JPH0690497B2 - Solid mesh film making device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an apparatus for performing plate making of a portion of a printed matter having a constant color, that is, a so-called solid mesh portion by a computer.

(Prior Art) A large number of plain net parts are present in a color printed matter, but the plate making process of this plain net part is carried out in a special process different from the general color part, so-called tone making plate making process.

FIG. 11 is a schematic diagram showing an example of a printed matter of the plain net portion, and the plate making process of the plain net portion will be described below with reference to the drawings.

In the printed matter shown in the figure, the pattern A representing a person is an area A1.
~ Color coded to A5. As shown in the figure, the color of each area is formed in the ratio of Y (yellow), M (magenta), C (cyan), and K (black).
For example, "Y10", "M50", "C20" indicating the color of area A1
Is the area ratio of halftone dots in each Y, M, and C decomposition version of the printing, expressed as a percentage (hereinafter referred to as "halftone%").
%, 50%, 20%. Therefore,
In order to make a separation plate of each color in the plate making process for making a printed matter as shown in the figure, a mask for extracting the same halftone dot area and a desired halftone dot on the transparent film are evenly provided. A number of types (hereinafter referred to as "flat screens") were prepared, and the mask and the flat screen were overlapped on the exposure film for each net% of each color, and the exposure was repeated.

And as a means to improve such complicated work,
The line image drawn on the block copy document is read by a scanner, etc., and based on the read image data, a color instruction is given to each area of the image displayed on the display using a computer, and the color of each color is directly specified. An apparatus for producing a disassembled version has been proposed by the present applicant as the invention of Japanese Patent Application No. 60-213259 or Japanese Patent Application No. 60-270501. Here, regarding the color designation of each area of the image displayed on the display, in the apparatus of Japanese Patent Application No. 60-213259, the color number registered in the color table is designated for each area of the image.
In the device No. 60-270501, a color corresponding to the halftone dot color registered in the color table is displayed on the display, and each area of the image on the display is colored with this displayed color. The color is specified by.
In the case of actually giving a color instruction, it is necessary to determine whether the color instruction has been completed or not yet, and whether or not the color instruction has been performed correctly. 60
It is desirable to color-paint each area of the image on the display like the device of -270501.

(Problems to be Solved by the Invention) However, in the device of Japanese Patent Application No. 60-213259,
The color displayed on the display for color painting is simply associated with the halftone dot% registered in the color table.If the difference in halftone dot percentage is small, almost the same color is displayed on the display. There is a problem that it is difficult to distinguish visually and the color painting process on the display is apt to be erroneous.

The present invention has been made in view of the above-described problems, and relates to color painting of an image on a display for creating a solid halftone film, even if the halftone dot difference registered in the color table is small. It is an object of the present invention to provide an apparatus which can display colors that can be clearly discriminated and can perform color painting work accurately and quickly.

(Means for Solving Problems) To achieve this object, the present invention stores image data input means for inputting image data forming a contour line of a picture, and image data input by the image data input means. Image data storage means, a display for displaying the image data stored in the image data storage means, and a halftone percentage input menu display for inputting halftone percentage data associated with colors to be colored on the display. Means, an approximate color display means for displaying on the display a color close to a color formed from halftone percentage data input based on the menu displayed by the halftone percentage input menu display means, and the inputted halftone percentage. Network percent registering means for registering data in the storage means, and this network percent registering means Display color changing means for changing only the color displayed on the display by the approximate color display means without changing the registered halftone percentage, and a registration table menu display for displaying the data registered by the halftone percentage registering means on the display. An image stored in the image data storage unit and a color palette display unit for displaying a color palette color-coded by the color displayed by the approximate color display unit or the display color changing unit. Input screen display means having image extraction means for extracting image data to be color-painted on the display from data, and the input screen display means indicating an area to be color-painted on the image displayed on the display. The area designating means and the area designated by the area designating means are Color-separating means for sequentially performing color painting with the colors displayed in the color, color-separation data storage means for storing color-separation data created by this color-separation means, and color-separation data stored in this color-separation data storage means There is provided a solid network film producing apparatus comprising: color separation data output means for outputting a color separation data output means; and an original plate production means for producing a color separation plate for printing plate making based on the data output by the color separation data output means.

