JPS6370890A - Graphic processor - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a graphic processing device that processes characters and graphics composed of dot patterns.

[Conventional technology]

Conventionally, in this type of device, for example, a high-end word processor equipped with dot patterns (dot fonts) of multiple sizes, when registering external characters, for example, a certain size (56X
Even if a dot pattern is registered in 56), dot patterns of other matrix sizes can be registered individually, or can be reduced or enlarged using an algorithm specific to the machine based on the already registered dot pattern. [Problem to be solved by the invention] However, in the former case, if the size of the implemented font pattern is large, the registration process (inputting one dot at a time) becomes complicated and registration efficiency decreases. In the latter case, the reduction and enlargement algorithm (constant) alone is insufficient, and the character quality cannot be maintained unless the dot pattern is finely adjusted for each size later. Also, depending on the size, there are problems such as not being able to generate a dot pattern of a desired size.

This invention was made to solve the above problems, and extracts the outline of a dot pattern of a predetermined size that is input or registered as a custom character, and scales it to a predetermined size based on the outline information. The object of the present invention is to provide a graphic processing device capable of generating and registering a high-quality dot pattern by filling in the dot pattern on outline information that has been roughly scaled.

[Means for solving problems]

A graphic processing device according to the present invention includes a contour extraction means for extracting contour information from an input or registered dot pattern, and a contour for scaling the contour information extracted by the contour extraction means to an input arbitrary matrix size. information scaling means; a pattern generating means for generating a door) pattern for filling in a closed area composed of contour information scaled by the contour information scaling means; The image forming apparatus is provided with variable-magnification dot pattern storage means for storing the dot pattern.

[Effect]

In this invention, when the contour information of the inputted dot pattern or the registered dot pattern is extracted by the contour extraction means, the contour information scaling means extracts the extracted contour based on the input arbitrary matrix size. Scale information. A closed area composed of the scaled contour information is filled with a dot pattern by the pattern generating means, and a dot pattern of an arbitrary size is generated.

The generated dot pattern of any size is stored in a variable-magnification dot pattern storage means.

〔Example〕

FIG. 1 is a schematic diagram illustrating the configuration of a graphic processing apparatus showing an embodiment of the present invention. Reference numeral 1 denotes a CPU, which collectively controls each part based on a control program stored in a ROM 2. FIG. 3 is a bit map display (BMD) that displays bit data developed in the video RAM (VRAM) 16 at high resolution. Reference numeral 4 denotes a built-in character and graphic file which stores one character information and nine graphic information. 5 is a contour extraction circuit which extracts a contour from the dot pattern input to the BMD 3. Reference numeral 6 denotes an outline reduction/enlargement circuit which reduces or enlarges the outline extracted by the outline extraction circuit 5. Reference numeral 7 denotes a contour interior filling circuit which fills in the inside of the contour extracted by the contour extraction circuit 5. Reference numeral 8 denotes a contour storage file in which contour information extracted by the contour extraction circuit 5 is stored as necessary. A contour extraction memory 9 temporarily stores contour information extracted by the contour extraction circuit 5. Reference numeral 10 denotes a contour reduction/enlargement memory, which uses the pointing device 1 to transfer the contour information stored in the contour extraction memory 9.
The outline reduction/enlargement circuit 6 temporarily holds the enlarged or reduced outline information based on the size information inputted from the keyboard 1 or the keyboard 12.

A generated dot pattern generation file 13 holds a dot pattern filled in the inside of the contour information enlarged or reduced by the contour reduction/enlargement circuit 6 held in the contour reduction/enlargement memory 10. Reference numeral 14 denotes a printer composed of, for example, a laser beam printer, which outputs nine figures, letters, photographs, and the like. 15 is a contour generation circuit that generates a contour based on the contour information stored in the contour extraction memory 9; The keyboard 12 has alphabet keys and alphanumeric keys.

It consists of special symbol keys, function keys, cursor keys, etc.

Next, the character/figure generation operation according to the present invention will be explained with reference to the flowchart shown in FIG.

FIG. 2 is a flowchart illustrating the character/figure generating operation procedure according to the present invention. Note that (,1) to (12) indicate each step.

While looking at the BMD3, operate the keyboard 12 or pointing device 11 to create a dot pattern on the VRAM16, or read out the dot pattern registered in the built-in character/graphics file 4 and write it on the VRAM1.
Develop a dot pattern on 6 (1). In the latter case, the dot patterns can be superimposed by repeating the same procedure. At that time, logical operation processing with the dot pattern to be superimposed is logical sum, logical product,
The configuration is such that exclusive OR etc. can be selected and specified.

