JPH04289979A - Image erasing device - Google Patents

Abstract

PURPOSE:To provide an image erasing device with good erasing efficiency. CONSTITUTION:When an index 2 for erasing is designated by a coordinate input device 16, the cursor is moved to the centroid of an index for erasing and the index 2 for erasing is designated, the index for erasing becomes the movable condition. Then, when the cursor is moved, the index for erasing is also moved together. Thus, the index for erasing is moved, the erasing range is designated, and thereafter, by giving the erasing instruction, the erasing range is erased. The size of the index for erasing is arbitrarily set.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image erasing device for erasing unnecessary images on a screen.

0002

2. Description of the Related Art Generally, in order to erase unnecessary images on a screen, a function for erasing all the images on the screen and a function for erasing only a part of the images on the screen are used. In the former case, everything is erased, so the process is relatively simple, but in the latter case, the necessary parts must be left, so some measures were taken.

[0003] In a general method of erasing a part of an image, when the erasing function is selected, an erasing index is first displayed on a part of the screen. Therefore, the area to be erased is specified by tracing the part of the figure to be erased using this index. That is, as shown in FIG. 5, by tracing the portion to be erased with an erasure index, the erasure range shown by hatching is specified.

If execution of erasing is instructed after specifying the erasing range in this way, the figure in the designated erasing range, in this example, the hatched portion in FIG. 5, is erased.

In this case, since the size of the erasing index is predetermined, in order to efficiently perform an erasing operation over a wide area, the displayed image is displayed in a reduced size and the relative size of the displayed image with respect to the erasing index is adjusted. I'm trying to reduce the area. Furthermore, when erasing a minute part, the display image is enlarged to increase the relative area of the display image with respect to the erasure index so as not to erase the necessary part.

[0006]

[Problem to be solved by the invention] However, when a figure is enlarged, depending on its size, only a part of the original figure may be displayed on the screen, and in this case, it is difficult to grasp the image of the original figure. Therefore, there is a problem that it is not suitable for delicate erasing. Even when the image is reduced, it is difficult to erase sensitive areas, so the area must be partially enlarged and then erased, which results in extremely poor work efficiency.

The present invention has been made in view of the above situation, and an object of the present invention is to provide an image erasing device capable of erasing a natural image without reducing work efficiency.

[0008]

[Means for Solving the Problems] The image erasing device according to claim 1 erases unnecessary images by moving an erasing index displayed on the screen over the necessary erasing range when the image erasing function is designated. The image erasing apparatus is characterized in that it includes an erasing index area variable means for arbitrarily specifying the size of the erasing index.

An image erasing device according to a second aspect of the present invention is characterized in that the image erasing device according to the first aspect further includes display means for displaying an erasing index of a size specified by the erasing index area variable means. shall be.

0010

[Operation] In the image erasing device according to claim 1, the size of the erasing index is arbitrarily specified and it is moved within the erasing range. It can be sized appropriately.

Furthermore, in the image processing apparatus according to the second aspect of the present invention, since an index of a specified size is displayed, operability is further improved.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example in which an image is erased by an apparatus to which the present invention is applied, and this example shows an example in which a figure 1 is erased. When this figure 1 is to be erased, a wide erasing index 2 having a width greater than the horizontal width of the figure 1 is displayed below the figure 1 using a coordinate input device to be described later.

After that, the erasing index 2 is moved upward as shown by the arrow to determine the erasing range, and then
By giving an instruction to execute erasing, the image within the range traced by erasing index 2 is erased.

FIG. 2 is an example of erasing small parts, for example, a circular figure 3a drawn inside figures 3 and 4.
When erasing, the coordinate input device displays an erasing index 2a below the figure 3, which has a width wider than the width of the figure 3a to be erased and is narrower than the interval between the figures 3 and 4.

After tracing over the figure 3a using the erasing index 2a and specifying the erasing range, when an instruction to execute erasing is given, the figure 3a in the erasing range is erased.

FIG. 3 is a block diagram showing the configuration of one embodiment of this device. In the apparatus shown in FIG. 3, a CPU 10 reads out image information from a memory 11, and displays graphics on a CRT 15 via a VRAM (video ram) 12, a CRT controller 13, and a video interface 14. Note that the symbol 16 is a coordinate input device, such as a mouse. In addition to inputting coordinate input information, this mouse is also designed to select various icons displayed on the CRT 15 to select functions.

In the following example, figure 1 in FIG. 1 is displayed, and an example of erasing it using erasing index 2 will be explained. FIG. 4 is a flowchart showing the operation of the device shown in FIG. 3, and shows, as an example, a case where the device is operated using a one-button mouse.

First, in step 100, the erase function is selected. As described above, most of the various functions of this device are performed using a mouse that also serves as a coordinate input device. Selection of this image erasing function is also performed by selecting the "image erasing" icon displayed on the CRT 15 with the mouse and clicking the mouse button.

When the selection of the image erasing function is completed, the erasing index 2 is displayed as shown in step 101. That is, while looking at the figure to be erased displayed on the CRT 15, an erase index 2 wider than the figure to be erased is inputted below it using the coordinate input device 16 of FIG. 3 (erase index area variable means). In this example, the mouse also serves as the coordinate input device 16, and the position of one end of the erasing index 2 is determined by moving the blinking cursor to a desired position and clicking the mouse button.

Next, the cursor is moved again to the other end position intended as the erasing index 2, and the designation of the erasing index 2 is completed by double-clicking the mouse button. By this operation, the size of the erase index is stored in the memory 11.

[0021] After that, move the cursor to the index 2 for erasing.
When the user moves the index to the center of gravity and clicks the button, the erasing index 2 starts blinking, as shown in step 102. In this state, the erasing index 2 becomes movable, so when the cursor is moved to the position of the figure 1 to be erased as shown in step 103, the erasing index 2 also follows the movement of the cursor. and move. In this way, by tracing the portion of the figure 1 to be erased with the erasure index 2, the erasure range is specified.

Since the erasing range has been determined at this stage, an instruction to erase the image is given as shown in step 104. This is done by double-clicking the mouse button. This instruction erases the figure in the previously designated erasure range.

Note that in the above embodiments, the size of the erasing index is constant, but it is not necessary to use erasing indexes of the same size for the same figure.
For example, if you want to erase a fine part after deleting a large figure, specify the erase range with a large erasure index up to a certain part, erase the specified range at that stage, and then erase the fine part. A small erasing index may be generated and a minute portion may be erased using the new erasing index.

The coordinate input device may be of a type in which a cursor (pen) is moved on a digitizer, or a region may be specified by moving a cursor using a cursor movement key.

[0025]

As described above, according to the image erasing device according to claim 1, the erasing range is traced using an erasing index of an arbitrary size, and after specifying the erasing range, an erasing instruction is given to delete unnecessary items. Since the image is erased, it is now possible to erase the image using the erasing index that matches the area to be erased, which improves erasing efficiency and allows you to enlarge or reduce the size of the image to be erased. This eliminates the need to perform erasing at the same time, and has the effect that erasing can be performed with very good workability.

Further, according to the image erasing device according to the second aspect of the present invention, since the erasing index of a specified size is displayed, the operability is further improved.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of erasing operation by the device of the present invention.

[
FIG. 2 is a diagram showing another example of the erasing operation by the device of the present invention.

[
FIG. 3: Block diagram showing the configuration of an embodiment of the present invention

[Figure 4
] Flowchart showing the operation of the device in FIG. 3

[Fig. 5] A diagram showing an example of erasing operation by a conventional device.

[Explanation of symbols]

10 CPU 11 Memory 12 VRAM 13 CRT controller 14 Video interface 15 CRT

Claims (2)

[Claims] Claim 1: An image erasing device that erases an unnecessary image by moving an erasing index displayed on a screen over the necessary erasing range when an image erasing function is designated, wherein the size of the erasing index can be set arbitrarily. An image erasing device characterized by comprising erasing index area variable means that specifies. 2. The image erasing device according to claim 1, further comprising display means for displaying the erasure index of a size specified by the erasure index area variable means. Device.