JP3727998B2 - Graphic processing apparatus and graphic processing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a graphic processing apparatus and a graphic processing method for integrally processing a graphic and an image.
[0002]
[Prior art]
Conventionally, graphic processing (geometric processing) and image processing (pictorial processing) are configured as separate processing systems. The functions and operation methods were also different for each processing system.
[0003]
For example, even if an attempt is made to erase a straight line drawn by graphic processing with an eraser, the graphic processing does not have an eraser function, so that processing such as changing the straight line or drawing again has to be performed.
[0004]
[Problems to be solved by the invention]
However, it is difficult for the user to distinguish between graphic processing and image processing, and there is a sense of incongruity in operations that differ between graphic processing and image processing.
[0005]
An object of the present invention is to provide a system in which graphics and images are processed in an integrated manner, and it is not necessary to distinguish between graphics processing and image processing, and even the user does not feel uncomfortable with the operation.
[0006]
[Means for Solving the Problems]
To achieve the above object, an invention according to claim 1, and the figure memory for storing graphic data in a format that includes the attributes of a graphic, the graphic processing apparatus having an image memory, the image of image data to be shown Table First storage means for storing in the memory ; second storage means for storing an identifier of the image stored in the image memory and position information in the image memory in the graphic memory; and A graphic processing apparatus comprising: processing means for processing a graphic and the image by accessing a graphic memory in which an identifier and position information are stored by the storage means of 2 .
[0007]
According to a second aspect of the present invention, there is provided the graphic processing apparatus according to the first aspect, wherein the image memory includes data representing non-transparency, and the superimposed graphic or image is overwritten.
[0008]
According to a third aspect of the present invention, in the graphic processing apparatus according to the second aspect, when the overwriting is performed, the image is designated to be the same as the background color and can be displayed so as to be erased.
[0009]
According to a fourth aspect of the present invention, in the graphic processing apparatus according to any one of the first to third aspects, the process includes an enlargement or reduction process.
According to a fifth aspect of the present invention, in the graphic processing apparatus according to the first aspect, when an image is input, the graphic processing apparatus further includes a specifying unit that specifies an image region, and the region specified by the specifying unit is stored in the image memory. And storing the area information specified by the specifying means in the graphic memory.
[0010]
According to a sixth aspect of the invention, a graphic memory for storing graphic data in a format that includes the attributes of a graphic, a graphic processing method in graphics processing apparatus having an image memory, stores image data to be shown Table in the image memory A first storage step, a second storage step of storing an identifier of the image stored in the image memory and position information in the image memory in the graphic memory, and the second storage And a processing step of processing the graphic and the image by accessing the graphic memory in which the identifier and the position information are stored in the step .
[0011]
According to a seventh aspect of the present invention, in the graphic processing method according to the sixth aspect of the present invention, the image memory includes data representing impermeability, and the superimposed graphic or image is overwritten.
[0012]
According to an eighth aspect of the present invention, in the graphic processing method according to the seventh aspect , when the overwriting is performed, the image is designated to be the same as the background color and can be displayed so as to be erased.
[0013]
A ninth aspect of the present invention is the graphic processing method according to any of the sixth to eighth aspects, wherein the process includes a process of enlarging or reducing.
[0014]
According to a tenth aspect of the present invention, there is provided a computer-readable recording medium storing a program to be executed by a computer for controlling a graphic processing apparatus having graphic memory for storing graphic data in a format including graphic attributes and an image memory. The program stores a first storage step of storing image data to be displayed in an image memory, an identifier of the image stored in the image memory, and position information in the image memory. A second storage step for storing in the graphic memory; a processing step for processing the graphic and the image by accessing the graphic memory in which the identifier and the position information are stored in the second storage step; A computer-readable medium characterized by including:
[0018]
According to the present invention, since a figure and an image can be processed integrally, a user-friendly operation can be realized without distinguishing between the figure and the image for the user.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
[0020]
FIG. 1 is a block diagram showing the configuration of a system in which the present invention is implemented. Reference numeral 1 denotes a CPU, 2 denotes a ROM, and 3 denotes a RAM. The CPU 1 performs various processes while using the RAM 3 as a work memory in accordance with programs stored in the ROM 2 and the RAM 3. Reference numeral 4 is a keyboard, 5 is a mouse, and 6 is a display device (CRT). In this embodiment, since it is a system for processing figures and images, the display device displays figures and images, and in particular, inputs figures and images from a mouse. 7 is a graphic memory, and 8 is an image memory, which may be provided in the RAM 2 or in an external memory (such as a disk). An image editing memory 9 is used as a work memory when performing input or various editing. This may also be provided in the RAM 2 or in an external memory (such as a disk). Reference numeral 10 denotes a display memory, and what is stored in the memory is displayed on the display device 6. The contents of the image editing memory are transferred to the display memory 10 and the contents being edited are displayed. Reference numeral 19 denotes an output image memory, which is provided for compositing so that graphics and images stored in the graphics memory 7 and the image memory 8 can be displayed. The image developed in the output image memory 19 is sent to the display memory 10 and displayed on the display device 6.