(Operation) In the present invention, the image data forming the outline of the pattern is input from the image data input means and temporarily stored in the image data storage means, and the color table creation means
When halftone dot percentage data associated with a color to be colored on the display is input based on the menu displayed by the halftone percentage input menu display device, the approximate color display device is formed from the input halftone dot data. A color similar to the color is displayed on the display, and the input dot percentage data is registered in the storage unit by the dot percentage registering unit, and the color displayed by the approximate color display unit on the display is displayed by the display color changing unit. The data registered by the percentage registering means is appropriately changed without changing, and finally the data registered by the network percent registering means is displayed on the display by the registration table menu display means. Then, on the screen displayed on the display by the input screen display means, the color palette displayed by the color palette display means is displayed by the color displayed by the approximate color display means or the display color changing means, and the image extracting means displays the color palette. Extracting image data to be color-painted on the display from the image data stored in the image data storage means,
When an area to be colored is designated by the area designating means for the image extracted by the image extracting means and displayed on the display, the color separation means for the designated area causes the color displayed on the color palette to be displayed. Color-separating data is created by sequentially applying color separation data with, and the color-separating data thus created is temporarily stored in the color-separating data storage means and then output from the color-separating color data output means. Based on the data output by the unit, the original plate forming unit creates a color separation plate for printing plate making.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of an apparatus showing an embodiment of the present invention. In the figure, reference numeral 1 is a layout scanner, which comprises an input drum 2, an output drum 3, an interface 4, an interface 5, a layout computer 6 and a magnetic disk 7. The master copy F on the input drum 2
Is set, the line image drawn on the block copy document F is read by a scanning head (not shown), taken into the layout computer 6 via the interface 4, and stored in the magnetic disk 7. ing. here,
The various image data stored in the magnetic disk 7 are edited by the layout computer and output via the interface 5 onto the exposure film set on the output drum, and the Y, M, C and K color separation plates P However, since the editing of various image data is not related to the present invention, detailed description thereof will be omitted. A floppy disk 8 is adapted to write the image data of the block copy document F read by the layout scanner to the floppy disk 9. Also, the layout scanner 1
Is written to floppy 9 and floppy disk 8
It is also an original plate creating means for creating a color separation plate for printing plate making based on the color-separation data read in.

Reference numeral 10 denotes a floppy that serves as data input means and color separation data output means of the present invention, and reads out image data of the original F written in the floppy 9 or a floppy of color separation data stored in a storage device 18 described later. 9 is written.

Reference numeral 11 denotes a computer, which is an input screen display means 1 of the present invention.
2. Having a color table creation means 13 and a color separation means 14, it controls the entire apparatus as a whole. Reference numeral 17 is a display of the present invention, and various images are displayed by the input screen display means 12. Reference numeral 18 denotes a storage device serving as an image data storage means and a color separation data storage means of the present invention, and an image data storage area for storing image data input from the floppy disk 10 to the computer 11 and a color separation means 14
A color separation data storage area for storing the color separation data created by is set.

The input screen display means 12 appropriately thins out the image data stored in the storage device 18 to display the entire design of the block copy document F on the display 17, and the image data stored in the storage device 18. Image extracting means 12b for extracting a part of this image data so as to be displayed on the display 17 without thinning out, and a second screen display for displaying each image data extracted by the image extracting means 12b on the display 17 without thinning out. It has a means 12c and a color palette display means 12d for displaying a color menu for performing color painting on the image displayed on the display 17. The image extracting means 12b
Fixed image extraction means for dividing the image data stored in the storage device 18 into predetermined areas and extracting the image data in the divided areas, and the display 1 by the first screen display means 12a.
It has a free image extracting means for extracting an image in an area arbitrarily selected in a predetermined pattern from the image displayed on 7.

The color table creating means 13 creates a color table in which each of the colors to be colored on the image displayed on the display 17 is associated with the dot% data of yellow, magenta, cyan, and black. A screen% input menu display means 13a for inputting data, a screen% registration means 13e for registering the input screen% data in the storage device 18, and a data registered by the screen percentage registration means 13e are displayed on the display 17. Registration table many display means 13b, approximate color display means 13c for displaying on the display 17 a color approximate to the color formed from the dot% data input based on the dot% input menu display means 13a, and an approximate color display The means 13c has display color changing means 13d for changing the color displayed on the display 17. The color displayed on the display 17 by the registration table menu display means 13b is the color displayed by the approximate color display means 13c or the display color changing means 13d by the color palette display means 12d.
Will be the changed color.

Reference numeral 15 is a pointing device which serves as an area indicating means of the present invention, and indicates an area to be colored on the image displayed on the display 17, or a desired color from a color menu displayed by the color palette display means 12d. Select colors etc.

The color-separating means 14 is for sequentially coloring the area designated by the pointing device 15 with the color displayed by the color palette display means 12d, and for the image displayed on the display 17 by the second screen display means 12c. , An automatic color painting means 14a for automatically painting the color of the area including the border portion of the prepainted extracted image with the same color as the border portion, and converting the already displayed color into the designated color A drawing pattern for drawing a desired line with a designated color on the image displayed on the display 17 by the input image display unit 12 and the original color conversion unit 14b that performs color painting is displayed on the display 17. Drawing pattern display means 14d and a bank creating means 14 for drawing a color boundary line with a pattern selected from the drawing patterns displayed by the drawing pattern display means 14d
e, an image correction unit 14f that corrects image contour lines, unnecessary lines, dust, etc. by the pattern selected from the drawing patterns displayed by the drawing pattern display unit 14d, and the input screen display unit 12 displays it on the display 17 An image enlarging means 14g for enlarging an image of a portion where the color boundary line is drawn by the bank creating means 14e or a portion which is modified by the image modifying means 14f, and an automatic color painting means 14a or an original color converting means. It has a color separation data registration means 14c for registering the color separation data colored by 14b or the like in the storage device 18.

Reference numeral 16 is a keyboard, which gives an operation start signal to the computer 11. Further, in the present embodiment, the data transfer between the layout scanner 1 and the computer 11 is performed by the floppy 9, but it may be performed online or by a communication line.

