JPH04216266A - Picture layout device - Google Patents

Abstract

PURPOSE:To exactly and easily set a variable power rate and a rotational angle for correcting an inputted picture by calculating the variable power rate and rotational angle of the picture based on a reference vector and an objective vector. CONSTITUTION:A reference vector setting means 10 sets the reference vector showing the size and direction of the picture to be a reference for executing the rotation and variable power processings of the picture. An objective vector setting means 11 sets the objective vector for specifying the size and direction of the picture to execute the rotation and variable power processings. A magnification/angle calculating means 7 calculates the variable power rate and rotational angle of the picture based on data from the reference vector setting means 10 and the objective vector setting means 11 so as to correct the size or direction of the picture stored in a memory 4. A layout calculating means 9 executes layout calculation concerning the image data to which a casting data and position relation are made correspondent by a picture positioning means 6 and the rotation and variable power processings are executed by a picture processing means 8.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image layout device that can correct the angle and magnification of an input image when editing images using a computer in printing and plate making.

0002

2. Description of the Related Art In recent years, a layout system has been used in the field of printing plate making, in which color separation of a document by a scanner and image data for one page of printed matter are synthesized by computer processing. This layout system is a scanner connected to a computer with a page editing function. Image data captured by the scanner is fed to the computer, and after processing such as layout, it is output to the scanner. The input image is laid out in the following manner.

First, an image of each document to be laid out is read by a scanner and temporarily stored in a memory. Next, layout data consisting of graphic data, etc. is inputted from the digitizer based on the layout specification sheet showing the layout format for printing. Thereafter, the image data stored in the memory is displayed on the display for each document, and at the same time, layout data (mainly graphic data) corresponding to the displayed image is displayed in a superimposed manner on the display. Then, the image and the figure displayed on the same display are moved relative to each other to determine the position of the image that corresponds to the positional relationship between the two. In this way, images are positioned for each document, and when the positioning is completed for all images, layout calculation processing is performed to trim the entire area to a predetermined position and allocate the images, and the printed matter is Image data for a page is created, and the created image data is output from a scanner.

0004

By the way, when inputting an image of each document for performing image layout calculations in the above layout system, the angle and magnification of the image are set on the scanner. In this case, if the angle or magnification of the input image is not accurate, the angle and magnification will be corrected by image rotation and scaling processing within the layout system. This is done by specifying the rotation angle. To make accurate corrections, the operator uses the measurement function of the image display device to measure the lengths and angles of specific sides of the correct image and the image to be corrected, and then calculates the ratio of the measured lengths and angles. It was a very tedious task to calculate the difference between the two and specify the magnification and rotation angle. In particular, when the printed matter is a catalog or flyer, when you want to lay out multiple images with the same size and angle, each image is It is necessary to accurately measure lengths and angles and calculate length ratios and angle differences, which poses a problem in that it places a heavy burden on the operator.

The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an image layout device that can accurately and easily set the scaling factor and rotation angle for correcting an input image. purpose.

[0006]

[Means for Solving the Problems] To achieve this object, the present invention provides an image data input means for inputting an image of a document, an image storage means for storing image data from the image data input means, and an image data input means for storing the image data from the image data input means. layout data input means for inputting image layout data input from the input means; display means for displaying the image stored in the image storage means and the layout data input from the layout data input means;
an image positioning means for associating the positional relationship between the image displayed on the image display means and the layout data; and a reference vector setting means for setting a vector serving as a reference for the size and orientation of the image stored in the storage means. , a target vector setting means for setting a vector for the image displayed on the display means, and calculating a magnification ratio and rotation angle of the image based on vector data from the reference vector setting means and the target vector setting means. a magnification and angle calculation means for calculating the magnification and angle; an image processing means for scaling or rotating the image based on data from the magnification and angle calculation means; and an image layout based on the data from the image positioning means and the image processing means. An image layout device is provided that includes a layout calculation means for performing calculations and an image data output means for outputting image data based on the calculation result of the layout calculation means.

