JPH05113780A - Power varying method for charagter pattern - Google Patents

Abstract

PURPOSE:To make even a thickness of various lines which constitute characters by determining a line to be deleted or overlapped when a presence or absence of a drawing point is recognized and contracted. CONSTITUTION:A CPU 1 makes a control of an entire device and calculation processing, etc. Also a RAM 3 is an area in which an window system is loaded from a ROM(read only memory) 2 and external memory device 9 and used as a data memory area with no use limit, and programs and data for each processing are loaded and executed. When the character pattern is divided in vertical or lateral direction, and presence or absence of a drawing point for the entire character pattern or divided pattern for each line in vertical or lateral direction is recognized and the drawing point is contracted, a line which is to be deleted or overlapped is determined. Thus a thickness of various lines which constitute characters is made even and the characters can be processed without impairing a balance of the characters.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character pattern scaling method, and more particularly to a character pattern scaling method in a system capable of displaying or printing characters represented by personal computers, word processors, DTP devices and the like.

[0002]

2. Description of the Related Art Conventionally, this type of pattern enlarging / reducing method has been described by deleting or superposing, adding or inserting a specific line for each element of the entire width or height of a character pattern. The character pattern was enlarged and reduced.

Specifically, as shown in FIG. 1 (a), "16
To reduce a "dot × 16 dot" character pattern by 4 dots in the vertical direction (that is, to 12 dots), simply divide the character pattern into five equally, as shown in FIG. 1 (b). The method of obtaining a character pattern as shown in FIG. 1C is adopted by superimposing one line at the top and the bottom of each of the divided patterns. In addition, the process shown in FIG.
The character pattern shown in (e) was acquired.

[0004]

In the above-mentioned conventional enlargement / reduction system, the enlargement or reduction depending on the size of the character pattern, or
The part to be reduced is limited, and the quality of the character after expansion and reduction is significantly degraded. Also, the quality of the character varies depending on the pattern of the character (Hiragana, Kanji, alphabet, etc.) to be output. Met. By subjecting the line segments forming a so-called character pattern to enlargement / reduction processing, as shown in (c) of FIG. 1, a thick portion and a thin portion are partially formed, which deteriorates the appearance quality. There was a problem.

The problem is that the character pattern after processing is
This is due to the fact that there is little difference from the original pattern and it is a technique aimed at minimizing the change in appearance of the letters. Similar to the reduction, the enlargement processing also employs a processing method that emphasizes the balance of characters, so that the same problem occurs.

An object of the present invention is to solve the above problems and to make the thicknesses of various line segments forming characters as uniform as possible,
Another object of the present invention is to provide an enlarging / reducing method or device for enlarging / reducing processing without impairing the balance of characters.

[0007]

In order to solve the above-mentioned problems, the present invention divides a character pattern in the vertical or horizontal direction, and the whole character pattern or each line in the vertical or horizontal direction of the divided pattern. For each time, the presence or absence of drawing points is recognized, and when reduction is performed, the line to be deleted or overlaid is determined.

Alternatively, when the character pattern is divided in the vertical or horizontal direction and the presence or absence of a drawing point is recognized for the entire character pattern or for each line in the vertical or horizontal direction of the divided pattern, the enlargement processing is performed. The line to be added to or inserted into is determined.

[0009]

EXAMPLES Next, examples of the present invention will be described.

It should be noted that the present invention may be achieved in a system including a plurality of devices or may be achieved in an apparatus including a single device. Further, it goes without saying that the present invention is also applied to the case where the present invention is achieved by supplying a program to a system or an apparatus.

FIG. 6 is a block diagram showing the basic configuration of the present system according to the present invention. The system may be a Japanese word processor, a workstation or a computer system. In FIG. 6, reference numeral 1 denotes a CPU, that is, a central processing unit, which performs control and arithmetic processing of the entire apparatus. 2 is R
OM, which is a read-only memory, is a storage area for the system startup program, character patterns, data, etc.
For example, it is used when the window system outputs characters such as menus. Reference numeral 3 denotes a RAM, that is, a random access memory, which is loaded with a window system from the ROM 2 or the external storage device 9 and is used as a data storage area with no use restriction. Area) and data is loaded and executed. Reference numeral 4 is a KBC, that is, a keyboard control unit, which receives key input data from the KB of 5, ie, a keyboard, and transmits it to the CPU 1. Reference numeral 6 denotes a CRTC, that is, a display control unit, and when a display request is issued from the window system, a display is performed on the CRT, that is, a display device of 7. Reference numeral 9 denotes an external storage device such as an FD, that is, a floppy disk device or an HD, that is, a hard disk device, which stores programs and data.
At the time of execution, it is referred to or loaded into the RAM 3 as needed. Reference numeral 8 is a DKC, that is, a disk control unit, which controls data transmission and the like, 10 is a PRTC, that is, a printer control unit, and 11 is a PRT, which is a printer device. Reference numeral 12 is a system bus, which should serve as a data path between the above-mentioned components. Note that the program is not limited to the window system as described above, and various programs may be stored in the ROM 2.

First, the mechanism of the present invention (process outline)
Will be described.

A character pattern having a width of 16 dots and a height of 12 dots is reduced by 4 dots in the height direction on the basis of a character having a width of 16 dots and a height of 16 dots as shown in FIG. It will be explained assuming it is created.

In this embodiment, (1) First, the character pattern is divided into four in the height direction. (2) Next, each line in the block is searched, and the number of drawing points (portions indicated by black circles in FIGS. 1 to 4) is counted for each line unit. (3) Then, the line with the fewest drawing points is searched. (4) After that, the line and the adjacent line are overlapped.

By taking the above-mentioned method, in particular, by performing the processing described in both the above items (2) and (3), the thickness of a pattern such as a line segment forming a character can be reduced as much as possible. The guarantee is to prevent the deterioration of the character quality.

A more detailed description is added below based on the flowchart of FIG.

In step (S301) of FIG. 5, the means for acquiring character patterns such as fonts is used in FIG.
Get the character pattern as shown in.

In step (S302), step (S302)
The number of blocks when the character pattern acquired in step 301) is divided into necessary blocks is calculated.

In this processing, basically, for reduction,
Set the same number of blocks as the number of lines to be deleted and superimposed.

In step (S303), step (S303)
The number of lines forming each block set in 302) is set for all the blocks to be divided.

Basically, the number of lines is set so that the entire character pattern is evenly divided into a required number of blocks, but a certain block is compared with other blocks. , When there are a large number of drawing points, or when lines for deleting or superimposing for reduction and lines for adding or inserting for enlargement are adjacent to each other as a result, etc. When unexpected situations are expected, such as when the balance of character patterns after processing and deterioration of quality are expected, the number of lines that make up each block is not equal, but one
Alternatively, with respect to a plurality of blocks at specific locations, the number of lines to be configured may be different from the number of lines of other blocks.

In step (S304), step (S304)
302), the character pattern is divided into blocks of the number and the number of lines set in step (S303).

In step (S305), step (S
With respect to all the blocks divided in step (S304) of the number set in 302), all the lines forming the block are searched and the number of drawing points in the line is counted.

In step (S306), it is judged whether or not the drawing points have been counted for all the lines in the specific block, and the necessary number of times (for the number of lines) step (S30).
The process of 5) is repeated.

The step (S307) is a step of counting the drawing points of all the divided blocks and all the lines forming the block.
5) A processing unit for determining whether or not (S306) has been completed, and performing the necessary number of times of loop processing.

In step (S308), step (S308)
Based on the drawing points of each line in each block obtained by the processing up to 307), which line in the currently selected block is to be reduced or enlarged is determined. ..

That is, a process of determining a line to be subjected to deletion for reduction, superimposition processing, addition for expansion, and insertion processing for each block is performed in this step (S308). In this case, as shown in FIGS. 3A and 4C, the line having the fewest drawing points among the lines forming the block and the line farthest from the next block is processed. The target line of.