Next, the control operation of the computer 11 shown in FIG. 1 will be described in detail.

In this case, in the layout scanner 1, the block copy document F
It is assumed that the image data of is already written in the floppy 9. That is, the image data of the line image from the block copy document F set on the input drum 2 is fetched by the layout computer 6 via the interface 4 and stored in the magnetic disk 7. From the stored image data, the desired data is obtained. Data is written in the floppy disk 9 by the floppy disk 8.

The image data written in the floppy 9 is
The layout scanner 1 performs binarization processing, dust removal processing, notch removal processing, and compression to run length data. Here, the dust removal process is a process for automatically removing pixels of several pixels or less as dust, the notch removal process is a process for removing irregularities of the contour line, and the run length data is binarized as described above. One line of the image data is replaced with address data of a point where white changes to black.

FIG. 2 is a flow chart showing the outline of the control operation of the computer 11, FIG. 3 (a) is a schematic diagram showing the image data of the block copy document F written in the floppy 9, and FIG. 3 (b) is the same. FIG. 4A is a schematic diagram showing a state in which the image data shown in FIG.
(B), (c) is a schematic diagram showing the state of the screen displayed on the display 17 by the first screen display means 12a.
The outline of the control operation of the computer 11 will be described below with reference to the drawings.

First, the image data of the block copy document F written in the floppy disk 9 is read from the floppy disk 10 (S1), and the read image data is stored in the image data storage area of the storage device 18 (S2). In this embodiment, as shown in FIG. 3A, the image data B consisting of 1800 × 1300 pixels is stored in the storage device 18. Next, the pointing device 15 or the keyboard 16 is used to determine whether the image to be color-painted is before color separation, or during color separation or after color separation is completed (hereinafter referred to as "after color separation"). The operation waits until it is selected (S3), and when selected, the first screen display means 12a displays on the display 17 the first screen including the image to be colored and various menus (S4). The first screen 20 has an image 21, a color palette menu 22, a work menu 23, and a control menu 24 as shown in FIG.
And a sub-menu display section 25, and step S3
When the image before color separation is selected by, the binary image before color separation stored in the image data storage area of the storage device 18 is displayed on the screen 20.
When color separation is selected, the color image after color separation stored in the color separation data storage area of the storage device 18 is displayed on the screen 20. Image 21 is 1800 shown in Figure 3 (a).
Image B consisting of × 1300 pixels is displayed
It is thinned appropriately so that it can be displayed on 17, 500 × 5
It is formed of pixels of 00 or less. Color palette menu 22
Is a color menu for performing color painting (described later) on the display 17 for the image data B shown in FIG. 3 (a), and is specified by numbers 1 to 16 as shown in the figure. It is formed of a color band and is displayed by the color palette display means 12d. The work menu 23 includes a menu 23a (“display”) for extracting a part of the image data stored in the storage device 18 without thinning it out and displaying it on a second screen (described later), and a second screen. A menu 23b (“save”) for registering the displayed color separation data (described later) in the color separation data storage area of the storage device 18, and yellow associated with each color to be applied on the display 17, It is composed of a menu 23c (“color selection”) for displaying an input screen for inputting magenta, cyan and black halftone dot data. The control menu 24 includes a menu 24a (“end”) for ending the color separation processing by the color separation means 14,
It is composed of a menu 24b (“→”) for switching the screen to the second screen (described later). Further, the sub-menu display section 25 displays a sub-menu (described later) when a desired menu is selected from the work menu 23.

On the first screen 20 displayed in this way, the pointing device 15 is operated to perform menu selection (S5). If "Color selection" in menu 23c is selected,
A color table is created by the color table creating means 13 (described later) (S6). When "Display" of the menu 23a is selected, a menu (not shown) for selecting whether to display before or after color separation displayed in the sub-menu display unit 25
Is waited for (S7), and then the display mode is selected (S8). Display mode selection is 4th
The menu 25a (“fixed”) or the menu 25b displayed on the sub-menu display unit 25 as shown in FIG.
This is done by selecting (“free”) with the pointing device 15. If menu 25a is selected,
The dividing line 26 is displayed as shown in FIG. 4 (b) (S
9). The dividing line 26 represents a state in which the image data B is divided into pixel units that can be displayed on the display 17.
In this embodiment, the number of pixels that can be displayed on the display 17 is 500.
Since it is × 500, as shown in FIG.
By 6, the image data B is divided into image data B1 to B9 consisting of 500 × 500 pixels and image data B10 to B12 consisting of 300 × 500 pixels. Next, it waits until a desired divided image is selected from the divided images 1 to B12 (S10). The selection of the divided image is performed by operating the pointing device 15 on the screen 20 to select a desired area from the area surrounded by the dividing line 26, and the divided image of the selected area is an image extracting unit. It is extracted by the fixed image extracting means of 12b and displayed on the display 17. Here, step S7
If before color separation is selected at, the fixed image extraction means extracts the divided image of the area selected at step S10 from the binary image before color separation stored in the image data storage area of the storage device 18. When the extracted and post-color-separation is selected, the fixed image extracting means extracts a divided image of the selected area from the color-separated color image stored in the color-separation data storage area of the storage device 18.

