JPS6240870A - Method and device for processing printing plate making picture data - Google Patents

Abstract

PURPOSE:To reduce ineffective time in the course of original picture inputting work, by displaying the data of a rectangular area with a specific point at the center on a display simultaneously with the fetching of picture data. CONSTITUTION:The picture data of an original 2 fetched by means of an operation drum 1A are outputted to an exposure drum 1b through a controller 3. Therefore, a data tablet 5 is provided and an allocating board is put on a data inputting area. in addition, positional data are inputted by means of a cursor 5A and numerical data are inputted through a menu area 5B. On the other hand, the output 100 of the operation drum 1A of a layout scanner 1 and the control signal 200 of the controller 3 are also given to an auxiliary device 8 and the data 300 of a prescribed part only among the picture data from the operation drum 1A are fetched and given to a display 7.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method and apparatus for processing image data for printing plate making, and in particular, a method for displaying image data to determine the quality of the image data while it is being taken in. Concerning methods and refitting.

C Technical background of the invention] In recent years, printing plate making using a system with an editing function called Layara 1 ~ Rimming, Layala]
It is becoming common to do this. When performing layered work using this system, the image data of the document capture range set on the scanner is stored in the at-a-glance memory and then converted into partial images or thinned out and averaged whole images. The procedure is to cover the display on the display.

However, this method has the following problems.

(1) The operator cannot check the input image until the original input work is completed and both data are displayed on the monitor, which may result in defects such as poor color tone, moiré patterns, mistakes in setting the document capture range, etc. Even if there is, I don't notice it.

(2) If the input image has even one of the defects listed in item (1), you will need to redo the input process from the beginning.
When inputting a large number of original images, a large amount of time is wasted.

(3) Once data is stored in the memory and then read out on the display, it takes time to read out the data from the memory, but if this time can be shortened, it would be a good idea.

[Purpose of the invention]

The present invention has been designed with the above-mentioned points in mind, so that it is possible to save 4'J worth of wasted time in inputting the original image by discovering a problem with the content of the imported original image. (J decreases by 1', the method for processing the image data (1 and 2) provides a puff.

C'R, light (■Required) Due to this purpose), in the present invention, data of a specific part of the image, for example, a rectangular area centered on a specific point, is displayed on the display at the same time as the image data is captured by the layout scanner. Therefore, it is possible to provide a method and apparatus for detecting defects in imported data in real time and immediately importing the data correctly.

[Embodiments of the invention]

The present invention will be described below with reference to the accompanying drawings.
Ru.

FIG. 1 shows the configuration of an embodiment of the present invention, in which 1 is the layout ski ↑・su, and the operation drum 1Δ for capturing the original 1rE 2 image data is processed. It has an exposure plum 1B which is applied later to expose the film. Document 2 taken in by operation drum 1A
The image data is taken into the memory 4 via the control device 3, and the image data taken into the memory 4 is outputted to the exposure drum 1B via the control device 3. This is a basic operation, and in order to perform this basic operation, it is necessary to provide layout position data such as 1 to rimming box enclosure or specific point. There is. Then, place a mount on the data input area and input position data using the cursor 5Δ, and input numerical data etc. using the menu area 5B. A keyboard 6 is provided for the same purpose as this menu area.

On the other hand, the output 100 of the operating drum 1△ of Rayara 1 to Scanyana 1 is also in register 8! 200 is also obtained from the control device 3, and only a predetermined portion of both data from the operating drum 1△ is taken out as data 300 and given to the display 7. It will be done. This auxiliary equipment! 68 (14 composition is a feature of the present invention).

FIGS. 2(a) and (b) show the configuration shown in FIG.
The content of the output 300 of the auxiliary device 8 and the auxiliary device 8 is shown.

First, the output of the scanning drum 1Δ is pixel data 100Δ and +111 signals q1o in the main scanning direction.