[0007]

[Operation] In the present invention, the image data of the document input from the image data input means is once stored in the image storage means and then displayed on the image display means, and the layout of the image input from the layout data input means is Layout data indicating the above is displayed on the display means, and the image data displayed by the image positioning means is associated with the positional relationship of the layout data. Then, in order to correct the image of each document stored in the image storage means, the image magnification ratio and After the rotation angle is calculated,
The image processing means scales or rotates the image to be corrected based on the set reference vector and target vector. Thereafter, in the layout calculation means, the layout position is determined by the positioning means, and the layout of the image data whose size or orientation has been corrected is performed by the image processing means, and the layout result is output from the image data output means. Output.

[0008]

[Embodiment] An embodiment of the present invention will be described below based on the drawings. FIG. 1 is a block diagram showing an example of the apparatus of the present invention. In the figure, reference numeral 1 denotes an input scanner serving as image data input means of the present invention, which reads an image of a document set on an input drum 1A and performs color separation at a designated magnification. Reference numeral 2 denotes a digitizer serving as a layout data input means of the present invention, which inputs layout data including data of various figures drawn on a designated layout sheet representing the finished appearance of printed matter. A is a computer that performs various calculation processes such as layout calculation of input images, and includes input control means 3, image positioning means 6, magnification/angle calculation means 7, image processing means 8, layout calculation means 9, and output control. Means 12
It consists of A memory 4 serves as an image storage means of the present invention, and stores color separation data of each document from the input scanner 1 and layout data from the digitizer 2 via the input control means 3. 5 is a display serving as a display means of the present invention, which displays the image data and layout data of each document stored in the memory 4, and also displays the image data and layout data of each document stored in the memory 4.
Displays menus for performing various arithmetic operations, and displays instruction data to be given to the computer.

The image positioning means 6 reads the image data and layout data of each document stored in the memory 4, displays them in a superimposed manner on the display 5, and correlates the positional relationship between the two. The magnification/angle calculation means 7 calculates the magnification and rotation angle of the image based on the data from the reference vector setting means 9 and the target vector setting means 10 in order to correct the size and orientation of the image stored in the memory 4. calculate. The image processing means 9 performs magnification processing and rotation processing of the image based on the magnification ratio and rotation angle calculated by the magnification/angle calculation means 7. The layout calculation means 9 performs a layout calculation on the image data whose layout data and positional relationship have been correlated by the image positioning means 6, and which has been subjected to rotation and scaling processing by the image processing means 8 as necessary, and calculates the layout of the printed matter 1.
Image data is created that is trimmed and laid out in a predetermined area such as a page.

Further, the reference vector setting means 10 sets a reference vector indicating the size and direction of the image, which is a reference for performing the image rotation and scaling processing in the magnification/angle calculation means 7. Specifically, the pointing device (
The reference vector is set by instructing the reference vector with the reference vector (not shown). The target vector setting means 11 is for setting a vector for specifying the size and orientation of an image to be subjected to rotation and scaling processing, and uses a pointing device ( (not shown) to set the target vector.

Reference numeral 13 denotes an output scanner which serves as image data output means of the present invention, and outputs laid out image data read out from the memory 4 via the output control means 12 onto an exposed film set on an output drum 13A. Output to. 2 is a flowchart showing the operation of the device shown in FIG. 1, FIG. 3 is a schematic diagram showing an example of layout designation paper representing layout data input from digitizer 2, and FIG. 4 is image data from input scanner 1. A schematic diagram showing the input of
FIG. 7 is a schematic diagram showing operations for image positioning processing, rotation/magnification processing on the display 5, and the operation of the apparatus shown in FIG. 1 will be described below based on the diagram.

First, place the layout designation paper 20 shown in FIG. 3 on the digitizer 2, and operate the cursor to
Input the graphic data drawn at 0, that is, the layout data such as the shape/position data of the graphic and the halftone data. The input allocation data is stored in the memory 4 via the input control means 3 of the computer A. Note that the input of this layout data may not be performed using the digitizer 2, but may be performed using the layout data creation function (not shown) of the computer A.

