JPH06100810B2 - Mount information input / editing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is for inputting information on a plate for printing plate by a CCD (charge coupled device) line scanner and editing it into a desired shape for plate making. The present invention relates to a mount information input / editing device used.

[Conventional technology]

Conventionally, the backing sheet that is the basis of the printing plate design is drawn with the finished dimensions of the printing plate, the dimensions of the plate making limit, register marks (dragonfly), paper folds, throat lines, etc. Positioning, solid printing, flat net laying down, etc. can be provided with necessary contact lines on the plate making. Then, paste a photographic printing paper or a block drawing of the original size line drawing, hang a tracing paper, write down the specifications and notes from the top, shoot with a plate making camera, and make a film that will be the basis of print creation.

[Problems to be solved by the invention]

However, in the method of inputting the mount information using the plate making camera as described above, the aberration due to the optical system of the camera cannot be avoided, and the color shift occurs between the position on the mount and the image on the plate or the stamp surface, There was also a problem that the image was distorted. Further, there is also a troublesome difference that information existing on the same mount, such as characters and K, has to be input by different methods and machines.

The present invention has been made in view of the above circumstances,
It is an object of the present invention to provide a mount information input / editing device capable of collectively inputting and editing mount information without causing color shift or distortion.

[Means for solving problems]

Therefore, in the present invention, as means for solving the above-mentioned problems, information on the mount mounted on the digitizer is read at a right angle to the scanning direction while scanning the light incident from directly below each bit position as a medium. A line scanner of a CCD charge-coupled device that can be moved to, an image memory that stores the read data of the line scanner and the absolute coordinate data of the mount by the digitizer, a display device that displays the character and line drawing data stored in this memory, While viewing the data displayed on this display device, the user inputs the data for processing and correction of the necessary data, and at the same time, provides the information for specifying the color for the character and line drawing data, edits these and edits the edited character and Auxiliary input device for instructing to output line drawing data as red, yellow, indigo, black, and mask plates, respectively, Operation over data is to that adopted the configuration of the mount information input and editing apparatus and an image processing apparatus comprising a central processing unit for controlling input and output.

[Action]

In the mount information input / editing device according to the present invention configured as described above, the characters drawn in advance on the plate for mount,
Information consisting of a line drawing is read by the line scanner, and the data is sent to the image memory of the image processing apparatus. In this case, the absolute coordinate data of the read mount information is simultaneously stored in the image memory from the digitizer.

To read information with a line scanner, light from a light source provided in the line scanner is converted into an electric signal by a photoelectric conversion element such as a photodiode, and this is converted into a CCD.
The data is sequentially sent by the charge-coupled device and stored in the image memory. In this case, since the light incident on the line scanner is incident from immediately below each bit position of the photoelectric conversion device corresponding to the image memory, the read data has an error. Is obtained, and the image shift or distortion due to the aberration of the optical system does not occur.

If such accurate data is stored in the image memory, then the data in the image memory is read from the auxiliary input device,
This is displayed on the display device to correct the faintness or breakage of the data, and at the same time, edit the entire image by specifying the desired color or processing other than gradation for the data of the character or line drawing. To do.

The correction of the faintness or breakage of the above data is performed by binarizing the data read by the line scanner, so that fine fading or stepwise breaks occur in the data of the characters and line drawings,
This is done to prevent the printed matter from becoming unusable.

When the necessary correction and editing operations on the read data are completed in this way, the processed data are used to send out the outputs for making red, yellow, indigo, black, and mask plates from the central processing unit. .

〔Example〕

An embodiment of the mount information inputting / editing apparatus of the present invention will be described below with reference to the drawings.

The apparatus of the illustrated embodiment has a CCD line scanner 1 in which CCDs (charge coupled devices) are arranged in the longitudinal direction (indicated by arrow X, but in the scanning direction), and this CCD line scanner 1 is in a direction perpendicular to the scanning direction (arrow Y The digitizer 2 movably attached to the processing unit (CP)
U) 31, an auxiliary input device 32, an image memory 33, and an image processing device 3 including a CRT display 34 are provided, and the output of the character and line drawing data of the image processing device 3 is output from the output device 4 as a plate.

In the mount information input / editing apparatus of this embodiment, the CCD line scanner 1 moves in the X-axis direction while moving information such as figures and characters on the master-print mount B mounted on the digitizer 2 in the Y-axis direction at a predetermined pitch. It is scanned at high speed and supplied as an electric signal to the CPU 31 of the image processing apparatus. Since only the light incident from the direction perpendicular to the paper surface at each bit position is input to the line scanner 1 as the mount information at each bit position,
The problem of displacement and distortion due to aberration does not occur.

The output data of the CCD line scanner 1 is converted into a predetermined format by the CPU 31, and stored in the image memory 33 as image data of characters and line drawings. In this way, mount B
When the entire image data is input and stored, the operator reads the data in the image memory with the auxiliary input device,
The data is displayed on the CRT display 34, and the read data is edited by performing correction such as faintness or breakage, color designation, gradation, and other desired processing. The edited character and line drawing data is stored in the image memory 33 and, if necessary, is supplied from the CPU 31 to the output device 4, where the key, red, eye,
Sumi and mask versions are output. The image data may be edited in parallel with the input of mount information from the line scanner 1, and a floppy disk may be used as the image memory for storing the edited image data.

〔The invention's effect〕

According to the mount information inputting / editing apparatus of the present invention, precise plate making is possible without causing color shift or image distortion.

[Brief description of drawings]

The figure is a block diagram of one embodiment of the mount information inputting / editing apparatus of the present invention. 1 ... Line scanner, 2 ... Digitizer, 3 ... Image processing device, B ... Mount.

Claims (1)

[Claims] 1. The information on the mount mounted on the digitizer is movable in a direction perpendicular to the scanning direction for scanning while scanning the light incident from directly below each bit position as a medium.
A line scanner of CCD charge coupled device, an image memory for storing the read data of the line scanner and the absolute coordinate data of the mount by the digitizer, a display device for displaying the character and line drawing data stored in this memory, and this display device. While viewing the displayed data, input the necessary data for processing and correction, and edit the text and line drawing data by giving information to specify the color for the character and line drawing data. Red, yellow, indigo, ink,
And an image input device including an auxiliary input device for instructing to output as a mask plate, and an image processing device including a central processing device for controlling arithmetic operations and input / output of the various data described above. apparatus.