example in which a predetermined value is added to or subtracted from the set value of CMYBk for one key input is explained, but in the third embodiment, the key is An embodiment in which the setting value can be changed according to the time when the key is pressed by using the detection unit that detects the time when the key is pressed will be described. Note that the outline, block diagram, and display example of the device are the same as those in the first embodiment, and therefore their description is omitted, and the key input processing unit 1b different from that in the first embodiment.
The control by will be described.

FIG. 12 is a flow chart showing an example of processing when the "strong redness" key 2b is pressed, which is executed every time the "stronger redness" key 2b is pressed.

When the user presses the "strengthen redness" key 2b, the key input determination unit 1a sends information indicating that the "strengthen redness" key 2b has been pressed to the key input processing unit 1b. . The key input processing unit 1b reads the current setting data of yellow from the data work 1c according to the flowchart shown in FIG. 12, and determines whether or not the setting value exceeds the upper limit when the yellow value is increased in step S131. . If the set value of yellow exceeds the upper limit, in step S133, the maximum value is set as the new set value of yellow in the datawork 1c.
If the upper limit is not exceeded, a value obtained by adding a predetermined value to the current yellow set value is written in the data work 1c as a new yellow set value in step S132.

Subsequently, the key input processing unit 1b reads out the current setting data of magenta from the data work 1c, and in step S134, it is determined whether or not the setting value exceeds the upper limit when the magenta is increased. If the magenta setting value exceeds the upper limit, the maximum value is written in the data work 1c as a new magenta setting value in step S136, and if it does not exceed the upper limit, the current magenta setting value is determined in step S135. The added value is written to the data work 1c as a new setting value of magenta.

Subsequently, the key input processing unit 1b reads out the current setting data of cyan from the data work 1c, and in step S371, it is determined whether or not the setting value falls below the lower limit when the cyan is weakened. If the set value of cyan falls below the lower limit, in step S139, write the minimum value as a new set value of cyan to the data work 1c, and if it does not fall below the lower limit, in step S138, the current set value of cyan The value obtained by subtracting a predetermined value from is written in the data work 1c as a new setting value of cyan.

Next, the key input processing unit 1b proceeds to step S131.
At 0, according to the information sent from the key input determination unit 1a,
It is determined whether or not the "intensify redness" key 2b has been released, and if the key has been released, the process ends, and if the key is still pressed, after waiting for a predetermined time in step S1311, The process returns to step S131.

FIG. 13 is a flow chart showing an example of processing when the "strong magenta" key 2d is pressed, which is executed every time the "strong magenta" key 2d is pressed.

When the user presses the "strengthen magenta" key 2d, the key input determination unit 1a "strengthens magenta".
Information indicating that the key 2d is pressed is sent to the key input processing unit 1b. The key input processing unit 1b reads out the current setting data of magenta from the data work 1c according to the flowchart shown in FIG. 13, and in step S141, it is determined whether or not the setting value exceeds the upper limit when the magenta is increased. . If the magenta setting value exceeds the upper limit, step S143
Then, write the maximum value as a new setting value of magenta to the data work 1c, and if it does not exceed the upper limit, step S142
Then, a value obtained by adding a predetermined value to the current magenta setting value is written in the data work 1c as a new magenta setting value.

Next, the key input processing unit 1b proceeds to step S144.
Then, according to the information sent from the key input determination unit 1a,
It is determined whether or not the "increase magenta" key 2d has been released, and if the key has been released, the process ends, and if the key is still pressed, after waiting for a predetermined time in step S145, the process is performed. To step S141.

As described above, according to the third embodiment, the same effect as that of the first embodiment can be obtained, and the color adjustment can be performed according to the time when the key is pressed.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of one device. Further, it goes without saying that the present invention can be applied to the case where it is achieved by supplying a program to a system or an apparatus.

[0066]

As described above, according to the present invention,
The user-friendly color adjustment and the detailed color adjustment can be performed, and the user can also have a function of learning knowledge about color adjustment.

[0067]

[Brief description of drawings]

FIG. 1 is a block diagram showing an internal configuration of a copying machine according to a first embodiment.

FIG. 2 is a diagram showing a display example of a display 1e according to the first embodiment.

FIG. 3 is a flowchart illustrating an operation of pressing a key 2b (“stronger redness”) according to the first embodiment.

FIG. 4 is a flowchart illustrating an operation of pressing a key 2d (“strongly magenta”) according to the first embodiment.

FIG. 5 is a diagram showing a display transition according to a key press according to the first embodiment.

FIG. 6 is a diagram showing a display transition according to a key press according to the first embodiment.

FIG. 7 is a diagram showing a display transition according to a key press according to the first embodiment.

