JP2721348B2 - Image processing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus, and more particularly to an image processing apparatus that enlarges and displays a part of an image for editing.

[Related Art] Normally, when editing such as correction of a part of an image with this type of apparatus, it is usual to enlarge and display the vicinity of the corrected portion. Specifically, in many cases, the cursor linked to the pointing device is moved to the correction position. When this operation is completed, an image of a preset magnification is displayed on the display screen centering on the designated position, and a predetermined editing process is performed according to an instruction from the next operator.

[Problems to be Solved by the Invention] However, when a part of the original image is enlarged and displayed, there is a problem that it is not possible to know which position of the displayed enlarged partial image in the original image has been enlarged. In particular, it is difficult for a third party to ascertain which portion has been enlarged and displayed.

The present invention has been made in view of such a problem, and it is possible to easily grasp the positional relationship in a source image of a partial image to be enlarged for an editing process. It is an object of the present invention to provide an image processing apparatus capable of visually recognizing a shape and a size before enlargement.

[Means for Solving the Problems] In order to solve the problems, the present invention has the following configuration.

Image display means for displaying an image in a display area; setting means for setting an enlargement magnification of the image displayed in the display area; shape and size of the display area; and enlargement magnification set by the setting means. Determining means for determining the shape and size of the box cursor indicating the area to be enlarged, position specifying means for specifying a position on the display area, and a position specified by the position specifying means, Box cursor display means for displaying the box cursor determined by the determination means; enlargement instruction means for instructing enlargement of a partial image in the box cursor; and setting when there is enlargement instruction means by the enlargement instruction means. Based on the magnification set by the means,
Display control means for displaying a partial image in the box cursor at a variable magnification.

[Operation] In the configuration of the present invention, the shape and size of the box cursor indicating the enlargement target area are determined and displayed based on the shape and size of the display area where the image is displayed and the set enlargement magnification. The box cursor is displayed at the designated position on the area. Then, when there is an instruction to enlarge the partial image in the box cursor, the partial image in the box cursor is scaled and displayed based on the set magnification.

Embodiment An embodiment according to the present invention will be described below in detail with reference to the accompanying drawings.

<Description of Configuration (FIGS. 1 and 2)> FIG. 1 is a schematic block diagram of an image editing apparatus according to an embodiment, and includes the following configuration including a processing apparatus main body 1 (the contents of which will be described later). .

Reference numeral 2 denotes a display, which mainly displays an image to be edited in the embodiment. An image scanner 3 reads an image to be edited. Reference numeral 4 denotes a printer for printing and outputting editing results and the like; 5 a keyboard for inputting commands and characters related to various operations; and 6 a pointing device (for example, a mouse) for designating an arbitrary position of an image displayed on the display 2. Etc.). The external storage means of the image editing apparatus of the embodiment includes a floppy disk device 7, an optical disk device 8, and a hard disk device 9. The floppy disk device 7 stores an image file, a document file, and the like, and reads and writes a personal file. The optical disk device 8 and the hard disk device 9 store common information such as a character font, a common image file, and a personal file.

 FIG. 2 is an internal block diagram of the processing apparatus main body 1.

Reference numeral 10 denotes a CPU that controls devices related to the processing apparatus main body 1 and the image editing apparatus via the bus 18. 11 is CPU
ROM storing programs related to 10 image editing processes
The program relating to the flowchart shown in FIG. 5, which will be described later, also forms a part thereof. Reference numeral 12 denotes a RAM used as a buffer for temporarily storing data input from the work area of the CPU 10 and the image scanner. Reference numeral 13 denotes a memory management unit for managing each memory, and reference numeral 14 denotes a VRAM for developing an image to be displayed on the display 2. Reference numeral 15 denotes a LAN interface for exchanging data with another terminal device. Reference numeral 16 denotes a companding circuit for compressing or decompressing image data.
The data is output to the outside via the interface, or the received data is expanded to form display data. still,
The same processing is performed when the data is stored in the external storage device. Reference numeral 17 denotes a raster operation unit for controlling rotation, movement, and the like of an image displayed on the display 2 (image developed in the VRAM 14).

<Description of Processing Outline (FIGS. 3 and 4)> The operation principle of the image editing apparatus according to the present embodiment in the above-described configuration will be described below.

It is assumed that an image as shown in FIG. 3A is displayed on the display 2. 20 in the figure is display 2
Is a display screen, and 21 is a graphic cursor linked to the pointing device 6.

In the embodiment, the operator does not specify the center position to be enlarged and displayed while looking at the display screen, but designates a rectangular area to be enlarged and displayed as shown in the figure. In this rectangular area, first, a point P is set by the graphic cursor 21, and this is set as a fixed point. Then, a rectangular area 22 formed by the moving point Q that moves with the graphic cursor 21 is displayed. When an area to be enlarged is formed, a button provided on the keyboard 5 or the pointing device 6 is pressed to notify the CPU 10 that the area setting has been completed. When detecting the completion of the setting, the CPU 10 temporarily saves the displayed image (image data expanded in the VRAM 14) in the RAM 12, and enlarges and displays the image of the set rectangular area (expands the image in the VRAM 14). FIG. 3B shows this state.

By the way, for example, as shown in FIG. 4 (a), when a wider area 23 is set (the rectangular area of P'Q 'in the figure)
Then, an enlarged image of the set area 23 is displayed on the display screen 20. In other words, the magnification for enlarging is determined by the size of the designated area.

As described above, since the position of the region to be enlarged and displayed with respect to the original image can be confirmed, the operability is improved. Also, even a third party can easily grasp which portion has been enlarged.

Further, as in the conventional case, in the case of enlarging and displaying at a predetermined magnification with the designated position as the center in a single designated position, the following problem occurs if the designated position is excessively specified. In other words, there is no problem when the original image is a simple graphic image or when the enlargement magnification (predetermined magnification) is low, but when the original image itself is complicated or when the enlargement magnification is large, the enlarged display is performed. This is a problem in that it is not possible to know where the resulting image falls with respect to the original image.

However, by setting the area to be enlarged and displayed as in the embodiment, it is possible to notify the area to be enlarged. Therefore, these problems can be solved at once, and the enlargement magnification can be set to the size of the designated area. Since it is determined by this, it is possible to designate while drawing the image of the enlarged display image in the head, so that a comfortable operation environment can be given to the operator.

<Explanation of Processing Procedure (FIG. 5)> The CPU 10 executes the processing operation described above.
If the flow of the processing is arranged, it becomes like the flowchart of FIG. Hereinafter, the flow will be described in order, but it is assumed that an image input from the image scanner 3 (or one of the external storage device groups 7 to 9) is expanded (displayed) in the VRAM 14 before this processing. I do.

First, in step S1, coordinates are input from the pointing device 6, and the display position of the graphic cursor 21 is updated to a corresponding position. Next, it is determined whether or not the input coordinate value is based on a start point instruction for area setting. still,
This criterion is determined by pressing a setting key of the keyboard 5 or pressing a button provided on the pointing device 6 as described above. If it is determined that the data is not data related to area setting, the process returns to step S1, and thereafter, steps S1 to S3 are repeated until an instruction to specify area setting is issued. When the start point setting of the area is detected, the process proceeds to step S4, and the coordinate position input at that time is stored in the RAM 12. Then, proceed to step S5,
The coordinate position is input as in step S1. In the next step S6, the position of the graphic cursor 21 is updated and displayed on the basis of the input coordinate position, and a rectangle having the coordinate position and the position previously stored in the RAM 12 on both ends of the diagonal is updated. In step S7, similarly to step S3, it is determined whether or not the input coordinate position is based on an end point instruction for area setting. When the end point is instructed, the process proceeds to step S8, where the input coordinates are stored in the RAM 12 as the end point coordinates relating to the area setting. Next, in step S9, the data in the VRAM 14 is temporarily saved in the RAM 12. The save target is not limited to the RAM 12, but may be one of the external storage devices. After the original image is saved in this way, the enlargement magnification is determined from the size of the rectangular area determined by the set start point and end point and the size of the display screen. As an example, the magnification W is determined by the following arithmetic expression, where the vertical length L of the display screen and the vertical length of the set rectangular area are 1.

