JPH03102968A - Scanner system - Google Patents

Abstract

PURPOSE:To improve working efficiency and quality by selecting an optimum look-up table, and applying the hue changing processing to picture information. CONSTITUTION:The look-up tables of plural patterns for changing hue are stored beforehand in a magnetic disk 2. At the time of operating the picture information stored previously as a data base in an optical disk 10, the look-up table to meet a condition at the time of operating and a request to change the hue is selected from among the look-up tables of plural patterns stored in the magnetic disk 2, and the hue changing processing is executed for the picture information by using this selected look-up table.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a layout scanner system used when making a plate for a manuscript such as a color photograph, and particularly relates to a layout scanner system used for plate-making of manuscripts such as color photographs, and in particular for changing the color tone of image information registered in a database. The present invention relates to a scanner system that performs processing without updating image information each time, thereby significantly improving work efficiency and quality.

[Prior Art] Currently, in the field of plate making, layout scanner systems have been developed and put into practical use, for example, when making plates of manuscripts such as color photographs. This layout scanner system has an editing function that can output one or more images in a desired layout on one film.

This type of layout scanner system is sold by many manufacturers and is extremely innovative as a plate-making system. Its common uses include, for example, special processing such as erasing acne, wrinkles, etc. from human images, and plate-making (block collection). In addition, printing color photographs is generally treated as a temporary process, but for catalogs, pamphlets, leaflets, etc., images that have been used once are subjected to image processing such as enlarging, reducing, rotating, etc. In many cases, images are trimmed and reused. In general, the former is often referred to as a collection work, and the latter is referred to as a database-based prepress work.

[Problems to be Solved by the Invention] By the way, commonly used (appropriated, reused) color photographs and the like can be stored and reused in recording media such as magnetic tapes and magnetic disks.

In platemaking work using such a database, the database is usually constructed based on image quality (color tone, etc.)
This will be done with the consent of the customer, but
Often changes are made to this color tone.

That is, although this factor is often on the customer side, it may also be due to variations in quality of quality confirmation means such as proof printing when confirming color tone. Currently, such requests for changing color tones are responded to by updating the registered image information each time.

However, in such a method, the load of image production that occurs when updating image information is very large, and since a manuscript is often required, arranging this is also very time-consuming.

As described above, in conventional layout scanner systems, when changing the color tone of image information registered in the database, the image information must be updated each time, resulting in a significant drop in work efficiency. However, there were problems in improving the quality of plate making, which is an important part of the printed matter production process, and shortening delivery times.

The present invention has been made to solve the above-mentioned problems, and it is possible to change the color tone of image information registered in a database without updating the image information each time. The aim is to provide an extremely reliable scanner system that can significantly improve efficiency and quality.

[Means for Solving the Problems] In order to achieve the above object, the first invention includes an image input means for inputting an image of a manuscript, color-separating the image information and outputting the image information; a first storage means that stores image information to be output and also stores look-up tables of a plurality of patterns for changing color tone; and a second storage means that stores image information output from the image input means as a database. When operating the image information stored in the storage means and the second storage means, the operating conditions and color tones are selected from the look-up table of multiple patterns stored in the first storage means. an image processing means having a color correction function that selects an optimal look-up table meeting a change request and performs color tone change processing on image information using the look-up table, and In a second invention, in a layout scanner system having an editing function that can output at least one image in a desired layout on one film,
An image input means for inputting an image of a manuscript, color-separating the image information and outputting the same; and a look-up table for multiple patterns for storing the image information output from the image input means and for changing the color tone. a first storage means for storing the information, an input means for reading position information such as the plate making size and mask information shown on the layout designation sheet or the master copy, and a second storage means for storing the position information output from the input means. a storage means, a magnification angle determining means for measuring the magnification and inclination angle of the original in a finished state; an image display means; a third storage means for storing image information output from the image input means as a database; and a function of reading the image information and position information stored in the second storage means and displaying this information on the image display means based on the magnification and tilt angle information output from the magnification angle determining means; When using the image information stored in the first storage means, select the optimum look-up table that meets the operating conditions and color tone change request from among the multiple pattern look-up tables stored in the first storage means. and an image processing means having a color correction function for selecting a look-up table and performing color tone change processing on image information using the look-up table.

[Function] Therefore, in the scanner system of the present invention, a look-up table of a plurality of patterns for changing the color tone is stored in advance in the first storage means, and image information stored as a database is stored in the first storage means. During operation, a look-up table suitable for the operating conditions and color tone change request is appropriately selected from among the plurality of pattern look-up tables stored in the first storage means. , by performing color tone change processing on image information using the look-up table,
Color tone change processing for registered image information can be performed without updating the image information each time. This makes it possible to omit the load that occurs when updating image information, greatly increasing the efficiency of operational work using the database, and improving the quality of plate making.

Also, as a look-up table, by setting one for each color of R, G, B or Y, M, C, K that makes up the image information, the tone of each color can be changed independently. This makes it possible to perform extremely detailed color tone change processing on image information.

