JPH02228656A - Method and device for displaying trimming point for image processing system - Google Patents

Abstract

PURPOSE:To definitely discriminate a trimming point for alignment by displaying the trimming point by means of blinking it in an image or displaying the point in a color having a color difference from the color density of the neighboring image. CONSTITUTION:In the case of arranging the image information of a color photograph O being an original at a desired position, a picture element X0 corresponding to the coordinate information of the trimming point P for alignment is set as a center and the average color density of eight neighboring picture elements X1-X8 around the central point X0 is calculated. The coordinate information of the trimming point P is displayed in the image on a color display with a circular trimming point auxiliary area in the color having the color difference from the average color density. It is good to blink (on-off) the coordinate information of the trimming point besides the above-mentioned method. Thus, the trimming point P is easily and definitely discriminated in an obvious state without receiving the effect of the design, the pattern and the color tone, etc., of the color photograph O being the original whatever color the periphery of the trimming point P for alignment has.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is applied to an image processing system such as a layout scanner system used when making a plate for originals such as color photographs. pictures and patterns.

The present invention relates to a display processing method and apparatus for trimming points in an image processing system that enable clear discrimination without being affected by color tone or the like.

[Prior Art] Currently, in the field of plate making, a layout scanner system has been developed and put into practical use as one of the image processing systems when making a plate of originals 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 sheet of film, that is, it digitally processes the image information of the document from the color scanner.
It is placed at the desired position indicated on the draft or layout to create four-color plates (yellow plate, magenta plate, cyan plate, and black plate) necessary for printing. 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 for many years may be subjected to image processing such as enlarging, reducing, rotating, etc. , are often trimmed and repurposed and reused. This kind of work is
Generally, the former is often referred to as a collection work, and the latter as a database-based prepress work.

[Problems to be Solved by the Invention] By the way, in such a layout scanner system, when digitally processing the image information of the document from the color scanner and placing it at the desired position indicated on the block or format, Normally, the operator arranges the images shown on the bottom of the plate or format and on the monitor on the layout scanner system. However, in many cases, such a method causes errors due to the operator's visual sense, resulting in poor accuracy and takes a long time. Furthermore, recently, database systems for printed images have been considered, and it would be inefficient if a human operator had to repeatedly arrange photographs that are used many times. Therefore, when placing a photo at a desired position, a characteristic point in the photo (hereinafter referred to as a cropping point) is displayed, for example, with a cross mark "+" in the photo pattern, and this trimming point is used for positioning. It has been proposed to use this method as a method of arranging photographs, and it is possible to significantly improve the efficiency of arranging photographs, and at the same time, to greatly improve accuracy. However, depending on the picture or color tone of the original photo,
It is often difficult to determine this trimming point.

The present invention was made in order to solve the above-mentioned problems, and is an image processing method that makes it possible to clearly identify trimming points for alignment without being affected by the image of the original or the color tone of the pattern. An object of the present invention is to provide a method and apparatus for displaying trimming points in a system.

[Means for Solving the Problems] In order to achieve the above object, the present invention employs image processing that digitally processes image information of a document and places the image information at a desired position while displaying it on an image display means. In a system in which image information is stored in a storage means as a database by adding coordinate information of trimming points for alignment to the image information, the image information and trimming points stored in the storage means When the coordinate information of the trimming point is read out and displayed on the image display means, the coordinate information of the trimming point is blinked, or the pixel corresponding to the coordinate information of the trimming point is set as the center point, and the neighboring pixels around the pixel are The coordinate information of the trimming point is displayed on the image display means using the average color density calculation means that calculates the average color density of Accordingly, a display processing means for displaying the trimming point auxiliary area on the image display means is provided.

[Operations] Therefore, in the present invention, when arranging the image information of a document at a desired position, the trimming point for positioning is displayed blinking in the image, or the color density of the image near the trimming point is Displayed in different colors, and displayed together with a trimming point auxiliary area if necessary, the trimming points for positioning are displayed separately from the image or pattern of the original in one color tone, etc., making it easier to clearly identify the trimming points. It becomes possible to distinguish between

[Example] Hereinafter, an example of the present invention will be described 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, which is an image processing system. As shown in FIG. 1, the layout scanner system of this embodiment includes a color scanner 1 as an image manual means, a magnetic disk 2 as a first storage means,
A digitizer 3 which is an interactive input means, a graphic display 4, a magnetic disk 5 or a floppy disk 6 which is a second storage means, and a magnification angle determining device 7 and a floppy disk 8 which are magnification angle determining means.
, a color display 9 which is an image display means, and a third
The computer 11 is an image processing means, and an output means 12.

Here, the color scanner 1 scans the image of the original color photograph 0 (A has a black edge) as shown in FIG.
This image information is scanned and inputted from the input start point S to the input end point E, and this image information is separated into four color plates necessary for printing: yellow, magenta, cyan, and black, and output. Further, the magnetic disk 2 is used to store image information output from the color scanner 1. On the other hand, the digitizer 3 reads positional information such as the plate size and mask information shown on the draft or format, and displays this on the graphic display 4. Further, the magnetic disk 5 or the floppy disk 6 is used to store device information constituted by the digitizer 3. Further, the magnification angle determining device 7 measures the magnification and tilt angle of the finished document and stores them 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 by adding coordinate information of a trimming point P for positioning to this image information.

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 a color display based on the magnification and tilt angle information stored on the floppy disk 8. When a trimming point P is stored in the optical disc 10, the pixel corresponding to the coordinate information of the trimming point P is set as the center point, and the average color density of eight neighboring pixels around the pixel is calculated. It has a color density calculation function and a display processing function that displays the coordinate information of the trimming point P on the color display 9 together with a trimming point auxiliary area of a predetermined shape using the calculated average color density and a color having a color difference. . Further, the output means 12 includes the computer 1
This outputs the processing information in step 1.

Next, in the layout scanner system configured as described above, the image information of the color photograph 0 that has been color-separated by the color scanner 1 is once stored on the magnetic disk 2. Further, positional information such as the plate making size and mask information shown on the copy or format is read by an appropriate means such as a digitizer 3 and stored on the magnetic disk 5 or floppy disk 6, and is also displayed on the graphic display. 4 will be displayed on top. Furthermore, the magnification and inclination angle of the original in the finished state are determined by the magnification angle adjusting device 7.
is measured and stored on the floppy disk 8. As a result, in the computer 11, the magnetic disk 2
The image information and position information stored on the magnetic disk 5 are read out, and this information is displayed on the color display 9 based on the magnification and tilt angle information stored on the floppy disk 8. In this case, the computer 11 adjusts the relative position between the line indicating the mask displayed on the color display 9 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 each color-separated image, the positions of all images to be output on -sheets of film are determined and outputted from the output means 12.

On the other hand, the image information output from the color scanner 1 is
In order to operate color photo 0 as an image database,
Trimming point P for alignment in the image information
As shown in FIG. 3(a), for example, coordinate information of the trimming point as shown in FIG. 3(a) is added and stored in the optical disc 10 as a database. In this case, the display color and shape of the trimming point P are determined by the computer 11 as follows. That is, as shown in FIG. 4, the pixel X0 corresponding to the coordinate information of the trimming point P
With Xo as the center point, the average color density of the eight neighboring pixels X1 to X8 around this center point "green"), the coordinate information aQ of the trimming point P is displayed on the color display 9 together with the circular trimming point auxiliary area a1.
+m, the line width is 1 pixel, the color is "red", and the center point aQ is also 1 pixel in size, making it easiest to distinguish.

When the color copy J40 is used as an image database, the position of the color review O can be easily aligned by matching the trimming point P with the trimming point on the printing or format.

As described above, in the layout scanner system of this embodiment, when arranging the image information of the color photograph O, which is a document, at a desired position, the pixel Xo corresponding to the coordinate information of the trimming point P for positioning is used as the center. , calculate the average color density of the eight neighboring pixels X1 to X8 around this center point Xo, and use the colors that have a color difference from this average color density,
Since the coordinate information of the trimming point P is displayed in the image on the color display 9 together with the circular trimming point auxiliary area, no matter what color the area around the trimming point P for alignment is, , it becomes possible to easily and clearly identify the trimming point P at a glance without being influenced by the pattern or color tone of the color photograph O that is the original. As a result, the efficiency in arranging the color photographs O at desired positions using the layout scanner system can be significantly increased, and at the same time, it is possible to significantly improve accuracy.

Incidentally, in the above embodiment, the coordinate information of the trimming point of the color photograph as the original is taken in at the time of inputting the image, but the addition of the coordinate information of the trimming point is carried out using the color display 9 connected to the computer 11. It is also possible to give instructions above.

Further, in the above embodiment, the trimming point is set to point P within the picture of the color photo jAO, but the trimming point is not limited to this, and may be set to any arbitrary point on the color photo O.

