JPH0439111B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a trimming method and a trimming device used in a so-called total scanner system that uses a computer to perform layout work necessary for the plate-making process, and particularly relates to a trimming method and a trimming device used in a so-called total scanner system that uses a computer to perform layout work necessary for the plate-making process. The present invention relates to a trimming method and a trimming device that display an image image and a mask image on a screen and align the image and mask with high precision.

(Prior art and its problems) FIG. 21 is a block diagram showing an example of a conventional total scanner system. Catalogs, calendars,
To create the original film for printed materials such as leaflet advertisements, it is necessary to sketch the final printing plan, for example,
A layout designation sheet 51 as shown in the figure and color originals (not shown) to be fitted into the spaces 52 and 53 allocated to this layout designation sheet 51 are prepared respectively, and the colors are colored according to the work procedure described below. Create a decomposition film.

First, the input scanner 54 captures image data from a plurality of color originals and stores them in a storage device 55 such as a magnetic disk. on the other hand,
Using a graphic drawing machine etc. 56, plate making size data and mask data are input based on the instructions on the layout designation sheet 51 (FIG. 22), and the data is input online or offline to a storage device 57 such as a magnetic disk or floppy disk. to be memorized. Then, the editing device 58
The corresponding image data and mask data are sequentially retrieved from among the data stored in the storage devices 55 and 57, and the image and mask are aligned while displaying the image in a spatially compressed state on the color monitor 59. (trimming) (details will be described later). This trimming work is performed on all images and masks, and based on this, layout processing is performed on the image data itself in the storage device 55 to have the actual finished copy size (the processing results are stored in another storage device). (You may memorize it)
To obtain image information that has been layout-processed as desired. Finally, using the above image information, the output scanner 60 creates four color separation films (yellow, red, indigo, black) with page make-up.

By the way, in the above-mentioned total scanner system, trimming work is generally performed as follows. That is, first, the operator reads the corresponding image data and mask data from the storage devices 55 and 57, and displays the image image 62 and mask image 63 within the effective display area 61 of the monitor 59 as shown in FIG. .
At this time, the image image 62 and the mask image 6
3 compresses the image data so that the entire image can be displayed on the monitor 59, and reads and displays the image data. Next, the operator issues a mask image movement command from the editing device 58 to move the mask image 63 displayed on the monitor 59 horizontally and vertically relative to the image image 62 onto the layout designation sheet 51 (FIG. 22). Trimming alignment (hereinafter simply referred to as alignment) is performed as instructed, and image information and mask information are combined at the position where alignment is completed.

However, with the above trimming method,
An image 62 and a mask image 6 are displayed on the monitor 59.
3 is compressed and displayed (i.e.,
For example, as shown in the circle 64 in FIG. If there is at least one location that requires alignment, it is not possible to judge whether the positioning at that location is good or bad on the monitor screen, and there is a risk that an image will be output without proper positioning, resulting in a platemaking error.

In order to prevent such platemaking errors, the image image 65 and the mask image 66 can be brought up and aligned on the monitor 59 at full resolution (no compression); Since only a portion of the image image 65 and mask image 66 are displayed on the screen, if there are multiple locations that require precise alignment as shown by the circles in FIG. The trimming process requires a long time because it has to be called up on the monitor 59 and aligned one after another, and each time it is necessary to reconfirm whether or not the alignment of the already aligned parts is good or not. A problem arises in that the operating efficiency of the system decreases.

(Purpose of the Invention) This invention was made to solve the above problem, and it is possible to quickly and precisely align a mask and an image even when there are multiple locations that require precise alignment. An object of the present invention is to provide a trimming method and a trimming device.

(Structure of the Invention) A trimming method according to the first invention stores mask image data and image image data in a storage means, compresses the mask image data and image image data at a required compression rate, and generates a compressed image image. A trimming method in which compressed mask images are superimposed and displayed on a monitor, the compressed mask image is moved relative to the compressed image image, and the relative position of the image with respect to the mask is calculated from the moved position and stored in a storage means. , further includes the first to third steps described below.

The first step is to generate a plurality of compression windows by superimposing them on the compressed image and compression mask image displayed on the monitor, and to move each compression window to a required position to specify a reading area. . The second step is to read out the image data and mask image data of the specified reading area from the storage means in an uncompressed manner, and divide the actual image image and the actual mask image into a plurality of uncompressed windows while maintaining their relative positions. This is the process of converting and displaying it on a monitor. The third step is to move the actual mask image relative to the windowed real image, calculate the relative position of the image with respect to the mask from the moved position, and update and store it in the storage means.

A trimming device according to a second invention is a device for carrying out the above-mentioned trimming method, and
As shown in the claim correspondence chart in the figure, a first storage means 1 for storing mask image data and image image data, second and third storage means 2 and 3, and a mask image from the first storage means 1 are provided. reading means 4 for reading data and image data into the second and third storage means 2 and 3 uncompressed or compressed in whole; Display means 5 for displaying an image image and a mask image in a superimposed manner on a monitor based on the stored image data, and data for relatively moving the image data stored in the second and third storage means 2 and 3. It is provided with a moving means 6, and an arithmetic/storage means 7 for calculating the relative position of the image with respect to the mask from the moving position of the image data and storing it in the first storage means 1. reading area specifying means 8 for specifying a plurality of specific areas of the mask image and the image image that are displayed superimposed on each other; and fourth and fifth memories for partitioning and storing the plurality of specific areas for each window. means 9 and 10.
The reading means 4 then stores the mask image data and the image data specified by the specific area in the partitioned windows of the fourth and fifth storage means 9 and 10 into the first storage means 1.
The display means 5 superimposes the window-divided real image and the real mask image on the monitor based on the image data stored in the fourth and fifth storage means 9 and 10. The image data stored in the fourth and fifth storage means 9 and 10 are relatively moved by the data moving means 6, and the calculation and
The storage means 7 is configured to calculate the relative position of the image with respect to the mask from the movement position of the image data in the fourth and fifth storage means 9 and 10, and update and store it in the first storage means 1. There is.

(Example) The trimming method and trimming device of the present invention will be explained using the following example.

A. Device Configuration FIG. 2 is a block diagram showing an overview of a total scanner system incorporating a trimming device.

As shown in the figure, an input scanner 15 for inputting image information, a graphic drawing machine 16 connected online or offline for inputting plate size information and mask information, and an input scanner 15 for inputting image information, plate size information, and mask information. Image disk device (first storage means) 17 in which mask information etc. are stored
, a system disk device 18 for storing system programs, etc., a digitizer 19 and a function keyboard 20 for inputting various command signals, plate making size and mask information via a menu sheet, etc., and a function keyboard 20 for outputting images. output scanners 21 are each connected to a central processing unit (CPU) 23 via a bus 22. in this case,
The image information includes data such as image offset, which is relative position data of the image with respect to the mask, image file size, and image image data. The mask information also includes data such as a mask offset, which is mask position data, and a mask file size (mask image data).

The RAM 24 stores a normal trimming program and a high-precision trimming program including window information. The image data compression circuit 25 is
According to the program stored in RAM24,
The image data and mask image data called from the image disk 17 are compressed at a required compression rate, and the compressed data is stored in the image memories 27 and 28 and the mask memories 29 and 30 via the memory access controller 26. . The overlay controller 31 has image memories 27, 2
8 and mask memories 29 and 30 are selectively switched and inputted to a monitor 33 via a D/A converter 32 for image display.

Here, to briefly describe the correspondence with the configuration of the invention, the image disk device 17
The image memory 27 constitutes a second memory means, and the mask memory 29 constitutes a second memory means.
The image memory 28 constitutes a fourth memory means, the mask memory 30 constitutes a fifth memory means, and the overlay controller 31, DA converter 32, and monitor 33 constitute a third memory means. A display means is constituted, an image data compression circuit 25 and a memory access controller 26 constitute a reading means, a digitizer 19, a function keyboard 20 and a memory access controller 26 constitute a data movement means, and a central processing unit 23 constitutes a calculation means.・
The memory access controller 26 and the mask memory 30 constitute a reading area specifying means, each of which is operated according to a program stored in the memory 24.