W = L / l Next, in step S11, the image data in the set area is read from the save destination, enlarged at the determined magnification, and the enlarged image is developed and displayed on the VRAM 14.

Thereafter, the operator looks at this display screen and executes editing processing such as correction (step S12). Note that this step S
The fact that it was edited in 12 accesses the VRAM 14 and displays the edited content. Also, when finally displaying the entire original image, replace the edited image in the corresponding area,
Alternatively, the image at the save destination may be edited in real time during the editing process.

<Explanation of Second Embodiment (FIG. 6)> In the above-described embodiment, it is set that the operator can create a region to be enlarged in an arbitrary size. Accordingly, when a dissimilar area 24 is set on the display screen 20 as shown in FIG. 6 (a), a portion where nothing is displayed (a hatched portion in the drawing) is formed as shown in FIG. 6 (b). Would.

Therefore, if the shape of the area to be enlarged can be created only in a shape similar to the display screen 20, this problem can be solved.
In order to solve this, the movable direction of the graphics cursor 21 when specifying the end point position related to the area setting is limited to a direction parallel to the inclination of the line connecting the upper left and lower right edges of the display screen. Good.

<Description of Third Embodiment (FIGS. 7 to 10)> In the first and second embodiments described above, an area to be enlarged and displayed is specified, and the area is enlarged according to the size of the area. The magnification was determined.

Therefore, in the third embodiment, instead of calculating the magnification from the size of the set area, a box cursor having a size corresponding to the enlargement magnification set before the area setting (for setting the enlargement target area) Will be described below, and the movement of the box cursor is controlled by the input of the pointing device 6. The configuration of the image editing apparatus in the following description will be described with reference to FIGS. 1 and 2. However, it is assumed that the CPU 10 operates according to a program relating to a flowchart shown in FIG.

A window in the following description is a display area based on the size and shape of an original image. That is, the size of the image read by the image scanner 3 differs depending on the size and shape of the original image.

FIG. 7 shows the relationship between the display screen 20, the window 25, and the box cursor 26 for designating an enlargement target. The box cursor 26 can move freely in the window 26 in conjunction with the pointing device 6. The size of the box cursor 26 is determined in accordance with the magnification input from the keyboard 5, and when the magnification is N and the vertical and horizontal lengths of the window are L _Y and L _X. The vertical and horizontal lengths of the box cursor 26 to be obtained, l _Y and l _X were calculated by the following equations.

l _X = L _X / N, l _Y = L _Y / N That is, box cursor size = window size / N.

Note that FIG. 7 shows the case where N = 4, and when the original image is long in the vertical direction, for example, a window as shown in FIG.
If N = 3 at 27, box cursor as shown
28 is displayed.

In any case, after setting the enlargement magnification and confirming that the box cursor 26 is displayed, the operator moves the box cursor 26 to include the area to be enlarged by the pointing device 6 and starts the enlarged display. Input such an instruction. For example, when the box cursor 26 is moved to the position shown in FIG. 8 (a) and an enlargement start instruction is given from the keyboard, the image in the original image placed in the box cursor 26 has a magnification of 4 times, It is displayed as shown in FIG. After this operation, a predetermined editing process may be executed.

The processing procedure of the CPU 10 in the third embodiment described above will be summarized and described as in the flowchart of FIG.
Hereinafter, the processing procedure will be described. It is assumed that the corresponding program is stored in the ROM 11.