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

On the other hand, in the above embodiment, the case where the present invention is applied to a layout scanner system has been described, but the present invention is not limited to this. Image information of a document is digitally processed, and the image information is displayed on an image display means while being moved to a desired position. The present invention is similarly applicable to other systems in which image information is stored in a storage means as a database by adding coordinate information of trimming points for alignment to the image information. Is possible.

Further, in the above embodiment, the case where the trimming point is arranged together with the circular trimming point auxiliary area has been described, but the invention is not limited to this, and for example, as shown in FIGS.
They may be displayed in the form shown in the following. That is, in FIG. 3(b), the center of the crosshair is separated from the surrounding lines, and the four surrounding lines b1 to b4 and the center point bo
and have different colors. For example, the surrounding 4
When the book lines b1 to b4 are colored warm orange,
Center point. Let the color of be green. Also, four lines bl""
It is desirable that b4 has a length of 10 pixels and a width of 1 pixel. In FIG. 3(C), the center point co is placed on the diagonally shaded circular plane C1, and the density in the diagonally shaded area is set to half tone. Figure 3(d) is similar to Figure 3(b), but the crosshairs are crossed, and the crossed center point d
A color difference is provided between 0 and the four lines d1 to d, 1. In FIG. 3(e), the center point eO is arranged together with the square trimming point auxiliary area el,
There is a color difference between the two.

FIG. 3(f) is similar to FIG. 3(e), but the center point f is placed on the square plane f, which is shaded, and the density of the shaded area is set to half tone.

Furthermore, in the above embodiment, when displaying a trimming point, the case is described in which the trimming point is displayed in a color that has a color difference from the average color density of the surrounding area. ). Moreover, this blink function and each of the above-described embodiments may be used together. That is, Fig. 3(a)
The center point aO-fO of the trimming points in ~(f) may be blinked while having a color that is different from the average color density of the surrounding area.

〔Effect of the invention〕

As described above, according to the present invention, when arranging image information of an original or manuscript at a desired position, trimming points for alignment are displayed blinking in the image, or images near the trimming points are displayed. It is displayed in colors with color density and color difference, and is also displayed together with the trimming point auxiliary area if necessary.
Use trimming points for positioning to match the image or pattern of the original.

It is possible to provide a display processing method and apparatus for trimming points in an image processing system that can be clearly distinguished without being affected by color tone or the like.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment in which the present invention is applied to a layout scanner system, which is an image processing system, and FIGS. 2 to 4 are diagrams for explaining the functions of the embodiment, respectively. . 1...Color scanner 2...Magnetic disk, 3
... Digitizer 4... Graphic display, 5... Magnetic disk, 6... Floppy disk, 7... Magnification angle setting device, 8... Floppy disk, 9... Color display, 10... Optical disk, 11... Computer, 12... Output means. Applicant's agent Patent attorney Takehiko Suzue

Claims (3)

[Claims] (1) An image processing system that digitally processes the image information of a document and arranges the image information at a desired position while displaying the image information on an image display means, and trims the image information into the image information for positioning. In the device in which coordinate information of points is added and stored as a database in the storage means, when the image information and the coordinate information of the trimming points stored in the storage means are read out and displayed on the image display means, A method for displaying a trimming point in an image processing system, characterized in that the coordinate information of the trimming point is blinked. (2) An image processing system that digitally processes image information of a document and arranges the image information at a desired position while displaying the image information on an image display means, and trims the image information into the image information for positioning. In a system in which coordinate information of a point is added and stored as a database in a storage means, a pixel corresponding to the coordinate information of the trimming point is set as a center point, and the average color density of neighboring pixels surrounding the pixel is calculated. An average color density calculation means; and a display processing means for displaying coordinate information of the trimming point on the image display means using a color having a color difference from the average color density calculated by the average color density calculation means. A display processing device for trimming points in an image processing system, characterized in that: (3) An image processing system that digitally processes the image information of a document and arranges the image information at a desired position while displaying the image information on an image display means, and trims the image information into the image information for positioning. In a system in which coordinate information of a point is added and stored as a database in a storage means, a pixel corresponding to the coordinate information of the trimming point is set as a center point, and the average color density of neighboring pixels surrounding the pixel is calculated. an average color density calculation means; and a display for displaying the coordinate information of the trimming point on the image display means together with a trimming point auxiliary area having a predetermined shape using a color having a color difference from the average color density calculated by the average color density calculation means. 1. A display processing device for trimming points in an image processing system, comprising: processing means;