[0021]
The graphic data is stored in the graphic memory 7. An example of the format of data in the graphic memory 7 is shown in FIG. In FIG. 2, 11 is a data format representing a straight line, and an identifier indicating a straight line is placed first. The next data indicates a straight line connecting the coordinates x ₁ y ₁ to the coordinates x ₂ y ₂ . RGB is color information and represents the color in which the straight line is displayed.
[0022]
Reference numeral 12 denotes a data format representing an image. Next to an identifier indicating an image, there is data indicating a rectangular area including a diagonal line indicated by coordinates x ₃ y ₃ and coordinates x ₄ y ₄ , followed by the rectangle. there are pointers a _g that indicates the address in the image memory 8 the image data of the region.
[0023]
Reference numeral 13 denotes a data format for representing a circle, followed by an identifier for representing a circle, coordinates x ₅ y ₅ representing the center of the circle, and data representing a radius r. RGB is color information and represents the color in which the straight line is displayed. The last P indicates the display pattern in the circle. Reference numeral 14 denotes an EOB (end of block) which indicates a delimiter of the series of graphic data. Hereinafter, various graphic data are stored in the graphic memory 7 in such a format.
[0024]
Next, processing for creating a graphic stored in this way will be described with reference to FIGS. 3 and 4. The input is performed using the image editing memory 9. 3 and 4 display the contents of the image editing memory 9. The image editing memory 9 has a memory for one screen as shown in FIG. The memory for one screen has a depth of 8 bits for each of three colors, that is, R (red), G (green), and B (blue), and represents grayscale data of each color. Furthermore, it has a bit pattern surface indicating a non-transparent portion. The non-transparent bit pattern surface has a depth of 1 bit, and when it is “1”, the lower image (graphic), that is, the previously input image (graphic) is not displayed. Normally, when an image is input with a mouse or the like, the bit of the input image portion is set to “1”, the lower image (graphic) is overwritten, and the lower image (graphic) is Do not show. Of course, depending on the designation, it is also possible to input so that transmission, that is, the previous input can be seen through.
[0025]
FIG. 3 shows the result of drawing a straight line. By using the mouse 5 to specify the coordinate x ₂ y ₂ from the coordinate x ₁ y ₁ and instructing to draw a straight line, the straight line can be drawn. Moreover, the color of a straight line can also be specified. The data of the drawn straight line 18 is stored in a predetermined format in the graphic memory 7 as indicated by 11 in FIG.
[0026]
FIG. 4 shows the result of inputting the image 15 and the circle 16 with a mouse or the like after the straight line shown in FIG.
[0027]
In order to input the image 15, first, the image input mode is set, and the image is drawn on the display screen with a mouse or the like. Since this image 15 is opaque, the lower straight line does not appear to have been erased with an eraser. The drawn image data is transferred from the image editing memory 9 to the image memory 8. The image created therein is saved by cutting out a rectangle circumscribing the portion where the image was created and transferring the data in the rectangular area from the image editing memory 9 to the image memory 8. Then, a format indicated by 12 is created in the graphic memory 7 by storing an identifier that is an image, diagonal data that indicates a rectangle, and an address of the image memory 8 that is a transfer destination. For cutting out a rectangle circumscribing the image, diagonal coordinates can be obtained by obtaining maximum and minimum coordinate data in the x and y directions. The data thus cut and transferred is shown in FIG. As can be seen from this, the data of each RGB color and the opaque bit pattern surface are cut out and stored in the image memory 8.
[0028]
Circles can also be drawn by pointing the coordinates and radius of the center with the mouse. The drawn circle data is sent to the graphic memory 7 and stored in the format indicated by 13.
[0029]
When these series of inputs are completed, the graphic memory 7 is divided by EOB.
[0030]
In addition, when inputting an image, if the image is input in the same color as the background color, the lower image (figure) is erased, so that the same operational feeling as when erasing with the eraser is obtained. This is called the eraser function. For example, since the background color is usually white, if a white image is input with a mouse, the previously input image (graphics) cannot be seen, and the input image cannot be seen.
[0031]
The data delimited by EOB is synthesized so as to be displayed in the output image memory 19, sent to the display memory 10, and displayed on the display device 6. This output image memory is also a memory having a depth of 8 bits for each of R, G, and B colors. It does not have an opaque bit pattern. The opaque process is performed when graphic data and image data are read from the graphic memory 7 and the image memory 8 and an image to be displayed in the output image memory 19 is created. Further, the output image memory 19 can be made larger than the capacity necessary for displaying one screen.