B, operation display signal 100C, pixel transfer rl check signal 1
Although it is not the output of 00D and scanning drum 1Δ, reset 1
- signals 100E, etc., which will be described later with reference to FIG. Next, the output 200 of the control device 3 and the output 300 of the auxiliary device 8 are as shown in FIG.
:bi300B.

It includes write clock signals 200C and 300G and signals 2001 to 2001) and 300D.

FIG. 3 shows a detailed configuration of the auxiliary device 8 in the configuration shown in FIG. 1.

This device 8 includes a transfer start position detection circuit 10. Synchronous signal conversion circuit 13. Address conversion circuit 1/I and switching circuit 2
3 is the main component, and the outputs 100A-2001) of the scanning drum 1Δ of the layerer 1 to ski A and S1 are given to form outputs 300A-300D to the display 7.

The transfer position detection circuit 10 includes a register 18d3 for setting and overwriting a starting point, a 212-pixel number counter 17, a scanning line number counter 20, and comparison circuits 19 and 22.

A starting point pixel number (Xs) in the main scanning direction is set in the register 18, and a starting scanning line number (Ys) from 1 in the sub-scanning direction is set in the register 21. This setting uses data from an arithmetic device (not shown) or setting values of a digital switch or the like.

The settings of these registers 18.21 and the comparison circuit 19.
22r Two counters 17.20 form the counts to be compared, and the signals from scanner 1 are scanned. In other words, the scanning line number counter 20 is given the main scanning direction synchronization signal 100B via the inverter 11.16, and performs the scan 1 to the scanning line including the transfer start pixel position [)S, and the pixel number counter 17 performs the above-mentioned The pixel transfer lock signal 100 D lfi is applied to the scanning line containing I-t and iPs at the transfer start search, and the corresponding point "j
Perform Karan 1~ until Ft PS.

When both counts 20.17 reach a predetermined value, outputs B and A are generated from the comparator circuit 22.19 and applied to the address conversion circuit 14 and the Ill/Japanese conversion circuit 13. This address conversion circuit 14 is connected to the display 7.
This is the number that forms the display address in 1 no register 18.21. Counter 17°20, comparison circuit 19.2
2 and calculates the address on the display 7 according to the block diagram given in advance. In addition, the sync signal conversion circuit 13 is supplied with the match detection output of the comparison circuit 19.22 and the pixel transfer lock signal 100D. form a synchronization signal.

The outputs of the address conversion circuit 14 and the synchronization signal conversion circuit 13 are image data 100A and reset signal 100E.
At the same time, the input signal group In-1 and the like are applied to the switching circuit 23.

Another input signal 1YI n -2 corresponding to this input signal group In-1 is applied to the switching circuit 23 from the control device 3 . The other input control signal 8YIn-2 is related to data stored in the memory 4. Switching circuit 2
3 takes out the input signal group In-1 as an output signal 300 to the display 7 when the operation display signal 100C is given to its control terminal SEL, and also outputs the operation display signal 10
0C is applied to the clear terminal CF- of the pixel number counter 17 via the AND circuit 15, and also to the scanning line number counter 2.
It is also applied to the 0 clear terminal C+-, and is reset when these clear terminals become 1- level. Therefore, the pixel number counter 17 is incremented for each scanning line, and the scanning line number counter 20 is reset after all the scanning lines have been transferred.

Figure 4 shows the signal waveforms of each part of the circuit in Figure 3.
Main scanning direction synchronization signal 10 from layerer 1 hesuki Vsu1
0B, operation display signal 100C, pixel transfer lock signal 1
00D and the reset signal 100 from the control device 3.
Along with E, output A of one comparison circuit, output B of comparison circuit 22, and output C of AND circuit 12 are shown.