Next, the dot pattern developed on the VRAM 16 is read out, and the contour extraction circuit 5 performs contour extraction processing (2), thereby developing contour information on the contour extraction memory 9. Contour extraction is performed by a known method using a mask consisting of a 3×3 small pixel area. Next, since there are many contour points in the contour information developed on one contour extraction memory 9, the dot patterns of the nine characters and figures on the VRAM 16 are temporarily saved to an external storage means, and the dot patterns in the contour extraction memory 9 are stored on the VRAM 16. The contour information is passed through the contour generation circuit 15 to V
Expand it on RAM16. Then, input the contour information on the keyboard 12 until it becomes necessary and sufficient. Pointing device 1
1 to organize the contour points (3), and return to step (3) until the organized contour information is OK (4) 0 Next, the final organized contour information is stored in the contour extraction memory 9
Store in. At that time, the VRA is
When expanding on M16, the control information is displayed and retained together with the dot pattern, and when the operator narrows down the contour information, the displayed dot pattern is changed as the operator deletes, adds, or changes the control information. It is composed of Next, it is determined whether or not to save the contour information 5), and if YES, it is stored in the contour storage file 8 13), and if No, the process proceeds to step (7) and the size of the target dot matrix is input from the keyboard 12. . Next, the contour information stored in the contour extraction memory 9 based on the size of the input dot matrix is passed through the contour reduction/enlargement circuit 6, and further the contour information reduced or enlarged through the contour generation circuit 15 is sent to the contour reduction/enlargement memory 10. Store (8). Next, the reduced or enlarged outline information stored in the outline reduction/enlargement memory 10 is read out, and the inside of the outline information is filled in by the outline internal filling circuit 7 (9). As a result, a sufficiently high-quality dot pattern is generated. For the final fine adjustment, the generated dot pattern is monitored by the BMD 3 via the VRAM 16, and the operator can make the final adjustment of the dot pattern using the keyboard 12 or pointing device 11, and feeds it back to the contour reduction/enlargement memory 10. The 0th order may be configured so that
Determine whether a command to save the dot pattern generated in step (9) is input (10); if No, proceed to step (12) or later; if YES, generate the dot pattern in the dot pattern save file. 13
(11). At this time, if there is an external storage file dedicated to external characters unique to the system, the external characters may be directly registered.

In any case, when registering a custom character dot pattern in an external storage file, it goes without saying that the operator must input a code for calling up the custom character after registration. Next, it is determined whether all the target size inputs have been completed (12). If YES, the control ends; if NO, the process returns to step (7) and steps (7) to (11) are executed. This process is repeated for all sizes of dot matrices that have the same fonts owned by the model.

This process is performed when the font is the same (e.g. Mincho, Gothic)
The process may be performed automatically for all sizes determined to be .

Further, in the above embodiment, the contour extraction circuit 51, the contour reduction/enlargement circuit 62, the contour internal filling circuit 72, the contour generation circuit 15,
Although a case has been described in which the system is configured by hardware, it goes without saying that it may also be configured by software.

〔Effect of the invention〕

As explained above, the present invention includes a contour extraction means for extracting contour information from an input or registered dot pattern, and a contour for scaling the contour information extracted by the contour extraction means to an input arbitrary matrix size. information scaling means; pattern generating means for generating a dot pattern to fill in a closed area made up of contour information scaled by the contour information scaling means; and dots of arbitrary size generated by the pattern generating means. Since a scaled dot pattern storage means for storing the pattern is provided, a uniform dot pattern scaled to any size can always be generated in high quality from a dot pattern created based on the dot matrix size specific to the model. It has the great advantage of being able to be registered.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram illustrating the configuration of a graphic processing apparatus showing an embodiment of the present invention, and FIG. 2 is a flowchart illustrating the character/graphic generation operation procedure according to the present invention. In the figure, 1 is the CPU, 2 is the ROM, 3 is the bitmap display, 4 is the built-in graphic file, 5 is the contour extraction circuit,
6 is an outline reduction/enlargement circuit, 7 is an outline internal filling circuit,
8 is a contour storage file, 9 is a contour extraction memory, 10 is a contour reduction/enlargement memory, 11 is a pointing device, 1
2 is a keyboard, 13 is a generated dot pattern storage file, 14 is a printer, 15 is an outline generation circuit, 16 is a VR
It is AM. Figure 1

Claims (1)

[Claims] In a graphic processing device that processes figures or characters composed of input or registered dot patterns, there is provided a contour extraction means for extracting contour information from the input or registered dot patterns, and a contour extracted by the contour extraction means. A contour information scaling means for scaling information to an arbitrary matrix size inputted thereto, and a pattern generating means for generating a dot pattern to fill a closed area made up of the contour information scaled by the contour information scaling means. 1. A graphic processing means, comprising: and variable-size dot pattern storage means for storing a dot pattern of an arbitrary size generated by the pattern generation means.