B. Operation of the device Next, the operation of the above device will be explained. 3 to 9 are flowcharts showing the trimming work procedure. Now, the image disk device 17 (second
It is assumed that image information inputted from the input scanner 15 and plate-making size information and mask information inputted online or offline from the graphic drawing machine 16 are stored in FIG.

1 Creation of Overview Screen First, as shown in step S1 of FIG. 3, an image and a mask to be trimmed are specified using the digitizer 19 (FIG. 2), and an overview screen creation command is given (step S2). FIG. 4 is a subroutine flowchart showing the operation when an overview screen creation command is given.

First, in step S3, an image data compression coefficient for performing an overview display is calculated. Normally, when comparing the corresponding image information stored in the image disk device 17 with mask information, (image file size)≧(mask file size). Therefore, the monitor 33
(Fig. 2) The size of the effective display area is
If SIZE _npoi [pixels] (for example, 512 pixels) and the larger of the vertical and horizontal sides of the image file size are SIZE _inage [pixels], the image data compression rate CMPF is: CMPF = SIZE _inage / SIZE Represented by _npoi . However, the decimal point in CMPF is carried to the integer part.

Next, in step S4, the image data of the specified image information stored in the image disk device 17 is compressed by the image data compression coefficient (CMPF) and transferred to the image memory 27. FIG. 10 is a diagram schematically showing the transfer of image data.
Apply compression by CMPF from the first address of the image file 34 stored in 7.
The memory plane 35 is stored starting from the first address.

Next, in step S5, the image data of the designated mask information stored in the image disk device 17 is compressed by the image data compression coefficient (CMPF) and transferred to the mask memory 29. FIG. 11 is a diagram schematically showing the transfer of mask data, in which the first address of the memory plane 37 is compressed by CMPF from the first address of the mask file 36 stored in the image disk device 17. Store from

Next, in step S6, the image memory 27 is used to display an overview on the monitor 33.
and a display offset value in the mask memory 29 (the details of which will be described later) are calculated from the image offset and the image data compression coefficient (CMPF). Here, the image offset is the 12th
As shown in the figure, the image disk device 17 (second
This refers to the distance between the origin 38 ₀ of the image data 38 stored in the figure) and the origin 39 ₀ of the corresponding mask data 39. The display offset refers to the distance between the origins 38 ₀ and 39 ₀ when the image data 38 and mask data 39 are compressed and displayed on the monitor 33. Therefore, if the real image offsets in the x-axis and y-axis directions are I _pffx and I _pffy , then the x-axis and y-axis
Axis display offset IOFF _{npoi x} , IOFF _{npoi y}
IOFF _{npoi x} = I _pffx / CMPF [pixels] IOFF _{npoi y} = I _pffy / CMPF [pixels]

Finally, in step S7, the image data stored in the image memory 27 and mask memory 29 is displayed on the monitor 33 with the display offset calculated by. An example of the overview screen displayed on the monitor 33 at this time is shown in FIG. In the figure, 40 indicates a compressed image;
1 indicates a compressed mask image.

2 Normal Trimming After completing the creation of the overview screen, the process proceeds to step S8 in FIG. 3, where a trimming method is input using the digitizer 19. There are two trimming methods: "Normal trimming" and "High-precision trimming." First, "Normal trimming" is used to roughly align the image and mask.
Specify. When "Normal trimming" is specified,
Proceeding to step S9, well-known operations are performed according to the normal trimming program stored in the RAM 24 of FIG. That is, the operator issues a roaming command on the digitizer 19 and moves the cursor in accordance with the direction and length in which the mask image on the monitor screen is to be moved relative to the image image. FIG. 5 is a flowchart showing the operation when a normal trimming command is given.

In step S10, the digitizer 19 sends a roaming command (i.e., the monitor 33 (first
It is determined whether a command to move the compressed mask image 41 displayed in FIG. 3) has been given.

Step if roaming command is given
Proceeding to S11, the amount of cursor movement of the digitizer 19 is calculated, and the amount of movement is converted into the amount of movement in the coordinate system of the image memory 27 (FIG. 2).