These two outputs A, B, and C are connected to the above signals j3100B, 1
To explain the relationship between 00C, 100D, and 100E, the output [3 of the comparison circuit 22 becomes 11 when the scanning line number counter 20 receives the main scanning direction synchronization signal 100B by a predetermined number of runs. The output of this comparison circuit 22 B h<1
-1 until one of the inputs of the AND circuit 15 remains at the clear terminal of the pixel number counter 17 CL lfi I
-, therefore, this counter 17 is reset from 1 to 1, and counts the pixel transfer lock signal 100O for the first time when the output B becomes 1-1. When this value reaches a predetermined value, the output becomes 1 and the output becomes OFF at the cycle of the main scanning direction synchronizing signal 100B.

When the outputs A and B of both counters 7 and 20 are 1, the AND circuit 12 supplies a pixel transfer check signal 100D to the synchronization signal conversion circuit 13.

This applied signal is output C.

FIG. 5 shows the image data transferred from Rayara 1 to Sugiyana to the memory 4 and the image data transferred to the display 7 via the auxiliary device 8 as a pair it: l in the present invention. FIG. 6 shows the image information data on the attached mount set on the data tablet 5.

To explain both of these figures, the memory 4 is t--5x
・Transfer start pixel position ps (Xs.

It is assumed that 1 is displayed on the display 7 for a range D in the X direction and D2 in the Y direction, including Ys).

The transfer start pixel position Ps (X
s, Ys) is λ1 to the specific point PO (XO, Yo), and the reference white of H memory 7 is λ1) 1 (Xl
, Yl) e Yohi P2 (X2, Y2)
D6'J... (2) However, Ll - number of pixels per unit length in the sub-scanning direction, L2 - number of pixels per unit length in the sub-scanning direction, 5X = X-direction scan range (m
m) Sy=Y direction scan range<mm) It is expressed as α-magnification ratio. Xs and Y6 obtained in this way are respectively stored in registers 18 and 21 in the circuit shown in FIG.
be tested. The setting method is as described above. When a specific point Po (Xo, Yo) is specified in step 1, the auxiliary device 8 extracts pixel data for the range of D1×r)2 centered on this specific point Po from the data captured by the layout scanner. By observing the image on the display 7, it is possible to discover problems such as poor image color tone, occurrence of moiré patterns, and errors in setting the document capture range. If detected, take measures such as immediately stopping the data importing work and changing the layout scanner settings.

〔Effect of the invention〕

As described above, the present invention displays the data of a specific part of the image, for example, a rectangular area centered on a specific point, on the disc 1 noise at the same time as the image data is captured by the layout scanner, thereby preventing defects in the captured data. This can be known in real time, and compared to the case where the information is displayed on a display after the capture is completed, wasted time in inputting the original image can be significantly reduced.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing an example of the configuration of the present invention;
Figures (a) and (b) are explanatory diagrams of signal contents in the device of Figure 1, Figure 3 is a block diagram showing the internal configuration of the auxiliary device 8 of Figure 1, and Figure 4 is the circuit of Figure 3. Signal waveform diagram of each part,
FIG. 5 is an explanatory diagram of image data transferred from the layout scanner to the memory and display in the present invention;
The figure is an explanatory diagram of an operation for inputting layout position data on a data tablet. 1...Layout scanner, 2...Document, 4...
Memory, 5... Data tablet, 6... Keyboard, 7... Display, 8... Auxiliary device, 10.
...Transfer position detection circuit.

Claims (1)

[Claims] 1. In a method for processing image data for printing plate making, in which layout position data is specified, image data is captured from a manuscript, stored in a memory, and plate making is performed based on this stored data, comprising: 1 of the allocation position data corresponding to the specific point above.
A transfer start pixel position in the image is determined centering on a designated specific point, and image data from the transfer start pixel position for the predetermined area is provided to a display for display without being thinned out. A method of processing image data for printing plate making. 2. Image input means for inputting document image data; and position data input means for inputting layout position data for inputting image data by this image input means; and from the image input means based on the layout position data by this position data input means. a control means for capturing original image data; a memory for storing original image data provided via the control means; A processing device for image data for printing plate making, comprising a means for taking out the data and a display to which the output of the taking out means is given.