In FIG. 4 (b), the shaded area in the menu area represents the selected menu, and the shaded menus in the following figures represent the selected menu.

If the menu 25b is selected in step S8,
The free image extracting means of the image extracting means 12b displays a rectangular extraction frame 27 in the image 21 as shown in FIG. 4 (c) (S11), and the step of the image data stored in the storage device 17 is executed. It waits until a region to be extracted is selected for the image data selected in S7 (S12). Where extraction frame 2
The area 7 can be changed in size with one area divided by the dividing line 26 shown in FIG. 4 (b) as the maximum area, and its position can be moved on the screen 20. . Therefore, the region selection in step S12 is performed by operating the pointing device 15 to instruct the size and position of the extraction frame on the screen 20, whereby the free image extraction means causes the image data in the extraction frame 27 to be displayed. To extract. Here, the object of the image data extracted by the free image extraction means is the binary image before color separation or the color after color separation selected in step S7, as with the image data extracted by the fixed image extraction means. It is an image.

In this way, when a part of the image data stored in the storage device 17 is extracted by the fixed image extraction means or the free image extraction means, the second screen display means 12c displays the extracted image and various menus. Dual screen display
It is displayed on 17 (S13), and color separation processing (described later) is performed by the color separation means 14 (S14). In this color separation processing, a general color separation processing is performed on the divided image by selecting menu 25a (display mode "fixed") in step S8, and color separation processing is performed only on a specific area. If you want, in step S8 menu 25b (display mode "free")
By appropriately selecting the display mode, such as selecting and performing color separation processing on a desired area, the color separation processing or the like in step S14 can be efficiently performed.

When "Save" in menu 23b is selected in step S5,
Wait for the storage area to be selected (S15). In selecting the storage area, if the menu 25a (display mode "fixed") is selected in step S8, step S1
The area to be saved is selected in the same way as when selecting the divided image of 0, and in step S8 the menu 25b (display mode "free")
If is selected, the area to be saved is selected in the same manner as the area selection in step S12. When the storage area is selected, the color separation data registration means 14c registers the color separation data in the color separation data storage area of the storage device 18 (S16). Therefore, "save" in the menu 23b is normally selected after the color separation processing in step S14 is performed. Next, it is determined whether or not to end (S17). If not to end, the process returns to step S4, the first screen 20 shown in FIG. 4 (a) is displayed, and the processing from step S5 onward is performed.

The display of the first screen in step S4, the display of the second screen in step S13, and the registration of the color separation data in step S16 are performed on the image data stored in the storage device 18 connected to the computer 11. However, an internal memory for temporarily storing image data is provided in the computer 11, first the target image data is stored from the storage device 18 in this internal memory, and the image data stored in this internal memory is stored. On the other hand, the display of the first screen and the second screen, registration of color-separation data, and the like may be performed, and the image data in the internal memory after the processing may be stored in the storage device 18 again.
By providing such an internal memory, the processing speed for displaying an image on the display or registering color-separation data can be significantly increased.

FIG. 5 is a flow chart for explaining the control operation of the color table creating means 13, FIGS. 6 (a) and 6 (b),
(C) is a schematic diagram showing the states of various screens displayed on the display 17 in this control operation, and the color table creation in step S6 will be described in detail based on the drawings.

First, when "color selection" of the menu 24c is selected in step S5 of FIG. 2, the registration table menu shown in FIG. 6 (a)
31 and the submenu 32 are displayed on the display 17 (S21). As shown in the figure, the registration table menu 31 includes a color number section 31a, a color display section 31b, and Y, M, C, and K dot sections 31.
The content of the color table, which is composed of c and the specific No. unit 31d, is registered in the storage device 18 is shown. The submenu 32 is "Net%" in menu 32a and "Specific N" in menu 32b.
o. "and" color change "of the menu 32c, and is displayed on the sub-menu display section 25 shown in FIG. Next, operate the pointing device 15 to operate the sub menu.
32 selections are made (S5).

First, when "net%" of the menu 32a is selected, the net% input menu display means 13a displays the net% input menu 33 as shown in FIG. 6 (a) on the display 17 (S23). As shown in the figure, the halftone dot input menu 33 is provided with a bar graph display area 33a for visually displaying an input value and a numerical value display area 33b for directly displaying the numerical value.

In this state, wait until the desired number is selected from the color numbers 31a with the pointing device 15 (S24),
When selected, the line of the selected color number in the registration table menu 31 is reversed in black and white, and the input of the halftone dot% corresponding to the selected color number is waited (S25). The input of the halftone dot% is performed by operating the pointing device 15 for each of Y, M, C and K to select a desired position in the stick cluff display area 33a of the halftone dot% input menu 33,
The input value is displayed in the bar graph display area 33a and the numerical value display area 33b. When the dot% is input by operating the pointing device 15 in this way, colors similar to the colors formed by the dot% of Y, M, C and K input by the approximate color display means 13c are shown in the figure. Display on the confirmation menu 34 (S26). Next, by selecting the color number 31a or the color display portion 31b of the color number line in the registration table menu 31 selected in step S24, that is, the black and white inverted line with the pointing device 15, the step S2
The dot% data in which the dot% input in step S25 is associated with the color number selected in 4 is registered in the storage device 18 (S27). At the same time, the color displayed on the color confirmation menu 34 is displayed on the color display section 31b. The figure shows a state in which halftone dot data of color number "7" is registered. After this, it is determined whether or not to continue the above processing for other color numbers (S28), and if "Yes", the process returns to step S24 and the subsequent processing is performed.