Next, in step S12, the memory contents (compressed mask data) of the mask memory 29 are moved by the calculated amount of movement and displayed on the monitor 33. As a result, the compressed mask image 41 on the monitor 33 moves on the screen by the amount of movement described above.

Next, in step S13, the amount of movement is converted into the amount of movement in the coordinate system on the actual file stored in the image disk device 17, and the amount of movement from the roam start point to the current point in the same coordinate system is calculated. .

Thereafter, the process returns to step S10 again, and while the roaming command is being given, the process continues in step S10 until the positional relationship between the image image and the mask image on the monitor screen matches the trimming specified on the layout designation sheet. →The processing of S11→S12→S13 is repeated.

When roaming is thus completed, the determination in step S10 becomes "NO" and the process proceeds to step S14, where when a trimming termination command is given, a new image offset is calculated in step S15.

Note that step S10 is continued until a new command (roaming command, trimming end command) is given.
-Continue going around S14-S10.

The principle by which the new image offset is calculated will now be explained using FIG. 14. Figure 14a
is a diagram schematically showing the amount of movement of the cursor on the digitizer 19, where the point P ₁ (P _1x , P _1y ) in the diagram indicates the roam start point, and the point P ₂ (P _2x , P _2y ) Indicates roam end point. On the other hand, FIG. 14b is a diagram schematically showing the state of movement of the mask on the actual file. In the figure, _M0 has an image offset value of "0".
, M ₁ indicates the actual mask position corresponding to the roam starting point P ₁ , and M ₂ indicates the actual mask position corresponding to the roam ending point P ₂ . The digitizer 19 cursor is now at the roam starting point.
Considering the case where the mask moves from P ₁ to the roam end point P ₂ , in step S13 of FIG. 5, the amount of mask movement ΔI _pff on the actual file (see FIG. 14 b)
The x and y components ΔI _pffx and ΔI _pffy have been calculated. Here, the x, y components of the offset I _pff (see Figure 14b) of the real mask M ₀ corresponding to the roam starting point P ₁
Since I _pffx and I _pffy have already been given, the x and y components I' _pffx and I' _pffy of the new image offset I _pff ' (see Figure 14b) are: I' _pffx = I _pffx + ΔI _pffx I ′ _pffy = I _pffy + ΔI _pffy .

Once the new image offset I _pff has been calculated in this way, the normal trimming program is terminated and the process proceeds to step S16 in FIG.
The image offset of the corresponding image information stored in 7 is updated to the new image offset.

Note that FIG. 15 shows an overview screen after the compressed mask image 41 displayed on the monitor 33 has been moved. In this way, the image and mask are roughly aligned.

3 High-precision trimming Once the above process is completed, repeat the steps shown in Figure 3.
Returning to S8, the trimming method is input using the digitizer 19. Since we have already completed the rough positioning of the image and mask, here we specify "high precision trimming" to perform precise positioning of the image and mask. If "high precision trimming" is specified, the process advances to step S17, and the sixth
The work is carried out according to the high-precision trimming program shown in the figure. FIG. 6 is a flowchart showing the operation when a high precision trimming command is given.

(1) Window condition input processing First, in step S18, a program for window condition input processing is executed. The details are as shown in FIG.

First, in step S19, the mask memory 3
0 (FIG. 2), the first (first) compression window (rectangular frame) is written, and the compression window image W ₁ is displayed on the screen of the monitor 33, superimposed on the compression mask image and the compression image image. (See Figure 16).

Next, the process proceeds to step S20, where it is determined whether a compression window movement command is issued or not depending on the positional relationship between the compression window and a portion of the image that requires precise positioning. The command to move the compressed window is similar to the roaming described above.
This is given by the movement of the digitizer 19 cursor. When a command to move the compression window is given, step S20 becomes "YES" and the process advances to step S21.

In step S21, the amount of movement of the cursor of the digitizer 19 is calculated based on the same principle as the roaming, and converted to the amount of movement in the coordinate system of the image memory 27 (FIG. 2).

Next, in step S22, the memory contents (compressed window data) of the mask memory 30 are
is moved by the above movement amount and displayed on the monitor 33. As a result, the compressed window image on the monitor 33 moves on the screen by the amount of movement described above.

Thereafter, the process returns to step S20 again, and while the compression window movement command is being given, the processes of steps S20→S21→S22 are repeated.

In this way, as shown in Fig. 16, when the first (first) compression window W ₁ has been moved to the position that requires precise positioning (the position corresponding to the circle mark M in Fig. 15), the compression window movement command is issued. Release. As a result, the process advances from step S20 to step S23, where it is determined whether or not there is a window registration command.

When a window registration command is given in step S23, the process advances to step S24, and the monitor 3
Compression window W ₁ (16th
Figure) The address (W _1Ax , W _1Ay ) of the origin W _1A on the image memory 27 is determined and registered together with the window size in the window address registration table.

Next, proceed to step S25, and the number of registrations is "4".
It is determined whether the target has been reached. first (first)
At the time when the window is registered, the number of registrations is "1", so the determination at step S25 is "NO" and the process returns to step S19.

Returning to step S19, the second compression window W ₂ (FIG. 16) is now displayed on the monitor 33. If a window movement command is given here, steps S20 → S21 →
The closed loop process of S22 is executed, and the compression window _W2 moves on the screen of the monitor 33. Then, when a window registration command is given when the compression window W ₂ has moved to the _second position that requires precise positioning (step _S23 ), the address ( W _2Ax , W _2Ay ) are determined (step S24) and registered in the window address registration table along with the window size.

After this, the number of registrations is determined in step S26, and the process returns to step S19, where the number of registrations is "4".
The above process is repeated until . Thus, the third and fourth compression windows W ₃ , W ₄
to the third and fourth positions that require precise positioning, and each compression window W ₃ , W ₄
The addresses (W _3Ax , W _3Ay ) and (W _4Ax , W 4Ay ₎ of the origins W 3A and W _4A on the image memory ₂₇ are respectively registered in the window address registration table together with the window size.

If the number of compressed windows registered is "3" or less, it is determined in step S41 whether or not there is a window registration process termination command. When there is a command to end the window registration process, step S41 is executed.
The result is YES, and the window condition input process ends.

Incidentally, if no new work command is received, steps S20→S23→S41→S20 are continued.

When the registration of the four compression windows _W1 to _W4 is completed in this way, the window condition input processing program is ended and the process proceeds to step S27 in FIG.

(2) Window division screen creation process In step S27, the path between the mask memory 30 and the monitor 33 is closed, the images of the compressed windows _W1 to _W4 are deleted from the monitor 33, and then,
Proceeding to step S28, a program for window division screen creation processing is executed. The details of the program are shown in FIG. 8, but before explaining the details, the window sections will be explained first.

FIG. 17 shows a window section T drawn on the image memory plane. In this embodiment, the window is divided into four sections W _{1 ′} to W ₄ ′ corresponding to the number of compression windows W ₁ to W ₄ .
The sizes of the partition windows W ₁ ′ to W ₄ ′ are all set to be the same, and a margin portion S is provided between each partition window W ₁ ′ to W ₄ ′. This margin S prevents the masks drawn in the partition windows W ₁ ′ to W ₄ ′ from wrapping around to other partition windows, and also prevents the images (pictures) drawn in each partition window W ₁ ′ to _{W 4} ′. ) are provided to clearly distinguish the edges. The window partition screen creation process performed here involves drawing the window partitions T as described above in the image memory 28 (FIG. 2) and the mask memory 29, respectively, and
The image data and mask data of the area specified by the compression windows _W1 to _W4 are read from the image disk device 17 and written at full resolution into W1 _' to _W4 '.

Therefore, the program for the window section screen creation process shown in FIG. 8 will be explained next.

First, in step S29, the real data stored in the image disk device 17 is searched from the address (W _1Ax , W _1Ay ) corresponding to the first (first) compressed window W ₁ registered in the window address registration table. The reading start address of the image file is calculated.

Next, in step S30, the size of the compression window _W1 is converted to the actual size (the size of the partition window _W1 ' in FIG. 17), and the read size of the image data is calculated.

Next, in step S31, the image data stored in the image disk device 17 is transferred to the image memory 2 at full resolution.
8 to the area corresponding to the partition window W ₁ ′ (see partition window W ₁ ′ in FIG. 18). Next, in step S32, the step
From the reading start address of the actual image file obtained in S29 and the new image offset obtained in step S16 (Figure 3), the image disk device 1
The reading start address of the actual mask file stored in 7 is calculated.

Next, in step S33, the mask data stored in the image disk device 17 is transferred at full resolution to the area corresponding to the section window W ₁ ' of the mask memory 30 (section window W _{1 '} in FIG. 19). 'reference).

Once you have finished transferring the image data and mask data to the partition window W ₁ ′, proceed to step
The process advances to S34, where it is determined whether all windows have been transferred. At this point, only the first window has been transferred, so the step
The judgment in S34 is "NO" and the process returns to step S29.
Return to

Thereafter, until the transfer of the second to fourth (or final number of registrations) windows is completed,
Above steps S29→S30→S31→S32→S33→S34
→The closed loop process of S29 is repeated, and the image data and mask data are written at full resolution in the corresponding areas of each partition window W ₂ ′, W ₃ ′, W ₄ ′ of the image memory 28 and mask memory 30. (Figure 18,
(See Figure 19).

In this way, when the transfer for the fourth (or final number of registrations) window is completed, the process proceeds to step S34.
If the judgment is ``YES'', the process proceeds to step S35, where the overview screen displayed on the monitor 33 is erased and replaced with a window section screen (20th screen) that combines the memory contents shown in FIGS. ) is displayed on the monitor 33. In addition, in FIG. 20, 42 shows a real mask image, and 43 shows a real image image.

This ends the program for window section screen creation processing and proceeds to step S36 (image offset fine adjustment processing) in FIG.

(3) Image offset fine adjustment processing FIG. 9 shows the details of the image offset fine adjustment processing program.

First, in step S37, the actual mask image 42 (FIG. 20) displayed on the monitor 33
It is determined whether a movement command has been given. The actual mask image movement command is a command that instructs the amount and direction of movement of the actual mask image 42, and these commands are continuously given by moving the cursor of the digitizer 19, or by key input operations on the function keyboard 20. is given in steps.

When the actual mask image movement command is given, the process advances to step S38, where the contents of the mask memory 30 (window-divided real mask data) are moved by the commanded movement amount, and the monitor 33 is moved.
will be displayed. As a result, on the monitor 33, each real mask image 4 is
2 will be relatively moved by the commanded movement amount. Thus, the operator can create a compressed window
The alignment status of the image and mask in the areas specified by W ₁ to W ₄ (Figure 16), that is, all the locations that require precise alignment, is monitored on the monitor 3.
The degree of overlap between the actual image 43 and the actual mask image 42 (FIG. 20) displayed in FIG.

When the alignment work is thus completed, the digitizer 19 issues a work end command in step S39, and the process advances to step S40. If no new work order is received, proceed to step S37→
Continue going around S39→S37.

In step S40, the amount of movement on the actual file is calculated according to the amount of movement of the compressed mask image using the same principle as explained using FIG. 14, and a new image offset is calculated based on the amount of movement on this actual file. is calculated.

Once the new image offset has been calculated in this way, the high-precision trimming program shown in FIG. 6 is finished, and the process proceeds to step S16 in FIG. Updated by. This ensures accurate alignment of the image and mask. Thereafter, the process returns to step S8, and when the digitizer 19 issues a command to end the trimming work, all the trimming work is completed.

C. Effects of Embodiment According to this trimming method and trimming device, first, an overview screen is displayed on the monitor 33 by normal trimming to roughly position the mask and image, and then a maximum of four images are displayed on the overview screen by high-precision trimming. The individual compression windows W ₁ to W ₄ are displayed, each compression window W ₁ to _{W 4} is moved to a location that requires precise alignment, and then the area specified by each compression window W ₁ to _{W 4} is moved. The mask data and image data are retrieved from the image disk device 17 without being compressed, divided into windows and displayed on one screen of the monitor 33, and the actual mask image on the window division screen is moved relative to the actual image image. Align the mask and image. In this way, images of masks and images of locations that require precise alignment are displayed on the monitor 33 at multiple locations simultaneously, and without compression as actual data.
Since the mask and image are aligned, the alignment status of the mask and image at each location can be seen at once on the monitor screen with high precision, and there are multiple locations for precise alignment. Trimming work can be done quickly and accurately.