[0032]
In addition, the input figure or image can be enlarged or reduced. This will be described by taking as an example the case where the straight line 18, the image 15, and the circle 16 are enlarged.
[0033]
When the mouse 5 or the like issues an enlargement instruction to the group of straight lines 18, images 15, and circles 16, position information change processing is performed on the data in the graphic memory 7. For example, when an instruction to enlarge twice is issued around the position of the point 21 in FIG. 4, enlargement processing is performed on the region 20 surrounded by the dotted line in FIG. 4.
[0034]
Assuming that the coordinates of the point 21 are x ₀ y ₀ ,
x ₀ + (x ₁ −x ₀ ) × 2 → x ₁
y ₀ + (y ₁ −y ₀ ) × 2 → y ₁
And is also written into the graphic memory 7.
[0035]
Similarly, for the data of the image 12 and the circle 13, coordinates are calculated and written in the graphic memory. The radius of the circle is doubled.
[0036]
Further, the data corresponding to the image 12 in the image memory 8 is also enlarged by the interpolation method so as to fit the enlarged and enlarged rectangle.
[0037]
These enlarged figures and images are synthesized in the output image memory 19 and displayed.
[0038]
The reduction process is performed in the same manner, but when the image data is reduced, a thinning process is performed.
[0039]
The non-transparent bit pattern surface has been described with a depth of 1 bit. However, it may be configured to have a depth of a plurality of bits and represent transparency.
[0040]
The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of one device. Needless to say, the present invention is also applied to a case where the present invention is achieved by supplying a program to a system or apparatus. In this case, the system or apparatus reads the storage medium storing the program to be expressed by software in order to achieve the present invention, so that the system or apparatus can enjoy the effects of the present invention.
[0041]
【The invention's effect】
As described above, according to the present invention, since a figure and an image can be integrally processed, a user-friendly operation can be realized without distinguishing the figure and the image for the user.
[Brief description of the drawings]
FIG. 1 is a block diagram showing the configuration of a system in which the present invention is implemented.
FIG. 2 is a diagram showing a format of data in a graphic memory.
FIG. 3 is a diagram illustrating input of a straight line.
FIG. 4 is a diagram illustrating input of a straight line, an image, and a circle.
FIG. 5 is a diagram showing data in an image memory.
FIG. 6 is a diagram illustrating an image editing memory.
[Explanation of symbols]
1 CPU
2 ROM
3 RAM
7 Graphic memory 8 Image memory

Claims (10)

In a graphic processing apparatus having a graphic memory for storing graphic data in a format including graphic attributes and an image memory,
First storage means for storing image data to be shown Table in the image memory,
Second storage means for storing in the graphic memory the identifier of the image stored in the image memory and the position information in the image memory;
Processing means for processing the graphic and the image by accessing the graphic memory in which the identifier and the position information are stored in the second storage means;
Graphic processing apparatus comprising: a.   2. The graphic processing apparatus according to claim 1, wherein the image memory includes data representing impermeability, and overwrites an overlapping graphic or image.   3. The graphic processing apparatus according to claim 2, wherein when the overwriting is performed, an image is designated to be the same as a background color and can be displayed so as to be erased.   The graphic processing apparatus according to claim 1, wherein the processing includes an enlargement or reduction process. When an image is input, the image processing apparatus further includes a specifying unit that specifies an image area,
2. The graphic processing apparatus according to claim 1, wherein an area specified by the specifying means is stored in the image memory, and area information specified by the specifying means is stored in the graphic memory. And the figure memory for storing graphic data in a format that includes the attributes of a graphic, a graphic processing method in graphics processing apparatus having an image memory,
A first storage step of storing the image data to be presented Table in the image memory,
A second storage step of storing in the graphic memory the identifier of the image stored in the image memory and the position information in the image memory;
A processing step of processing the graphic and the image by accessing the graphic memory in which the identifier and the position information are stored in the second storage step;
Graphic processing method comprising: a. 7. The graphic processing method according to claim 6 , wherein the image memory includes data representing impermeability, and overwrites the overlapping graphic or image. 8. The graphic processing method according to claim 7 , wherein when the overwriting is performed, an image is designated to be the same as a background color and can be displayed so as to be erased. 9. The graphic processing method according to claim 6 , wherein the processing includes an enlargement or reduction process. A computer-readable recording medium storing a program to be executed by a computer for controlling a graphic processing apparatus having graphic memory for storing graphic data in a format including graphic attributes, and an image memory,
A first storage step of storing image data to be displayed in an image memory ;
A second storage step of storing in the graphic memory the identifier of the image stored in the image memory and the position information in the image memory;
A processing step of processing the graphic and the image by accessing the graphic memory in which the identifier and the position information are stored in the second storage step;
A computer-readable medium comprising:

Images