Next, image data of the document is inputted from the input scanner 1. When inputting this image data,
As shown in FIG. 4, a document 30 is set on the input drum 1A at a predetermined angle, and the resolution magnification is set. Then, the input drum 1A is rotated and the image of the document 30 is read by a scanning head (not shown), and color separation is performed at a set magnification to produce Y (yellow), M (magenta), and C (cyan). ，
BK (black) decomposed image data is created, and this decomposed image data is stored in the memory 4 via the input control means 3. This input of the original image is performed for each original for all the originals to be laid out. In this case, if the angle of the document set on the input drum or the setting of the resolution magnification is not accurate, it will be necessary to perform image scaling/rotation processing to correct the size and orientation of the input image data.

[0014] In this way, inputting the image data of the original,
When the input of the layout data is completed, various calculation processes are performed in the computer A as shown in FIG. Here, first, a document is specified to specify an image to be processed such as positioning (S1), and image data and layout data corresponding to the specified document are read from the memory 4 and displayed on the display 5. The images are displayed in a superimposed manner (S2). FIG. 5 shows the display screen of the display 5. As shown in the figure, the screen 5
In the image display area 51 of 0, an image 60 and a figure 61 which is layout data are displayed in an overlapping manner, and in the upper right of the screen 50 there are menus 52 for "positioning", "reference vector setting" and "target vector setting". , 53, 54 are provided. In this state, it is selected whether to position the image data and layout data, set a reference vector, or set a target vector (S3). This processing selection is
This is done by operating a pointing device (not shown) that specifies the position on the screen 50 and selecting menus 52, 53, and 54.

If menu 52 is selected, image 6
In order to adjust the relative position between 0 and the figure 61, it is determined whether or not to move the figure (S4). If the figure is to be moved, operate the pointing device to move the figure 61 on the screen 50 (S5). ), a positioning process is performed to associate the positional relationship between the image 60 and the figure 61, that is, to determine the relative positions of the two (S6). Since the absolute position of the figure 60 is input as layout data from the digitizer 2, the absolute position of the image 60 is determined by determining the relative position of the image 60 with respect to the figure 61. After that, it is determined whether or not to end the processing for image 60 (S12), and if it is to end, it is determined whether or not to process another document (S13), and if it is not ended, the process returns to step S3. Make a selection. In this embodiment, in order to set a reference vector for the image 60 that has been positioned, the process returns to step S3.

Next, in step S3, the menu 53
If is selected, a reference vector is set. FIG. 6 shows a display screen when setting a reference vector. As shown in the figure, the reference points P and Q for specifying the vector for the reference image 60 are indicated with a pointing device (S7), and the Set vector PQ (
S8). Characteristic points in the image 60 are selected as the reference points P and Q. For the set vector PQ, the angle θ and length L with respect to the reference line g are calculated, and the screen 50 is displayed as shown in the figure.
"Length: 45 Angle: 70" is displayed at the bottom right of the screen. After this, it is determined in step S12 whether or not to end the process, but in this embodiment, the process is ended for image 60, and in step S13 it is selected to process other documents, and in step S1 Returning to , the document is specified, and in step S2, the image data and layout data of another specified document are displayed in a superimposed manner, and in step S3, a target vector from the menu 54 is selected.

When the menu 54 is selected, a target vector is set. FIG. 7 shows a display screen when setting a target vector. As shown in the figure, target points P1 and Q1 for specifying a vector are indicated on the displayed image 70 using a pointing device (S9).
, a target vector is set (S10). In this case, points corresponding to the reference points P and Q of the image 60 are selected as the target points P1 and Q1. For the set object vector P1Q1, the angle θ1 with respect to the reference line g and the length L1 are calculated, and "Length: 50 Angle: 72" is displayed at the lower right corner of the screen 50 as shown. Here, the target vector P1Q
It is necessary to specify whether to change the size or angle of the image 70 set to 1, but this can be done by selecting ``variable magnification'' from menu 55 and ``rotation'' from menu 56 using the pointing device. This is done by If you want to change only the size, select menu 55, if you want to change only angle, select menu 56, and if you want to change size and angle at the same time, select both menu 55 and menu 56, but in this embodiment, Select both menu 55 and menu 56.