Next, when the "specific number" of the menu 32b is selected in step S22, the specific number input menu 35 as shown in FIG. 6 (b) is displayed on the display 17 (S29).
As shown in the figure, the specific number input menu 33 is provided with a ten-key part 35a for inputting a number and a specific number display part 35b for displaying the input number.

In this state, wait for the desired number from the color numbers 31a to be selected by the pointing device 15 (S30),
When selected, the line of the selected color number in the registration table menu 31 is reversed in black and white, and the input of a specific number corresponding to the selected color number is waited for (S31).
This specific number is input by operating the pointing device 15 and selecting a desired number from the ten-key part 35a, and the input number is displayed on the specific number display part 35b. In this way, the pointing device 15 is operated and the specific number is input.
When "t" is selected, the color confirmation menu 34 displays a color similar to the color formed by the net% of Y, M, C and K corresponding to the number input by the approximate color display means 13c (S32). Here, Y, M, C, and K net% corresponding to the specific number are stored in the storage device 18 in advance. Next, the network% data is registered in the same manner as in step S27 (S33), but the entered number is displayed as the specific No. section 31d, and the network% corresponding to this number is displayed in the network% section 31c. It The figure shows a state in which halftone dot data corresponding to the specific number of color number "4" is registered. After this, it is determined whether or not to continue the above processing for other color numbers (S34), and "Yes".
In the case of, the process returns to step S30 and the subsequent processes are performed.

Furthermore, when "color change" of the menu 32c is selected in step S22, a color change input menu 36 as shown in FIG. 6 (c) is displayed on the display 17 (S35). As shown in the figure, the color change input menu 36 includes a color component increase / decrease menu 36 for changing the color displayed on the display 17.
a, 36b, 36c and 36d are provided for each of Y, M, C and K.

In this state, wait for the desired number from the color numbers 31a to be selected by the pointing device 15 (S36),
When selected, the row of the selected color number in the registration table menu 31 is reversed in black and white, and the display color of the selected color number on the display is changed (S37). This display color change is performed by operating the pointing device 15 and appropriately selecting the color component increase / decrease menus 36a, 36b, 36c, 36d, and the changed color is displayed on the color confirmation menu 34 and the color display section 31b. To be done. In this case, the color adjustment is Y, M,
It is performed by increasing / decreasing the component for each of C and K. The menu 35a or 35d is used for a large increase / decrease, and the menu 35b or 35c is used for a small increase / decrease. This kind of display color change can be done in the registration table menu.
This is performed when the colors displayed in the color display section 31b of 31 are approximate and cannot be visually discriminated and it is desired to prevent the color selection process from being erroneously selected later. Only the color displayed in step S27, and the halftone dot data itself registered in step S27 is not changed. In the figure, the display color of color number "4" is changed. After this, it is determined whether or not to continue the above processing for another color number (S38), and if "Yes", the process returns to step S36 and the subsequent processing is performed.

When the halftone dot data registration or display color change is completed as described above, it is determined whether or not the color table creation is completed (S39). If "No", the process returns to step S22 and "Yes". In case of, it ends.

FIG. 7 (a) is a flow chart for explaining the outline of the control operation of the color separation means 14, and FIG. 7 (b) is a schematic diagram showing the state of the screen displayed in step S13 of FIG. ,
The color separation processing in step S14 of FIG. 2 will be described in detail below with reference to the drawings.

First, the second screen display means 12c displays the second screen 40 as shown in FIG. 7 (b) on the display 17 for the extracted image selected in step S10 or step S12 in FIG. The second screen 40 is provided with an extracted image display section 41, a color palette menu 22, a color separation work menu 42, and a color separation control menu 50. A boundary image is displayed on the extracted image display section 41.
41a and the extracted image 41b are displayed. In the extracted image 41b, a part of the image data stored in the storage device 18 by the image extracting means 12b is displayed without being thinned out. The divided image B8 shown in () is displayed without being thinned. The border image 41a is a border portion of the image surrounding the divided image B8. Color separation work menu
42 is a color separation menu 4 for performing color painting on the image 41b.
2a, a bank menu 42b, and a correction menu 42c. The color palette menu 22 includes a color table created by the color table creating means 13 and registered in the storage device 18, that is, a color number of a registration table menu 31 shown in FIG. 31a is displayed in the color of the color display section 31b. The color separation control menu 50 is composed of an enlarged menu 50a and a screen switching menu 50b, and the enlarged menu 50a is the extracted image.
It is a menu for enlarging and displaying a part of 41b,
The screen switching menu 50b is a menu for switching the second screen 40 displayed on the display to the first screen 20 shown in FIG. Reference numeral 25 is a sub-menu display section similar to that shown in FIG. 4, and displays a sub-menu when a desired menu is selected from the color separation work menu 42.

In this state, the color separation work menu 42 is selected (S4
1). When the color separation menu 42a is selected, color separation processing is performed to color the extracted image 41b with the color displayed in the color palette menu 22 (S42), and when the bank menu 42b is selected, the extracted image 41b is selected. The embankment creation process is performed to combine the discontinuity of the contour line of the image with the color displayed in the color palette menu 22 (S43). If the correction menu 42c is selected, the contour line of the extracted image 41b and the unnecessary line A correction process for correcting dust and the like with the color displayed in the color palette menu 22 is performed (S44).

Then, it is judged whether or not the color painting process, the bank creating process, or the modifying process is to be ended (S45). If "No", the process returns to step S41, and if "Yes", the process ends.

FIG. 8 (a) is a flowchart showing in detail the color painting process of step S42 of FIG. 7 (a), and FIGS. 8 (b) and 8 (c) are screens displayed during this color painting process. It is a schematic diagram showing the state of
The process of S42 will be described in detail.

First, the color separation mode is selected (S51). The selection of the color separation mode is performed by selecting the menu "standard" or "automatic" (not shown) displayed on the sub-menu display unit 25 of FIG. 7B with the pointing device 15.

When "standard" is selected, the standard menu 43, the color display menu 44, the original color display menu 45, and the area display menu 60 are displayed on the sub-menu display section 25 as shown in FIG. 8 (b).
Is displayed. Next, the pointing device 15 waits until the color to be painted is selected from the color palette menu 22 (S52), and when selected, the color of the selected color palette is displayed on the color display menu 44 (S53). Then
Wait until the color of the area to be colored in the extracted image 41b, that is, the original color (hereinafter referred to as "original color") is selected by the pointing device 15 from the color palette menu 22 (S54), and if selected, the original color The original color display menu 45
Is displayed on the screen (S55). After this, pointing device 1
Wait for the area to be colored in 5 to be selected (S56),
Coloring is applied to the selected area (S57). This color painting is performed by painting the portion to which the color selected in step S54 in the area selected by the original color conversion means 14b shown in FIG. 1 with the color selected in step S52, that is, selection. This is performed by replacing the original color of the selected area with the color selected in step S52. Here, the area selected in step S56 is an area delimited by the contour line of the extracted image 41b.

If "automatic" is selected in step S51, it is determined whether or not color separation has been completed (S58). If "no", automatic color separation by the automatic color painting means 14a shown in FIG. 1 is performed. I (S5
9), in the case of "Yes", the process returns to step S51. Step S58
In the judgment as to whether or not the color separation has been completed, step S7 in FIG.
Only when the color separation before is selected and the color separation processing is not yet performed on the extracted image displayed on the second screen 40, the determination is “No”. Then, in the automatic color separation in step S59, the extracted image displayed on the second screen is automatically colored by referring to the color of the boundary image. Specifically, the boundary image 41a of the extracted image 14b shown in FIG.
The area adjacent to the boundary image 4
Colored with the same color as 1a.

When the coloring of the predetermined area of the extracted image 41b is completed in this way, it is judged whether or not the coloring is further continued (S60). If "Yes", the process returns to step S51 and "No".
In case of, it ends.

The area display menu 60 shown in FIG. 8 (b) is a menu for performing color painting in the designated area (hereinafter referred to as "area color separation"). For this area color separation, after the standard mode is selected in step S51, the pointing device 15 is operated to select the area display menu 60, and the processing of steps S52 to 55 is performed to set the paint color and the original color. , By specifying the area to be colored. In the area designation by the area color, a frame line 61 is displayed on the extracted image display portion 41 as shown in FIG.
Since the size and position of 61 can be arbitrarily set, the above-mentioned area designation is performed by operating the pointing device 15 to select a desired area. In the area color separation, the original color conversion means 14
By b, all the original colors inside the frame 61 are displayed in the color display menu 44
It is replaced with the color displayed in.

In this way, since the above-mentioned color separation is performed collectively in the specified area, unnecessary areas such as dust and dirt are removed, and there are multiple areas surrounded by the contour line that apply the same color. In some cases, if the above-mentioned color separation is applied, the color separation processing can be performed quickly.

FIG. 9 (a) is a flow chart showing in detail the bank creating process of step S43 of FIG. 7 (a), and FIGS. 9 (b) and (c) are screens displayed during this bank creating process. FIG. 4 is a schematic diagram showing the above state, and the processing of step S43 will be described in detail based on the figure below.

First, when the bank menu 42b is selected in step S41 of FIG. 7, as shown in FIG. 9 (b), the sub-menu display section is displayed.
A color display menu 46, an upper color display menu 47, and a drawing pattern menu 48 are displayed at 25. The color display menu 46 is for displaying colors such as newly drawn contour lines, and the upper color display menu 47 is for displaying colors that are not erased by newly drawn contour lines and the like. The drawing pattern menu 48 is for displaying a drawing pattern used for drawing a new contour line or the like on the extracted image displayed on the display 17, and the drawing pattern display means 14d shown in FIG. Displayed by.