FIG. 8 is a flowchart illustrating an operation performed by pressing a key 2b (“stronger redness”) according to the second embodiment.

FIG. 9 is a flowchart illustrating an operation performed by pressing a key 2d (“strongly magenta”) according to the second embodiment.

FIG. 10 is a diagram showing a display transition according to a key press according to the second embodiment.

FIG. 11 is a diagram showing a display transition according to a key press according to the second embodiment.

FIG. 12 is a flowchart illustrating an operation performed by pressing a key 2b (“stronger redness”) according to the third embodiment.

FIG. 13 is a flowchart illustrating an operation of pressing a key 2d (“strongly magenta”) according to the third embodiment.

FIG. 14 is an external view showing a configuration of an operation unit according to the first embodiment of the present invention.

FIG. 15 is a schematic view of a copying machine according to the first embodiment.

FIG. 16 is a diagram showing a configuration of an image processing circuit unit 112 according to the first embodiment.

FIG. 17 is a diagram showing the flow of image data in the printer unit according to the first embodiment.

[Explanation of symbols]

1a Key input judgment section 1b Key input processing unit 1c Data work 1d Display processing unit 1e display 11c video memory 101 Platen glass 102 manuscript 103 lighting 104,105,106 Mirror 107 Optical system 108 CCD 109 motor 110 mirror unit 111 Second mirror unit 112 Image processing circuit section 113, 114, 115, 116 Semiconductor laser 117,118,119,120 Polygon mirror 121,122,123,124 developing device 125,126,127,128 Photosensitive drum 129, 130, 131 Paper cassette 132 bypass tray 133 Registration roller 134 Transfer belt 135 Fixer 136 output tray 137,138,139,140 Hopper 141, 142, 143, 144 Supply screw 145, 146, 147, 148 Development sleeve 202 A / D & S / H circuit 203 Shading correction circuit 204 Input masking circuit 205 scaling processing circuit 209 Drawing part 210 Masking / UCR circuit 211 γ correction circuit 212 Edge enhancement circuit 301 γ correction circuit 302 FIFO 303 LIFO 304, 306 Pulse width modulation circuit 305,307 Laser driver 401 numeric keypad 402 Reset key 403 Copy start key 404 display unit 405 display example

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Claims (7)

(57) [Claims] 1. An image processing apparatus for forming a color image using a plurality of developing colors, wherein each of the plurality of developing colors is based on a set value of density for each of the plurality of developing colors set in a data work. Display means for generating an image representing the setting content of the density and displaying it on the display section; input means capable of inputting information regarding the density of a color different from the plurality of developing colors; and information input by the input means. According to, when the default value is added to or subtracted from the set value of the density for each of the plurality of developing colors set in the data work , each set value is
Whether exceeds the maximum or minimum density of each developed color
Check, and if it exceeds, the maximum value or the maximum
Set a small value as the set value, and if it does not exceed the set value
The default value is added to or subtracted from the set value set in
Updating means for writing a value to the data work as a set value , the display means, for each of the plurality of developing colors, each time the set value of the density of the plurality of developing colors is updated by the updating means. An image processing apparatus, which is configured to generate an image representing a setting content of density and display the image on a display unit. 2. The plurality of development colors are yellow colors
(Y), cyan (C), magenta (M) and black (B
The image processing device according to claim 1, wherein the image processing device is k). 3. The image processing apparatus according to claim 1, wherein the color different from the plurality of development colors is red. 4. The image processing apparatus according to claim 1, wherein the color different from the plurality of development colors is blue. 5. The image processing apparatus according to claim 1, wherein the display unit further displays an image corresponding to the input unit on a display unit. 6. The image processing apparatus according to claim 1, wherein the input unit can independently input information regarding the densities of the plurality of developing colors. 7. A color adjusting method for an image processing apparatus for forming a color image by using a plurality of developing colors, wherein the plurality of developing colors are set based on a set value of density for each of the plurality of developing colors set in a data work. for each developing color by generating an image representing the settings of the concentration is displayed on the display unit of the enabling input of information relating to the concentration of a color different from the plurality of developing colors, depending on the information to be the input, set in the data work
The default value for the density setting value for each of the developed colors
When added or subtracted, each set value is the density of each developed color.
Check if the maximum or minimum value of is exceeded,
If it exceeds, the maximum value or the minimum value shall be the set value.
If not exceeded, the settings set in the above data work
Set value is the value obtained by adding or subtracting the above default value
Writing in the data work, and each time the set value of the density of the plurality of development colors is updated, an image representing the content of the density setting for each of the plurality of development colors is generated and displayed on the display unit. How to adjust the color.