JPH01219958A - Image processor - Google Patents

Abstract

PURPOSE:To easily understand relation of a partial image which is enlarged and an original image by setting a partial range in the original image which is displayed, displaying a frame for showing its range, enlarging an image in its range and displaying it by other display part. CONSTITUTION:An image which is used as an editing object is read by an image scanner 3, and displayed on an original image display window of a display 2. When a desired partial range of an original image which is displayed on this original image display window is set by a pointing device 6, a frame for showing its set range is displayed together with the original image. When its enlargement is instructed by a keyboard 5, the image in its frame is enlarged and displayed on a dot editing window of the display 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image processing apparatus, and particularly to an image processing apparatus that enlarges and displays a part of an image for editing.

[Prior Art] Normally, when a part of an image is edited such as correction using this type of device, the vicinity of the corrected part is usually enlarged and displayed. Specifically, in many cases, a cursor linked to a pointing device is moved to the corrected location. When this operation is completed, the image with the specified position as the center and the preset magnification ratio is displayed on the display screen, and the next operator's instructions are used to edit the dot unit (for example, turn on/off the dot, etc.). )I do.

By the way, when editing a partial image, it is often the case that an attempt is made to correct an image located beyond the front single screen. Normally, in response to such a request, the displayed image is scrolled vertically and horizontally to display and edit the target position.

[Problem to be Solved by the Invention] However, if the position to be edited next is relatively close to the currently displayed position, it is possible to easily display the partial image; If the distance is far away, the above-mentioned scrolling becomes a troublesome operation. Furthermore, when the original image itself consists of complex figures or the like or when the magnification rate is high, a problem arises in that it is difficult to know where the enlarged partial image corresponds to in the original image.

Therefore, in this way, when the next editing target position is far from the position of the displayed partial image, it is possible to stop the enlarged display, display the original image, and then specify the position to enlarge again (destination position). Conceivable. However, such operations only place a burden on the operator and are time consuming.

The present invention has been made in view of such prior art, and makes it possible to easily grasp the relationship between an enlarged partial image for editing processing and an original image, and to display a target partial image at high speed. The purpose of this invention is to provide an image processing device with improved performance.

[Means for Solving the Problem] In order to solve this problem, the present invention includes the configuration shown below.

That is, a first display means for displaying an original image, a range setting means for setting a desired partial range in the original image, a frame display means for displaying a frame of the set partial range, and a first display means for setting a desired partial range in the original image; The present invention includes an enlarging means for enlarging an image within a partial range set by the means, and a second display means for displaying the enlarged image without superimposing it on at least the frame displayed by the frame display means.

[Operations] In the configuration of the present invention, a desired partial range in the original image displayed on the first display means is set by the range setting means, and a frame indicating the set range is displayed by the frame display means. do. Then, the image within the set partial range is enlarged by the enlarging means and displayed on the second display means.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Description of the structure (Figs. 1 and 2)> Fig. 1 is a block diagram schematically showing an image editing device according to an embodiment, and includes a processing device main body 1 (the contents of which will be described later) and the following configurations. .

A display 2 mainly displays images to be edited in the embodiment. 3 is an image scanner that reads images to be edited. Further, 4 is a printer that prints out editing results, 5 is a keyboard for inputting commands and characters related to various operations, and 6 is a pointing device (such as a mouse) for specifying any position of the image displayed on the display 2. ). Further, as external storage means of the image editing apparatus of the embodiment, a floppy disk drive N7, an optical disk device 8, and a hard disk device 9 are provided. The floppy disk device 7 is used to store image files, document files, etc., and is used to read and write personal files. Optical disk device 8
The hard disk drive 9 stores common information such as character fonts, common image files, personal files, and the like.

FIG. 2 is an internal block diagram of the processing device main body 1. As shown in FIG.

Reference numeral 10 denotes a CPU that controls various peripheral devices of the processing device main body 1 and the image editing device via a bus 18. 1
Reference numeral 1 denotes a ROM that stores a program related to the image editing process of the CPU 10, and a program related to the flowchart shown in FIG. 4, which will be described later, is also a part of the ROM. 12 is C
RA used as a buffer to temporarily store data input from the work area of PUl0 and the image scanner
It is M. Further, 13 is a memory management unit that manages each memory, and 14 is a VRAM that develops images to be displayed on the display 2. Further, 15 is a LAN interface for exchanging data with other terminal devices.

A companding circuit 16 compresses or expands image data, and outputs compressed data to the outside via a LAN interface, or expands received data to form display data. Note that similar processing is performed when storing data in an external storage device. ■7
is the image displayed on Display 2 (VRAM14
This is the rask oblation unit that controls the rotation, movement, etc. of the image (developed in the image).