[Embodiment] In the present invention, look-up tables of multiple patterns for changing color tones are stored in the storage means I in advance, and when using already stored image information, the look-up tables are stored in the storage means. From among the multiple patterns of look-up tables available, select the look-up table that meets the operating conditions and color tone change requests, and use this look-up table to adjust the image information. This process performs color tone change processing.

Hereinafter, embodiments of the present invention based on the above concept will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a configuration example when the present invention is applied to a layout scanner system. The layout scanner system of this embodiment is as shown in FIG.
A color scanner 1 as an image input means, a magnetic disk 2 as a first storage means, a digitizer 3 as an interactive input means, a graphic display 4, and a magnetic disk 5 as a second storage means. Alternatively, a floppy disk 6, a magnification angle adjustment device 7 and a floppy disk 8, a keyboard 91 and a color display 92 as image display means, an optical disk 10 as a third storage means, and an image processing means. It consists of a computer 11, which is a computer, and an output device 12, which is an output means.

Here, the color scanner 1 inputs an image of a color photograph as a document, separates this image information into colors, and outputs it. Further, the magnetic disk 2 stores image information output from the color scanner 1 and also stores look-up tables (LUT) of multiple patterns for changing color tone.

In this case, the look-up table stores, for example, graph information as shown in FIGS. 2(a) to (d) as data, and the
Set one for each color of G, B or Y, M, C, K,
I am trying to change the tone of each color independently. Note that this look-up table can be accessed from the keyboard 91 by
Sometimes, the information is entered and stored while referring to the color display 92.

On the other hand, the digitizer 3 reads positional information such as plate making size and mask information shown on the layout designation paper or the block copy, and displays this on the graphic display 4. Further, the magnetic disk 5 or floppy disk 6 is used to store position information output from the digitizer 3. Furthermore, the magnification angle setting device 7 is
The magnification and inclination angle of the finished document are measured and stored on the floppy disk 8.

On the other hand, the optical disc 10 stores image information output from the color scanner 1 as a database. The computer 11 also reads the image information and position information stored on the magnetic disk 2 and the magnetic disk 5, respectively, and displays this information on the color display 92 based on the magnification and tilt angle information stored on the floppy disk 8. When operating the image information stored on the optical disk 10 and the image information stored on the optical disk 10, the operating conditions and color tone changes can be selected from among the multiple pattern look-up tables stored on the magnetic disk 2. It has a color correction function that selects the optimum look-up table that meets the requirements and performs color tone change processing on image information using this look-up table. Further, the output device 12 outputs processing information from the computer 11 as a plate-making film.

Next, the operation of the layout scanner system configured as above will be explained.

In FIG. 1, image information of a color photograph separated into colors by a color scanner 1 is once stored on a magnetic disk 2. As shown in FIG. In addition, positional information such as plate making size and mask information shown on the layout designation paper or block copy can be
The information is read by an appropriate means such as No. 3, stored on the magnetic disk 5 or floppy disk 6, and displayed on the graphic display 4. Furthermore, the magnification and inclination angle of the original in the finished state are measured by the magnification angle measuring device 7 and stored on the floppy disk 8. Furthermore, the image information output from the color scanner 1 is stored on the optical disc 10 as a database.

On the other hand, in the computer 11, the image information and position information stored in the magnetic disk 2 and the magnetic disk 5 are respectively read out, and this information is read out from the floppy disk 8.
is displayed on the color display 92 based on the magnification and tilt angle information stored in the . In this case, the computer 11 adjusts the relative position between the line indicating the mask displayed on the color display 92 and the color-separated image information, and the color-separated image information is automatically placed at a predetermined position. The image information and position information are combined. By performing such image processing on the image information separated into each color, the positions of all images to be output on one sheet of film are determined and outputted from the output device 12 as a plate-making film. Further, if necessary, a color hard copy may be output using a color hard copy machine (not shown).

Next, when using the image information stored as a database on the optical disk 10, the operating conditions and the content of the customer's request for color tone change are sent to the computer 11.
Enter. As a result, the computer 11 selects the operating conditions and color tone changes from among the plurality of patterns stored in the magnetic disk 2 as shown in FIGS. 2(a) to (d). The most suitable look-up table matching the request is selected (if it is not registered, a new look-up table is created according to the customer's request and registered on the magnetic disk 2 at the same time), Color tone changing processing is performed on the image information using this lookup table.

That is, the look-up table in FIG. 2(a) shows that the input (IN) and output (OUT) are the same, and the color tone when using the image information stored on the optical disc 1o is as follows. This means that the stored data remains unchanged.

On the other hand, if there is a request to change the color tone of the image information stored on the optical disc 10, a lookup table to be used is selected according to the contents of the request. For example, if you want to brighten the entire image,
If you use a look-up table like the one in Figure 2(b) and want to darken the entire image, use the second
Using a look up table like figure (c),
If you want to further increase the contrast of the image, use the second
The color tone is arbitrarily changed to the image information stored on the optical disc 10 by using a look-up table as shown in FIG. 1(d).

Also, this look up table
0 (for example, R
, G, B or Y, M, C, K), the tone of each color can be changed independently.