Thereafter, the magnification ratio and rotation angle of the image 70 are calculated based on the set reference vector PQ and object vector P1Q1 using the following equations (S11). Magnification ratio (%) = (L/L1) x 100
Rotation angle (deg) = θ−θ1
The calculated magnification ratio and angle (counterclockwise is positive) are shown in the lower right corner of the screen 50 as "Magnification: 90 Angle:
-2” is displayed. The image 70 is actually scaled and rotated based on the magnification ratio and rotation angle calculated in this manner, and the size and orientation of the image 70 are corrected to match those of the image 60.

By the way, since only the image 70 is subject to the scaling and rotation processing based on the scaling factor and rotation angle calculated in step S11, the figure 71 which is the layout data is
The relative position of the image 70 will shift. Therefore, if a point at which the relative position of the image 70 and the figure 71 is not changed is designated in advance using the pointing device as a fixed point, there is no need to perform the positioning process in step S6 again after calculating the magnification ratio and rotation angle in step S11.

In this embodiment, the reference vector is set by specifying two points on the reference image 60, but the setting of the reference vector is not limited to specifying two points on a specific image. It may also be set numerically. When the angle is set numerically, the rotation angle of the image is calculated by setting the target vector to the desired position. Setting the angle using this numerical value is convenient when aligning a plurality of images to a certain fixed angle, such as the horizontal direction (0 degrees) or the vertical direction (90 degrees). Further, it goes without saying that the reference vector can be set numerically in the same manner as in the case of the variable magnification ratio.

[0021] When the positioning process in step S6 and, if necessary, the calculation of the magnification ratio and rotation angle in step S11 are completed for all the original images input in this way, the actual magnification process for the target image is completed. - Rotation processing is performed (S14), followed by layout calculation (S14).
15). In this layout calculation, only the portion surrounded by the figure of the layout data, that is, the trimming range, is extracted from each image and placed at the position determined in step S6, to create image data laid out in a predetermined area. . Specifically, the image 60 shown in FIGS. 5 and 6
, 70 are cut out as figures 61 and 71 and sequentially allocated to the positions shown in FIG.

Next, the image data created by the layout arithmetic processing is temporarily stored in the memory 4, and then read out by the output control means 12 and set on the output drum 13A of the output scanner 13 as image data for one page of printed matter. The image is output onto the exposed film (S16), and a film original plate for printing is created.

[0023]

As described above, in the present invention, when performing layout calculations on input image data of a document based on layout data, the image data of each document stored in the image storage means is corrected. After the image magnification and rotation angle are calculated from the reference vector that serves as a reference for the size and orientation of each image and the target vector that indicates the size and orientation of each image, the image processing means Since the image to be corrected is scaled or rotated based on the target vector, if the size or orientation of the input image is inaccurate, the correction can be done accurately and easily, resulting in layout work. This has the effect of improving the efficiency of

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of a device of the present invention.

FIG. 2 is a flowchart showing the operation of the apparatus shown in FIG. 1;

FIG. 3 is a schematic diagram showing an example of layout designation paper representing layout data input from the digitizer 2;

FIG. 4 is a schematic diagram showing input of image data from the input scanner 1.

FIG. 5 is a schematic diagram of a display screen of the display 5 that performs image positioning processing.

[Figure 6] Display 5 when setting the reference vector
FIG. 3 is a schematic diagram of a display screen of FIG.

[Figure 7] Display 5 when setting the target vector
FIG. 3 is a schematic diagram of a display screen of FIG.

[Explanation of symbols]

Claims (1)

[Claims] Claim 1: Image data input means for inputting an image of a document; image storage means for storing image data from the image data input means; and image layout data input from the image data input means. A layout data input means, a display means for displaying the image stored in the image storage means and the layout data input from the layout data input means, and a positional relationship between the image displayed on the image display means and the layout data. an image positioning means for associating the images, a reference vector setting means for setting a vector serving as a reference for the size and orientation of the image stored in the storage means, and a reference vector setting means for setting a vector for the image displayed on the display means. a target vector setting means, a magnification/angle calculation means for calculating a magnification and rotation angle of an image based on the vector data from the reference vector setting means and the target vector setting means; an image processing means that scales or rotates the image based on the data;
It is characterized by comprising: a layout calculation means for performing an image layout calculation based on data from the image positioning means and the image processing means; and an image data output means for outputting image data based on the calculation result of the layout calculation means. Image layout device.