(Effects of the Invention) As described above, the trimming method and trimming device of the present invention have the effect of quickly and accurately performing trimming work when there are multiple locations that require precise alignment. It will be done.

[Brief explanation of drawings]

FIG. 1 is a claim correspondence diagram showing the configuration of a trimming device of the present invention, FIG. 2 is a configuration diagram of a total scanner system that is an embodiment of the present invention, and FIG.
9 to 9 are flowcharts showing the operation of the same embodiment, FIG. 10 is a diagram schematically showing the transfer of image data, FIG. 11 is a diagram schematically showing the transfer of mask data, and FIG. The figure is an explanatory diagram of image offset, Figure 13 is a diagram showing a monitor screen with an overview of the image and mask, and Figure 14 is a diagram showing an overview of the image and mask.
The figure is a diagram explaining the calculation principle of the new image offset, and Figure 15 is a diagram showing the monitor screen displayed as an overview after moving and adjusting the compressed mask image.
Fig. 16 is a diagram showing a monitor screen with a compressed window displayed on the overview screen, Fig. 17 is an explanatory diagram of window partitions, Fig. 18 is a diagram showing the contents of the image memory divided into window partitions, Fig. 19
The figure shows the contents of a window-divided mask memory, Figure 20 shows a monitor screen displaying a window-divided image and mask, and Figure 21 shows an overview of a conventional total scanner system. FIG. 22 is a plan view of the layout designation sheet, and FIGS. 23 and 24 are diagrams showing a monitor screen displayed as an overview according to the conventional method. 1...First storage means, 2...Second storage means, 3...Third storage means, 4...Reading means, 5
...Display means, 6...Data movement means, 7...Calculation/storage means, 8...Reading area specifying means, 9...
Fourth storage means, 10...Fifth storage means.

Claims (1)

[Scope of Claims] 1. Storing mask image data and image image data in a storage means, compressing the mask image data and image image data at a required compression rate, and superimposing the compressed image image and the compressed mask image on a monitor. In the trimming method, the compressed mask image is moved relative to the compressed image image, and the relative position of the image with respect to the mask is calculated from the moved position and stored in a storage means. A step of generating a plurality of compressed windows by superimposing them on a compressed image image and a compressed mask image, moving each compressed window to a required position to specify a reading area, and generating image data and mask image data of the specified reading area. reading out the image from the storage means in an uncompressed manner, partitioning the actual image image and the actual mask image into a plurality of uncompressed windows while maintaining their relative positions, and displaying them on a monitor; A trimming method comprising the steps of relatively moving an actual mask image, calculating the relative position of the image to the mask from the moved position, and updating and storing it in a storage means. 2. A first storage means for storing mask image data and image image data, second and third storage means, and a part of the mask image data and image image data from the first storage means in uncompressed or reading means for compressing the entire image and reading it into the second and third storage means; and displaying the image image and the mask image in a superimposed manner on a monitor based on the image data stored in the second and third storage means. a display means for relatively moving the image data stored in the second and third storage means; and a data moving means for relatively moving the image data stored in the second and third storage means; A trimming device comprising a calculation/storage means for storing in a storage means, further comprising: a reading area specifying means for specifying a plurality of specific areas of the mask image and the image image which are superimposed and displayed on a monitor by the display means; fourth and fifth storage means for partitioning and storing a specific area for each window, wherein the reading means stores the specific area in the partitioned window of the fourth and fifth storage means. The mask image data and the image image data specified by are read from the first storage means in an uncompressed manner, and the display means displays a window on the monitor based on the image data stored in the fourth and fifth storage means. displaying the segmented real image and the real mask image in a superimposed manner;
The image data stored in the storage means is relatively moved, and the image data stored in the fourth and fifth
The relative position of the image with respect to the mask is calculated from the movement position of the image data in the storage means of the first
characterized by causing the storage means to update and store the information,
trimming device.