By performing such color tone change processing on each color-separated image information, an image corresponding to the color tone change request from the customer is outputted from the output device 12 as a plate-making film on a single sheet of film. .

As described above, the layout scanner system according to the present embodiment includes a color scanner 1 that inputs an image of a document, separates the image information and outputs it, and stores the image information output from the color scanner 1. A magnetic disk 2 that stores look-up tables of multiple patterns for changing color tones, a digitizer 3 and a graphic display that read positional information such as plate making size and mask information shown on layout designation paper or block copy. 4, a magnetic disk 5 or floppy disk 6 for storing positional information output from the digitizer 3, a magnification angle measuring device 7 and a floppy disk 8 for measuring the magnification and tilt angle of the original in the finished state, a keyboard 91 and The image information and position information stored in the color display 92, the optical disk 10 that stores the image information output from the color scanner 1 as a database, the magnetic disk 2, the magnetic disk 5, or the floppy disk 6 are read out, and this information is stored. I1! is displayed on the color display 92 based on the magnification and tilt angle information output from the magnification angle determining device 7 and the floppy disk 8! When operating the image information stored on the optical disk 10, a look-up table of multiple patterns stored on the magnetic disk 2 is selected that meets the operating conditions and the request for color tone change. A computer 11 having a color correction function selects an optimal look-up table and performs color tone change processing on image information using this look-up table, and outputs processing information in the computer 11 as a plate-making film. The output device 12 is configured to include an output device 12.

Therefore, when actually performing database work, it is not only possible to change the color tone, etc. of registered image information, which has often been a problem in the past, without having to update the image information each time, but it is also possible to perform lookup and other changes without updating the image information each time. By finely modifying the table, it is possible to precisely change the color tone. This makes it possible to omit the load that occurs when updating image information, significantly improving the efficiency of operational work using databases, increasing productivity, and playing an important role in the print production process. This makes it possible to improve the quality of plate making and shorten delivery times.

In the above embodiments, the case where the original is a color photograph has been described, but it goes without saying that other types may be used.

Further, in the above embodiments, the case where the present invention is applied to a layout scanner system has been described, but the present invention can be similarly applied to scanner systems other than the layout scanner system.

In addition, the present invention can be modified and implemented in various ways without changing the gist thereof.

[Effects of the Invention] As explained above, according to the present invention, look-up tables of a plurality of patterns for changing color tone are stored in advance in the storage means, and already stored image information is used. At this time, a look-up table suitable for the operational conditions and color tone change request is selected from among the look-up tables of multiple patterns stored in the storage means, and this look-up table is Since the color tone change process is performed on the image information using It is possible to provide an extremely reliable scanner system that can significantly improve quality and quality.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment in which the present invention is applied to a layout scanner system, and FIG. 2 is a diagram showing a look-up table pattern in the same embodiment. 1...Color scanner 2...Magnetic disk, 3
... Digitizer 4... Graphic disk, 5... Magnetic disk, 6... Floppy disk, 7... Magnification angle setting device, 8... Floppy disk, 91... Keyboard, 92...Color display, 10...Optical disk, 11...Computer, l2...Output device.

Claims (4)

[Claims] (1) Image input means for inputting an image of a document, color-separating the image information, and outputting the image information; and storing the image information output from the image input means and creating multiple look patterns for changing the color tone. - a first storage means for storing an up table; a second storage means for storing image information output from the image input means as a database; and a first storage means for storing image information output from the image input means; When operating, the first
The most suitable look-up table that meets the operational conditions and the request for color tone change is selected from among the look-up tables of multiple patterns stored in the storage means of the A scanner system comprising: an image processing means having a color correction function for performing color tone change processing on image information; (2) As the look-up table, one is set for each color of R, G, B or Y, M, C, K that constitutes the image information, and the tone of each color is changed independently. The scanner system according to claim (1), characterized in that: (3) In a layout scanner system that has an editing function that can output at least one image in a desired layout on a single sheet of film, the image of the original is input, the image information is separated into colors, and the image information is output. an image input means; a first storage means for storing image information output from the image input means and a look-up table of a plurality of patterns for changing color tones; and layout designation paper or block copy. an input means for reading positional information such as the plate making size and mask information shown in the figure; a second storage means for storing the positional information outputted from the input means; and a second storage means for measuring the magnification and tilt angle of the original in the finished state. image display means; third storage means for storing image information output from the image input means as a database; and image information stored in the first and second storage means. and a function of reading out position information and displaying this information on the image display means based on information on the magnification and tilt angle output from the magnification angle determining means, and image information stored in the third storage means. When operating the first storage means, the optimum look-up table is selected from among the plurality of pattern look-up tables stored in the first storage means to meet the operating conditions and the request for color tone change. ,
A scanner system comprising: image processing means having a color correction function for performing color tone change processing on the image information using the look-up table. (4) As the look-up table, one is set for each color of R, G, B or Y, M, C, K that constitutes the image information, and the tone of each color is changed independently. The scanner system according to claim (3), characterized in that: