JPS631590B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a typeface conversion device that converts input characters in an original typeface to another typeface and outputs the converted typeface.

Conventionally, no typeface conversion device of this type existed;
For example, when converting characters (particularly kanji) in a relatively simple font such as Gothic font to characters in a relatively complex font such as Mincho, the design of the special font to be converted is done exclusively by hand. Currently, many hours are spent designing thousands of characters per typeface.

The present invention automatically converts the font to any desired font simply by inputting the character pattern of the original font.
The present invention provides a novel typeface conversion device that is capable of outputting character patterns of the same character in a special typeface with a suitably set border size.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows the basic configuration of a typeface conversion device according to the present invention, in which a plurality of input characters in an original typeface are decomposed in advance into strokes according to each pattern, and the configuration is created for each input character. a process system A that normalizes the stroke of an element according to the typeface to be converted and registers it in a memory M;
A character code to be converted into a typeface is specified, each stroke constituting the specified character is read from the memory M, size conversion and typeface conversion (font conversion) are performed for each stroke, and the code is assembled into a predetermined typeface. and a process system B that outputs characters converted into .

Further, the process system A is composed of an input section 1, a thinning processing section 2, a fulcrum extraction section 3, and a stroke extraction section 4, and the operation of each of these sections is as follows.
Description will be given below with reference to each character pattern shown in FIGS. 3a to 3c.

First, in the input unit 1, a plurality of characters in an original typeface as shown in FIG. By doing this, the density distribution is corrected, and then each character is cut out. Specifically, this input section 1 has a scanner 1 as shown in FIG.
1, a binarization circuit 12 and a character cutting circuit 13. Also, instead of that, in advance
It goes without saying that a device adapted to read dotted character patterns in MT or the like may also be used. FIG. 3a shows the dot pattern when the character ``person'' in the original font is read using a 64×64 pixel configuration.

Next, the thinning processing circuit 2 preserves the connectivity of several neighboring dots (usually about 8 dots) in the dot pattern of each original font inputted by the input unit 1, and thins the dot pattern to a width of 1. That is, the entire character pattern is transformed into a pattern for one pixel. FIG. 3b shows a thinned character pattern.

Next, based on the thinned character pattern, the fulcrum extraction unit 3 detects the inclination of the line segments of the strokes that make up the character, and classifies the points that make up the character based on the inclination of the segments. Find the address on the quadratic coordinates of the fulcrum, that is, the end point of the segment, and the intersection. Specifically, as shown in FIG. 2, the fulcrum extraction unit 3 is composed of a stroke segment detection circuit 31, a fulcrum extraction circuit 32, and a fulcrum correction circuit 33 that corrects the unnaturalness of the extracted fulcrum. has been done. FIG. 3c shows a character pattern from which stroke segments have been extracted, and the effect of fulcrum correction is obvious when compared with the character pattern shown in FIG. 3b.

Finally, in the stroke extraction section 4, based on the inclination of the segment and the address of the fulcrum found in the fulcrum extraction section 3, the strokes that make up the character are connected in both directions by connecting segments with good continuity. Each extracted stroke is normalized according to the typeface to be converted (for example, about 19 types for Mincho typeface, see Figure 5).
The strokes classified for each character are registered in the memory M by comparing the classification with the basic strokes. Although it cannot be said that all typeface conversions are possible with around 19 types of basic strokes, considering that the Mincho font is a relatively complex typeface, the number of types of basic strokes can be significantly increased. There is no. Specifically, as shown in FIG. 2, this stroke extraction section 4 includes a stroke extraction circuit 4
1 and a stroke classification circuit 42.

Next, the process system B includes a character code specifying section 5, a stroke size converting section 6, a stroke font converting section 7, a character synthesizing section 9, and an output section 9.
The operation of each of these parts will be explained below with reference to each character pattern shown in FIGS. 3d to 3g.

First, when the character code specifying unit 5 specifies a code regarding the font and desired stroke size of a character to be converted, each stroke constituting the character is read from the memory M in accordance with the code specification. be done.