In this state, it is determined whether or not the enlargement menu 50a is selected by the pointing device 15, that is, whether or not a part of the extracted image 41b is enlarged (S71). 50a is selected. At this time, as shown in FIG. 9 (c), the extraction image display section 41 has a cursor 51 for selecting an area to be enlarged.
Is displayed, and the drawing pattern menu 48 displayed on the submenu display section 25 is switched to the enlarging drawing pattern menu 49. Next, the cursor 51 waits until the enlarged area is selected (S72), and when the area is selected, the image enlarging means 14g shown in FIG. 1 enlarges the image in the cursor 51, and the enlarged image is the ninth area. As shown in FIG. 7C, it is displayed as an enlarged screen 52 in the divided image display section 41 (S7
3). If it is not enlarged in step S71, step S7
Processes 2 and 73 are not performed.

Next, the pointing device 15 waits until the drawing pattern 48 or 49 is selected (S74), and if selected, the color to compensate for the discontinuity of the outline forming the extracted image 41b, that is, the embankment is the pointing device.
It waits for selection from the color palette menu 22 at 15 (S75), and when selected, displays that color as the bank color in the color display menu 46 (S76). Next, in order to not erase the original contour line when performing the embankment, wait for the protect color to leave the color of the embossed contour line selected from the color palette menu 22 with the pointing device 15. (S77), and the color is displayed in the upper color display menu 47 as a protect color (S78).

Thereafter, the position of the embankment to be selected is waited for with the pointing device 15 (S79), and when the position is selected, the color displayed in the color display menu 46 is selected according to the pattern selected in step S74. A new contour line is drawn only in the part that is interrupted with respect to the position (S80).
The drawing of the contour line is performed on the image in the enlarged screen 52 when it is selected to enlarge a part of the extracted image 41b in step S71, and a portion of the extracted image 41b is enlarged in step S71. If no is selected, it is directly performed on the extracted image 41b. Then, it is determined whether or not to continue (S8
1) If "Yes", the process returns to step S71, and if "No", the bank creating process is terminated.

In this embodiment, in order to not erase the original contour line when performing the embankment, the color that is not erased is designated as the protect color and is displayed in the upper color display menu 47. Instead, specify the color of the part to be embanked as the original color as in the color painting process of step S42 in FIG. 7, and draw the specified original color part with the bank color selected in step S75. You may

FIG. 10 (a) is a flowchart showing in detail the correction processing of step S44 of FIG. 7 (a), and FIG. 10 (b) is a schematic diagram showing the state of the screen displayed during this correction processing. It is a figure, and the process of step S44 will be described in detail based on the figure below.

First, when the correction menu 42c is selected in step S41 of FIG. 7, a submenu as shown in FIG. 10B is displayed on the submenu display section 25 of the second screen 40. It is the same as the menu shown in FIG. 9B except for the sub-menu upper color display menu 47.

In this state, it is determined whether to enlarge a part of the extracted image 41b in the same manner as in the bank creating process shown in FIG. 9A (S91), and when enlarging, the pointing device 15 is used to enlarge the menu 50a. Is selected. At this time, the cursor 51 is displayed as in FIG. 9C, and the drawing pattern menu displayed on the sub-menu display unit 25 is displayed.
48 is switched to the enlargement drawing pattern menu 49. Next, the cursor 51 waits until the enlarged area is selected (S9
2) When the area is selected, the image enlarging means 14g shown in FIG.
Magnifies the image in the cursor 51, and the magnified image is the 9th
An enlarged screen 52 is displayed in the extracted image display unit 41 as shown in FIG.
Is displayed as (S93). If the enlargement is not performed in step S91, the processes in steps S92 and S93 are not performed.

Next, the pointing device 15 waits until the drawing pattern 48 or 49 is selected (S94), and when the drawing pattern 48a or 49 is selected, a color for correcting the contour line forming the extracted image 41a, unnecessary lines, dust, etc. is set by the pointing device 15. It waits for selection from the color palette menu 22 (S95), and when selected, the color is displayed in the color display menu 46 as a correction color (S96). After that, the apparatus waits until the position to be modified by the pointing device 15 is selected (S97), and when the position is selected, it is selected in the color displayed in the color display menu 46 by the pattern selected in step S94. A new contour line is drawn for the position, and unnecessary lines and dust are deleted (S98). In drawing this outline,
Unlike the drawing in step S80 in FIG. 9A, the original contour line is erased. Next, it is determined whether or not to continue (S99), and if “Yes”, the process returns to step S91,
In the case of "No", the correction process is terminated.

The color-separation data stored in the color-separation data storage area of the storage device 18 after performing various processes as described above is written to the floppy 9 via the floppy disk 10. The color-separation data written in the floppy 9 is composed of the input contour line data of the picture and halftone percentage data of each area, and is given to the layout scanner 1 through the floppy disk 8 and through the layout computer 6. It is stored in the magnetic disk 7. The color separation data stored in the magnetic disk 7 is layout-processed by the layout computer 6 together with various image data, and the layout-processed color separation data is transferred onto the exposure film set on the output drum 3 via the interface 5. Is output to
A color separation version P of Y, M, C and K is created.