In step (S309), step (S
308), deletion by reduction, superimposition, etc. of a specific line in the block selected in the process
Alternatively, processing such as addition and insertion by enlargement is performed.

In step (S310), all the divided blocks in step (S308)
It is determined whether the processing line is determined and the reduction or enlargement processing in step (S309) is completed,
This is a processing unit for performing the loop processing for the required number of times.

In step (S311), step (S
The blocks obtained by the processes up to 310) that have been reduced or enlarged have been connected to generate a character pattern. FIG. 4D shows the case of enlargement, and FIG. 3B shows the case of reduction.
Is.

As described above, in the present embodiment, in order to make the description easy to understand, the description has been made by taking a character pattern of "16 dots × 16 dots" which is extremely small as an example. Enlarge character pattern,
Needless to say, it is possible to reduce the size.

As described above, according to the present invention, when enlarging or reducing a character pattern, the thickness of a pattern such as a line segment forming a character in the direction of enlarging or reducing is guaranteed as much as possible, and The present invention is a method and apparatus for enlarging and reducing without impairing the overall balance (character surface) of a character pattern. Further, the present invention is not a method and apparatus for only the entire character, There is no problem even if the radicals that compose a character such as "creation" and "crown" are divided, and then enlarged and reduced by the same method (technique) and recombined.

As described above in detail, the case of using the "character pattern enlarging / reducing method and apparatus" of the present invention.

In particular, it is most used when displaying and outputting a sentence on a display output medium having a resolution higher than that of a display or the like, which uses a CRT or liquid crystal which is widely used as a display means for personal computers, word processors, DTP devices and the like at present. It is an effective means for displaying, printing, or printing out a character pattern of 10 points or more, which is the size of a character, on the same medium using a limited font.
It exerts a great effect when enlarging or reducing a character pattern that has vertical and horizontal straight lines as elements such as “calligraphy”, “country”, “a”, and “hour”.

Similarly, when characters having a low proportion of drawing points in the two-dimensional area of the entire character pattern, such as hiragana, katakana, alphanumeric characters, and symbols, are enlarged or reduced using the present invention. Also exerts a tremendous effect.

In addition, the effectiveness of the present invention becomes clearer when considering that these characters are characters that are frequently used in sentences.

[0037]

As described above in detail, according to the present invention, a character pattern is divided in the vertical or horizontal direction, and the entire character pattern or each line in the vertical or horizontal direction of the divided pattern is drawn. It has become possible to provide a scaling method of a character pattern for recognizing the presence / absence of dots and determining a line to be deleted or superimposed when performing reduction.

As described above in detail, according to the present invention, the character pattern is divided in the vertical or horizontal direction, and the drawing point of the entire character pattern or each line in the vertical or horizontal direction of the divided pattern is set. It has become possible to provide a scaling method for a character pattern that recognizes the presence or absence and determines a line to be added or inserted when performing enlargement processing.

[Brief description of drawings]

FIG. 1 is a basic explanatory diagram of character pattern reduction processing.

FIG. 2 is a basic explanatory diagram of character pattern enlargement processing.

FIG. 3 is an explanatory diagram of character pattern reduction processing.

FIG. 4 is an explanatory diagram of character pattern enlargement processing according to the present embodiment.

FIG. 5 is a flowchart of a character pattern scaling process.

FIG. 6 is a system block diagram.

[Explanation of symbols]

 1 CPU 2 ROM 3 RAM

Claims (2)

[Claims] 1. When a character pattern is divided in the vertical or horizontal direction and the presence or absence of a drawing point is recognized for the entire character pattern or for each line in the vertical or horizontal direction of the divided pattern to reduce the size. A method for scaling a character pattern, characterized in that a line to be deleted or superimposed is determined. 2. A case in which a character pattern is divided in the vertical or horizontal direction, and the presence or absence of a drawing point is recognized for the entire character pattern or for each line in the vertical or horizontal direction of the divided pattern, and enlargement processing is performed. A method for scaling a character pattern, characterized in that a line to be added or inserted into is determined.