Next, in the stroke size conversion section 6,
If it is necessary to change the stroke width (number of pixels) or size of each character according to the code specification, change the required stroke width (number of pixels) or size of each character from among the multiple types of basic strokes stored in memory M in advance. Each image is converted to a predetermined size.
Specifically, as shown in FIG.
1, and stroke size converters 621 to 6219 provided in 19 stages for appropriately converting the size of each stroke according to the decoder output when using, for example, 19 types of basic strokes.

Next, in the stroke font conversion section 7, each stroke constituting the specified character whose size has been appropriately converted is converted into a stroke determined by the typeface. Specifically, this font conversion unit 7
As shown in FIG.
It consists of 19 font converters 71-719 provided on the output side of fonts 1-6219, respectively.

Finally, in the character synthesis unit 8, each stroke that has been subjected to size conversion and font conversion is assembled into the desired character again, and is sent to the output unit 9, which includes an MT, a printer, etc., as character pattern information that has been converted into a font. Sent.

Figure 3 d is the original input character (a in the same figure)
Same stroke size (64x64 pixel configuration)
Figure e shows the output character pattern in Gothic font when the font is converted to Gothic font, and Figure e shows the output character pattern in Gothic font when the size is converted to 1/2 the stroke width (32 x 32 pixel configuration). . In addition, Figure 3 f shows the output character pattern when the font is converted to Mincho font without converting the stroke size of the input characters, and Figure 3 g shows the output character pattern when the font is converted to a 1/2 stroke width. This shows the output character pattern in Mincho font.

Furthermore, Figure 5 shows the 19 types of basic strokes in the Mincho typeface mentioned above, consisting of 7 types of straight line strokes (a in the same figure) and 12 types of curved strokes (b in the same figure). A is the basic stroke, B is a modified stroke with a head and no spring, C is a modified stroke with a head and no spring, D is a modified stroke with a head and a spring. Ho shows deformed strokes without a head and with a splash, respectively.

As mentioned above, in the typeface conversion device according to the present invention,
It decomposes multiple input characters in the original font into strokes according to each pattern, normalizes the component strokes for each input character with basic strokes according to the font to be converted, and stores them in memory. , reads the necessary strokes from the memory M as appropriate by specifying the character code to be converted, performs size conversion and font conversion for each stroke, and then assembles the strokes to create a character pattern converted into a predetermined font. It has the excellent advantage of being able to easily convert characters into fonts by simply designing the basic strokes of multiple types of fonts to be converted in advance.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the basic configuration of an embodiment of the typeface conversion device according to the present invention, FIG. 2 is a block diagram showing the specific configuration of the same embodiment, and FIG.
Figures a to c are diagrams showing various processing patterns of input characters in the same embodiment, Figures d to g are diagrams each showing an example of the output character pattern, and Figure 4 is an example of input characters in the original font. The figures shown in FIGS. 5a and 5b are diagrams showing examples of 19 types of basic strokes. 1... Input section, 2... Thinning processing section, 3... Fulcrum extraction section, 4... Stroke extraction section, 5... Character code specification section, 6... Stroke size conversion section,
7... Font conversion section, 8... Character synthesis section, 9...
...Output section, M...Memory.

Claims (1)

[Scope of Claims] 1. An input unit that reads the input character pattern in the original font in dot units, a processing unit that thins the input character pattern in pixel units, and a processing unit that thins the input character pattern based on the thinned character pattern. A processing unit that calculates the inclination of the segments that make up the character and the address of the fulcrum. Based on the obtained inclination of the segments and the address of the fulcrum, the input character is divided into strokes, and each stroke is processed according to the typeface to be converted. A first process system includes a processing unit that normalizes the normalized stroke by comparing it with multiple types of basic strokes and stores it in the memory; a character code designation section that reads out a character code from the font, a font conversion section that converts each of the read strokes into a font, and a character synthesis section that assembles the font-converted strokes to synthesize a character pattern converted into a predetermined font. A font conversion device configured by a second process system consisting of: 2. The above item 1, characterized in that the character code specifying section has a stroke size specifying function, and includes a stroke size conversion processing section that converts each stroke read from the memory according to the size specification. A typeface conversion device as described in .