(Effects of the Invention) As described above, in the present invention, the image data for forming the outline of the picture is input from the image data input means and temporarily stored in the image data storage means, and the halftone dot input is made by the color table creating means. Based on the menu displayed by the menu display means, when halftone dot percentage data associated with the color to be colored on the display is input, the approximate color display means approximates the color formed from the input halftone dot percentage data. The displayed halftone percentage data is registered in the storage means by the halftone percentage registering means, and the color displayed by the approximate color display means on the display is the halftone percent registering means. It is changed appropriately without changing the net percentage registered in, and finally the net percentage is changed. Since the data registered by the percent registration means is displayed on the display by the registration table menu display means, a color that can be clearly discriminated visually even if the halftone dot difference registered by the halftone dot registration means is small is displayed on the display. . Then, on the screen displayed on the display by the input screen display means, the color palette displayed by the color palette display means is displayed by the color displayed by the approximate color display means or the display color changing means, and the image extracting means displays the color palette. Image data to be color-painted on the display is extracted from the image data stored in the image-data storage means, and color-painting is performed on the image extracted by the image extraction means and displayed on the display by the area designating means. When the area to be performed is designated, the color-separating means sequentially paints the designated area with the colors displayed on the color palette to create color-separation data. And color painting work can be done quickly, and the color separation data created in this way is once the color separation data. After the color separation data output means is stored in the storage means, the original plate creating means creates a color separation plate for printing plate making based on the data output by the color separation data output means. This has the effect of being able to accurately and efficiently perform color painting and production of a solid mesh film.

[Brief description of drawings]

FIG. 1 is a block diagram of an apparatus showing an embodiment of the present invention, FIG. 2 is a flow chart showing an outline of control operation of a computer 11, and FIG. 3 (a) is a block original F written on a floppy 9. Fig. 3 (b), which is a schematic diagram showing image data of
Is a schematic diagram showing a state in which the image data shown in FIG. 4A is divided, and FIGS. 4A, 4B, and 4C are screens displayed on the display 17 by the first screen display means 12a. FIG. 5 is a schematic diagram showing the state of FIG.
6A, 6B and 6C are flow charts for explaining the control operation of FIG. 6, which are schematic views showing the states of various screens displayed on the display 17 in this control operation.
FIG. 7 (a) is a flow chart for explaining the outline of the control operation of the color separation means 14, FIG. 7 (b) is a schematic diagram showing the state of the screen displayed in step S13 of FIG. 2, 8 (a) and 8 (b) are flowcharts showing in detail the color painting process of step S42 in FIG. 7 (a), and FIG. 8 (c) shows the state of the screen displayed during this color painting process. The schematic diagram shown in FIG. 9A is a flow chart showing in detail the bank creating process of step S43 of FIG. 7A, and FIGS. 9B and 9C are displayed during this bank creating process. Fig. 10 (a) is a schematic diagram showing the state of the displayed screen, Fig. 10 (a) is a flow chart showing the correction process in step S44 of Fig. 7 (a) in detail, and Fig. 10 (b) is displayed during this correction process. FIG. 11 is a schematic diagram showing a state of a screen to be displayed, and FIG. 11 is a schematic diagram showing an example of a printed matter of a plain net portion. 1 ... Layout scanner 2 ... Input drum, 3 ... Output drum 4, 5 ... Interface 6 ... Layout computer 7 ... Magnetic disk 8, 10 ... Floppy disk 9 ... Floppy, 11 ... Computer 12 ...... Input screen display means 13 …… Color table creation means 14 …… Color separation means 15 …… Pointing device 16 …… Keyboard, 17 …… Display 18 …… Storage device F …… Work copy original, P …… Color separation Edition

 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-59-11062 (JP, A) JP-A-60-222857 (JP, A) JP-A-61-295578 (JP, A) JP-A-61- 91660 (JP, A) JP 62-44880 (JP, A) JP 61-232460 (JP, A) JP 62-40871 (JP, A) JP 62-39969 (JP, A) JP-A 61-150573 (JP, A) JP-A 61-124945 (JP, A) JP-A 60-260954 (JP, A) JP-A 62-44795 (JP, A)

Claims (1)

[Claims] 1. An image data input means for inputting image data for forming a contour line of a picture, an image data storage means for storing image data input by the image data input means, and an image data storage means for storing the image data. A display for displaying the displayed image data, a halftone percentage input menu display means for inputting halftone percentage data corresponding to the color to be colored on this display, and a menu displayed by this halftone percentage input menu display means An approximate color display means for displaying on the display a color similar to the color formed from the halftone dot data input based on the above, and a halftone dot registration means for registering the input halftone dot data in the storage means, Before changing without changing the net percentage registered by this net percentage registration means A color table creating means having a display color changing means for changing only the color displayed on the display by the approximate color displaying means, and a registration table menu displaying means for displaying the data registered by the halftone percentage registering means on the display; Color palette display means for displaying a color palette color-coded by the color displayed by the approximate color display means or the display color changing means, and color painting on the display from the image data stored in the image data storage means. Input screen display means having image extraction means for extracting image data to be performed, area designating means for designating an area in which the input screen display means colors the image displayed on the display, and the area designating means The area designated by is sequentially painted with the color displayed on the color palette. Color separation means for creating data, color separation data storage means for storing the color separation data created by this color separation means, and color separation data output means for outputting the color separation data stored in this color separation data storage means And a plate making unit for making a color separation plate for printing plate making based on the data output by the color separation data output unit.