First, a window is displayed on the display screen in step S20, and an image is displayed in the window. In other words,
A window frame pattern is developed in the VRAM 14, and image data (for example, image data read from the image scanner 3) is developed in the frame pattern. In step S21, the enlargement ratio is set using the keyboard 5 or the like, and the next step is performed.
In S22, the size of the box cursor is determined based on the designated magnification. Then, in step S23, a box cursor is displayed at a predetermined position in the window. In step S24, a coordinate position is input from the pointing device 6. Then, the process proceeds to step S25, where the display position of the box cursor is updated according to the input coordinate position, and it is determined whether or not an enlargement display start instruction has been issued in step S26. In this manner, the processing of steps S24 to S26 is repeated until the instruction to start the enlarged display is issued.

When an instruction to start the enlarged display is issued, the process proceeds to the next step S27, where the image data in the window of the VRAM 14 is temporarily saved in the RAM 12, and is designated by the box cursor at the time when the instruction to start the enlarged display is made in the next step S28. The image in the set area is enlarged according to the set magnification and displayed in the window. Thus, various editing processes are executed in step S29.

In the third embodiment described above, the box cursor based on the set magnification is displayed, and the box cursor is moved to set the enlarged display area. By the way, the enlargement magnification may be changed in the course of setting this area, and the size of the box cursor may be changed. In addition, the size of the box cursor is determined based on the set magnification and the size and shape of the window, but is not limited thereto. The point is that the size of the box cursor according to the magnification should be different.

As described above, according to the present embodiment, it is possible to visually notify the position of the region to be enlarged and displayed in the original image and the enlargement magnification thereof.

[Effects of the Invention] As described above, according to the present invention, the positional relationship of a partial image enlarged for editing processing in an original image can be easily grasped, and the area of the partial image to be enlarged can be determined. Since the position, shape and size can be visually recognized before the enlargement, there is an effect that the image editing process can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of the configuration of an image editing apparatus according to an embodiment, FIG. 2 is a block diagram of the processing apparatus main body in FIG. 1, and FIG. 3A shows the relationship between an original image and an enlarged area in the embodiment. FIG. 3 (b) is a diagram showing an enlarged image of the enlarged region of FIG. 3 (a), FIG. 4 (a) is a diagram showing the relationship between another original image and the enlarged region in the embodiment, 4 (b) is a view showing an enlarged image of the enlarged area of FIG. 4 (a), FIG. 5 is a flowchart showing a processing procedure in the embodiment, and FIGS. 6 (a) and 6 (b) are enlarged areas FIG. 7 is a diagram showing a case where the shape of the image is different from the display screen and an enlarged image thereof. FIG. 7 is a diagram showing a relationship between the original image and the box cursor in the third embodiment. FIG. FIG. 8B is a diagram showing a relationship between an original image and an enlarged area in the embodiment. FIG. 8B shows an enlarged image of the enlarged area in FIG. 8A. FIG. 9 is a diagram showing that the shape of the box cursor corresponds to the shape of the original image in the third embodiment. FIG. 10 is a flowchart showing the processing procedure in the third embodiment. is there. In the drawing, 1... The processing apparatus main body, 2... Display, 3.
... Image scanner, 4 ... Printer, 5 ... Keyboard, 6 ... Pointing device, 7 ... Floppy disk device, 8 ... Optical disk device, 9 ... Hard disk device, 10 ... CPU, 11 ... ... ROM, 12 ... RAM, 13 ...
... Memory management unit, 14 ... VRAM, 15 ... LAN interface, 16 ... Companding circuit, 17 ... Raster operation unit, 18 ... Bus, 20 ... Display screen, 21 ... Graphic cursor is there.

Claims (1)

(57) [Claims] An image display means for displaying an image in a display area; a setting means for setting an enlargement magnification of the image displayed in the display area; a shape and size of the display area; Determining means for determining the shape and size of the box cursor indicating the area to be enlarged, based on the enlarged magnification, position indicating means for indicating a position on the display area, and a position indicated by the position indicating means In the case where there are box cursor display means for displaying the box cursor determined by the determination means, enlargement instruction means for instructing enlargement of a partial image in the box cursor, and enlargement instruction means by the enlargement instruction means ,
An image processing device comprising: a display control unit configured to display a partial image in the box cursor by scaling the image based on the enlargement ratio set by the setting unit.