Explanation of Outline of Processing (FIG. 3)> The operating principle of the image editing apparatus of this embodiment with the above-described configuration will be described below.

In the embodiment, as shown in FIG. 3(a), first, an original image display window 21 for displaying the entire original image, a box cursor 22 for specifying an editing target, and a box cursor 22 are displayed.
A dot editing window 23 is displayed in which an enlarged image within the area indicated by is displayed and dot editing is performed. Note that 20 in the figure is the display screen of the display 2. The box cursor 22 is linked to the pointing device 6, and by specifying a desired part of the original image with the box cursor 22, the enlarged image is displayed in the dot editing window 23. It is something.

Now, FIG. 3(b) shows an example in which the box cursor 22 in FIG. 3(a) is moved by operating the pointing device 6. Meanwhile, as the box cursor 22 moves, the enlarged image in the dot editing window 23 also scrolls.

In this way, it is extremely easy to determine which part of the original image is to be edited.

In addition, when displaying an enlarged image to be edited in the dot editing window 23 in FIG. 3(b), simply operate the pointing device 6 to move the box cursor 22.
Since it is only necessary to move the image, the burden placed on the operator is reduced, and the desired enlarged image can be displayed in a short time.

By the way, the process of editing the on/off of dots (pixels) in the dot editing window 23 and the process of editing the on/off of dots (pixels) in the dot editing window 23,
In the embodiment, switching between the two processes of movement 2 is determined based on whether a button (not shown) provided on the pointing device 6 is pressed. That is, the information output from the pointing device 6 includes not only coordinate data but also button on/off information.

Then, while keeping the box cursor displayed at the next point where the press of the button described above is detected, the graphic cursor is made freely movable within the dot editing window 23, and the desired dot on/off is set. The on/off state of this dot is reflected in real time on the original image in the original image display window.

Explanation of Processing Procedure (FIG. 4)> If the configuration and principle of the above-mentioned embodiment are summarized, the flowchart shown in FIG. 4 will be obtained. Hereinafter, the control processing of CPU10 of this embodiment will be explained according to this flowchart.

First, to start dot editing, an image read from the image scanner 3 (or may be read from an external storage device) is displayed on the display screen in the original image display window 21 in step S1.

Next, the process proceeds to step S2, and a box cursor 22 is displayed at a predetermined position (for example, the center) in the original image display window 21, and in step S3, the partial image within the area indicated by the box cursor 22 is enlarged and displayed in the dot editing window 23. to be displayed. Next, information (consisting of coordinate data and the pressed state of the button) is inputted from the pointing device 6, and it is determined in step S5 whether dot editing has been selected or data simply indicates the movement of the box cursor.

When it is determined that the information is related to box cursor movement, that is, when the button press information is inside, the process advances to step S6 and the display position of the box cursor is updated to the corresponding coordinate position.

Thereafter, the process returns to step S3, an enlarged image of the corresponding partial image is displayed in the dot editing window 23, and the above-described process is repeated.

Now, when information related to dot editing is input in step S5, that is, when information indicating that a button has been pressed together with coordinate data is input from the pointing device 6, the process moves to step S7, and dot editing processing is executed.

Note that this content has been explained previously, so it will be omitted here, but it is assumed that extraction from the dot editing process is done by pressing a specific key on the keyboard 5, for example.

In any case, when the dot editing process is finished, the process moves to step S8, and it is determined whether or not to change the editing target. Then, when editing another portion displayed in the original image display window 21, the process moves to step S3 and the same process is repeated thereafter. Further, if the key to end the dot editing process is pressed in step S8, the process returns to the previous process described above.

As explained above, the original image display window, the box cursor for specifying the partial image to be enlarged, and the dot editing window for displaying the enlarged image of the partial image indicated by the box cursor are displayed on the same display screen. Therefore, it is easy to understand which part of the original image the dot editing window corresponds to. Furthermore, since the enlarged image can be displayed in the dot editing window by simply moving the box cursor, the target editing position can be specified easily and quickly.

In the process described above, as the box cursor 22 moves, an enlarged image thereof is displayed in the dot editing window in real time. Therefore, the display of the dot editing window may be stopped until a button for determining the editing position is pressed. This is because by doing so, it becomes possible to reduce the load on the CPU10.

Description of the second embodiment (Figures 5 to 8) In the embodiment described above, the number of dots that can be edited in the dot editing window is constant, and the size of the enlarged partial image is also constant. . Therefore, in the following, a case will be explained in which the number of dots and the size of a partial image displayed in the dot editing window are changed.

Specifically, the size of the area of the partial image to be enlarged is set using a graphic cursor linked to the pointing device 6. For example, a first point is specified with a graphic cursor, and a rectangular area determined by the other point is targeted for enlargement.

As shown in FIG. 5(a), point P is specified with the graphic cursor 26 in the original image display window 25 in which the original image is displayed, and this point is set as a fixed point. Next, by moving the graphic cursor 26, rectangular frames determined by the point P and the point indicated by the graphic cursor are successively displayed. The operator looks at this rectangular frame, and when he/she confirms it, presses a button provided on the pointing device 6. CPUl0 detects the pressing of this button and displays the position and P of the graphic cursor at that time.
The partial image within the frame determined by the points is displayed in the dot editing window 28 as shown in FIG. 5(b).

Therefore, if you control the graphic cursor to form a wider rectangular frame after specifying point P, as shown in Figures 6(a) and (b), it will be enlarged as shown in Figure 6(b). Although the magnification will be lower, it will be possible to edit dots over a wider area.

Also, at this time, it is necessary to calculate the size of the pixel to be displayed in the dot editing window 28, which is calculated using the following formula in the embodiment.

β= L/N However, let N be the number of pixels in the vertical direction within the rectangular frame, let the length in the vertical direction of the dot editing window (constant), and let β be the length in the vertical direction of the desired pixel (assumed to be a square). shall be.

The above-mentioned processing operations are executed by the CPU 10, and the flow of the processing can be summarized as shown in the flowchart of FIG. 7. The flow will be explained step by step below.

First, the original image is displayed in the original image display window 25 in step SIO. Next, in step S11, coordinate data and information regarding button presses are input from the pointing device 6, and in step S12, the display position of the graphic cursor 26 is updated to the corresponding position. Then,
In step S13, it is determined whether the input coordinate values are based on a start point instruction for area setting. When the starting point setting of the area is detected, the process advances to step S14, and the coordinate position input at that time is stored in the RAM 12. Then, the process advances to step S15, and the coordinate position is input in the same manner as in step Sll. In the next step S16, the position of the graphic cursor 26 is updated and displayed based on the input coordinate position, and the coordinate position and RAM 1 are
The display of the rectangle whose diagonal ends are the positions stored in 2 is updated. In step S17, it is determined whether the input coordinate position is based on an end point instruction of area setting. If the end point has been designated, the process proceeds to step 818 and subsequent steps. In step S18, first, the size of the enlarged pixel is calculated from the determined frame size. Then, in step S19, the calculated enlarged pixels are displayed in the dot editing window. At this time, the dot information in the frame (“1”
It goes without saying that whether the enlarged pixel should be made white or black is displayed in the dot editing window while determining whether the enlarged pixel is made white or black.

In this way, for example, the dot editing window 28 shown in FIG. 5(b) is displayed, and hereafter, step S2
0 and executes dot editing processing. After this, if the editing target is to be changed, the process returns from step S21 to step Sll and a new partial image is specified.

In the second embodiment described above, a case has been described in which the size of the pixels displayed in the dot editing window changes depending on the size of the set frame. By the way, it is also possible to directly change the size of pixels within the dot editing window. For example, by displaying the dot editing window 30 as shown in FIG. 8(a) and specifying one of the arrows in the area 31 with the graphic cursor 32, you can create a smaller dot as shown in FIG. 8(b). Dot editing window 3
This is a case where 0° is displayed.

As explained above, according to this embodiment, it becomes possible to set the editing target quickly and easily, and also to know where the enlarged image corresponds to the original image. It becomes obvious at a glance.

[Effects of the Invention] As described above, according to the present invention, it is possible to quickly set the editing target with a simple operation, and
It becomes obvious at a glance where the enlarged image corresponds to the original image.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of the configuration of the image editing device of the embodiment, FIG. 2 is a block diagram of the main body of the processing device in FIG. 1, and FIG. Figure 4 is a flowchart showing the processing procedure in the example, Figures 5 (a) (b) and 6 (a) (b) are the original image and enlarged image in the second example, respectively. FIG. 7 is a flowchart showing the processing procedure in the second embodiment; FIGS. 8(a) and (b) are for explaining the case of changing the size of the dot editing movement in the embodiment. This is a diagram. In the figure, 1...processing device 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... ROM112... RAM, 13... Memory management unit, 14... VRAM, 15... LA
N interface, 16... Companding circuit, 17... Rask operation section, 18... Bus, 20... Display screen, 21... Original image display window, 22...
Box cursor, 23... Dot editing window. Figure 2 (a) (b) (a) (b) (a) (b) Figure 6 (a) (b) Figure 8

Claims (1)

[Scope of Claims] A first display means for displaying an original image; a range setting means for setting a desired partial range in the original image; and a frame display means for displaying a frame of the set partial range. , an enlargement means for enlarging the image within the partial range set by the range setting means, and a second display means for displaying the enlarged image without overlapping at least the frame displayed by the frame display means. An image processing device comprising: