JPH04274550A - Method for preparing handwritten character data - Google Patents

Abstract

PURPOSE:To use the font of handwritten characters as a character font for the output. CONSTITUTION:In a character data processor 2, a character data delineating means 3 performs a process which increases data points around each data point indicated by the coordinate data of characters outputted from a handwritten character input device 1 and prepares the delineating data of the character part only from the coordinate data of the characters by analyzing the width of the characters based on the processed results and a character data preparing means 4 prepares the character data of the same font as that of handwritten characters by using a geometric reducing process for exchanging the delineated data with the data size of the dot font of outputs for a screen and printer. Therefore, the font of handwritten characters can be used as the character font for output and document can be outputted to the screen and printer with the font of handwritten characters.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handwritten character data creation method for creating character data in the same font as handwritten characters from handwritten character input data.

0002

2. Description of the Related Art Conventionally, there have been known document processing devices that input handwritten characters, recognize the characters, and display the characters on a screen or print them out. In such a document processing apparatus, the font of output characters is determined by an application program for performing document processing, and characters in a predetermined font are output.

0003

[Problem to be Solved by the Invention] However, in such conventional document processing devices, the font of output characters is determined by the application program as described above.
You cannot use any font other than that one, and although you can select and use a font from several preset fonts, you cannot, for example, output a document in your own handwritten font. Therefore, in the past, there was no method of using handwritten character data itself as a character font, that is, there was no method of creating handwritten characters themselves as a character font for output to a screen or printer.

The present invention was made to solve the above-mentioned problems, and its purpose is to provide a method for creating handwritten character data so that the font of handwritten characters can be used as an output character font. shall be.

[0005]

[Means for Solving the Problems] A handwritten character data creation method according to the present invention performs a process of increasing data points around each data point indicated by character coordinate data output from a handwritten character input device 1, A character data rendering means 3 analyzes the width of the character based on this processing result and creates rendering data of only the character part from the coordinate data of the character, and the rendering data outputted from this character data rendering means 3 is output to the screen and to the printer. The character data processing device 2 is equipped with a character data creation means 4 for creating character data in the same font as handwritten characters by using geometric reduction processing in order to exchange the data size to a dot font data size, and creates handwritten character data. do.

[0006]

[Operation] In the character data processing device 2, the character data rendering means 3 performs processing to increase data points around each data point indicated by the character coordinate data output from the handwritten character input device 1, and based on the processing result, The character data creation means 4 analyzes the width of the character and creates rendering data of only the character part from the coordinate data of the character, and the character data creation means 4 uses a geometric ratio to exchange the aforementioned rendering data to the data size of the dot font for screen output and printer output. Create character data in the same font as handwritten characters using reduction processing.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the configuration of a handwritten character data creation method according to an embodiment of the present invention. In FIG. 1, 1 is a handwritten character input device that converts handwritten character input data from the handwriting of the handwritten character into coordinate point data and outputs character coordinate data; 2 is a handwritten character input device that converts input data of handwritten characters from handwriting to coordinate point data; This is a character data processing device that creates character data in the same font as handwritten characters. The character data processing device 2 performs processing to increase data points around each data point indicated by the character coordinate data output from the handwritten character input device 1, and analyzes the width of the character based on the processing result to determine the width of the character. A character data drawing means 3 that creates drawing data of only the character part from the coordinate data, and a geometric ratio is used to exchange the drawing data output from the character data drawing means 3 into the data size of a dot font for screen output and printer output. A character data creation means 4 is provided for creating character data in the same font as handwritten characters using reduction processing.

FIG. 2 is a block diagram showing the processing steps in the character data processing device 2. As shown in FIG. In FIG. 2, 21
22 is a preprocessing step in the character data drawing step 21; 23 is a character width analysis step in the character data drawing step 21; 24 is carried out by the character data creating means 4. This is the character data creation stage. In the pre-processing stage 22,
For all the points of the character coordinate data for one character output from the handwritten character input device 1, for example, eight points shifted by one point in the vertical or horizontal direction around that point, and each of these points. It has data point increasing means for increasing a total of 20 points, excluding points shifted by 2 points in both the vertical and horizontal axes around the center, and 12 points shifted by 2 points in the vertical or horizontal directions. . In the character width analysis stage 23, for example, the leftmost point and the rightmost point in the horizontal axis direction, and the furthest point in the vertical axis direction are Detects the bottom point, analyzes the width of the character data, and creates rendering data for only the character part from the character coordinate data. Character data creation stage 24
Next, the character coordinate data for one character processed in the character width analysis step 23 is reduced at a ratio that reduces the width of the character data to the width of the dot font character for various screen outputs and printer output. Create a character font.

FIG. 3 is a diagram showing the processing results in the character data rendering step 21 using the character "a" as an example. In FIG. 3, a character "
"A" is expressed. By the processing in the pre-processing stage 22,
The coordinate data 33 of the character "A" is increased to the data point in the inner part surrounded by the line 34 in the figure. The leftmost point 35, rightmost point 36, and bottommost point 37 of the character coordinate data analyzed in the character width analysis step 23 are shown. Further, the maximum width 38 of the coordinate data of the character analyzed from the leftmost point 35 and the rightmost point 36 is shown. Also, the leftmost point 3
5. A rendering area 32 of analyzed character data is shown from the rightmost point 36 and the lowest point 37.

FIG. 4 is a diagram for explaining the operation of the data point increasing means in the preprocessing stage 22 of the character data rendering stage 21. In FIG. 4, there is one data point 42 unprocessed by the data point increasing means on the coordinate 41 in the coordinate data of the character, and after the coordinate data has been processed by the data point increasing means, there are 20 points around the original data point 42. 43 is incremented.

FIG. 5 shows the results of the processing in the character data creation step 24, taking the character "a" as an example. In FIG. 5, character data 52 created by completing all processes of the handwritten character data creation method of this embodiment is expressed on a character font area 51 held by the application program. Further, the horizontal width size 53 of the character font held by the application program is shown.

FIG. 6 is a flowchart showing the operation of the data point increasing means used in the preprocessing step 22 of the character data rendering step 21. In FIG. 6, xr(i
), yr(i) indicate character coordinate data which is input data to the character data rendering stage 21. i=1, 2,...
, n (n is an integer and the number of character coordinate data). x
t(j) and yt(j) indicate character coordinate data after processing by the data point increasing means. j=1, 2, . . . , m (m is an integer and is the number of character coordinate data after processing by the data point increasing means). In step S1, i=1, j=
1, b=-2 in step S2, step S
3, set a=-2. In step S4 |a|
It is determined whether =|b|=2, and if NO, the calculation in step S5 is performed. In step S6, j=j+1, and in step S7, a=a+1. Step S8
Then, it is determined whether a>2, and if YES, b=b+1 is set in step S9. In step S10, b>
2, and if YES, step S1
1 and i=i+1. In step S12, it is determined whether i>n, and if YES, in step S13, m
=j-1, and then ends. Further, if YES in step S4, the process moves to step S7. NO in step S8
When this happens, the process returns to step S4. If NO in step S10, the process returns to step S3. If NO in step S12, the process returns to step S2.

FIG. 7 is a flowchart of analysis of the leftmost point, rightmost point, and bottommost point of character coordinate data in the character width analysis step 23 of the character data rendering step 21. In FIG. 7, xL is the leftmost point, xR is the rightmost point, y
B indicates the lowest end point. Furthermore, the x coordinate of the rightmost point in the character coordinate area is xRmax. Also, xt(
j), yt(j), and m are the same as those explained in FIG. In step S14, xL=xRmax, xR=0,
Set yB=0, and set j=1 in step S15. In step S16, it is determined whether xL>xt(j), and if YES, xL=xt(j) is set in step S17. In step S18, it is determined whether xR<xt(j), and if YES, xR=xt in step S19.
(j). In step S20, it is determined whether yB>yt(j), and if YES, yB=yt(j) is set in step S21. In step S22, j=j+
1, and in step S23 it is determined whether j>m, and if YES, this process ends. Further, if NO in step S16, the process moves to step S18. If NO in step S18, the process moves to step S20. Step S
If the answer in step S20 is NO, the process moves to step S22. Step S2
If NO in 3, the process returns to step S16.

FIG. 8 is a flowchart of the character part rendering coordinate data analysis process used in the character width analysis stage 23 of the character data rendering stage 21. In Figure 8,
xs(j) and ys(j) indicate character portion drawing coordinate data. j=1, 2,..., m. Also, xt(j)
, yt(j), and m are the same as those described in FIG. Also, x
L and yB are the same as those explained in FIG. In step S24, j=1 is set, in step S25 the calculation shown in the figure is performed, and in step S26, j=j+1 is set. In step S27, it is determined whether j>m, and if YES, the process ends, but if NO, the process returns to step S25.

FIG. 9 is a flowchart of the reduction process to a character font on the application program in the character data creation stage 24. In FIG. 9, xf(j)
, yf(j) indicates the coordinate data of the created handwritten character. j=1, 2, . . . , m, where m is an integer. The reduction ratio from characters in the character part drawing coordinate data to characters on the application program is expressed as Xf/Xw. Xf is the width of the character font on the application program, and Xw is the width of the character of the character portion drawing coordinate data. xs(j), ys(j), and m are the same as those described in FIG. In step S28, j=1, in step S29 the calculations shown in the figure are performed, and in step S30, j=1.
Let it be j+1. In step S31, it is determined whether j>m, and if YES, the process ends, and if NO, the process returns to step S29.

In the handwritten character data creation method configured as described above, a method for processing the handwritten character "a" will be discussed as an example. In the preprocessing stage (22 in Figure 2) of the character data rendering stage (21 in Figure 2), the coordinate data of the character "A" (33 in Figure 3) is processed by the data point increasing means (Figure 6). using one data point (4 in Figure 4).
2), by increasing the surrounding points by 20 points (43 in Figure 4), the coordinate data of the increased character (34 in Figure 3)
Process it into

Next, in the character width analysis stage (23 in FIG. 2), the leftmost, rightmost, and bottom points are analyzed (FIG. 7) from the increased character coordinate data (34 in FIG. 3) to find the most Find the x values xL and xR of the leftmost point (35 in Figure 3) and the rightmost point (36 in Figure 3), respectively, and
7) Find yB, which is the y value. By performing the process (Fig. 8) of subtracting xL and yB obtained above from the character coordinate data (34 in Fig. 3), the character data part area ( Figure 3
32). Further, from xL and xR determined above, the width of the character drawing portion, that is, the handwritten character width Xw (38 in FIG. 3) is determined by processing Xw=|XL-XR|.

Next, in the character data creation stage (24 in FIG. 2), the values of the width Xf of the character font (53 in FIG. 5) and the width Xw of the character drawing area (FIG. 9) held by the application program are used. The reduction ratio is set to Xf/Xw. Using the above reduction ratio, the drawing area of character data (Figure 3
When the coordinate data of the character 32) (34 in FIG. 3) is reduced and mapped to the character font area (51 in FIG. 5) (FIG. 9), handwritten character data (52 in FIG. 5) is created.

As explained above, in the above embodiment,
The data point increasing means in the preprocessing stage of the character data rendering stage covers discontinuous points and missing data points in each line of handwriting in handwritten input, and makes each line smooth. In addition, in the character width drawing stage of the character data drawing stage, the means for drawing the character data part from the handwritten character data draws only the character data part, and uses the geometric reduction means in the next character data creation stage to draw the character font. By creating , each character created will have a uniform size without being affected by the size of the character when inputting handwritten characters.

[0020]

As described above, according to the present invention, data points are added around each data point indicated by the coordinate data of the character output from the handwritten character input device, and the result of this processing is used to increase the number of data points of the character. A character data rendering means that analyzes the width and creates rendering data of only the character part from character coordinate data, and exchanges the rendering data output from this character data rendering means into dot font data size for screen output and printer output. In order to create a document, the character data processing device is provided with a character data creation means for creating character data in the same font as the handwritten character using geometric reduction processing to create handwritten character data. The conventional problem of only being able to use predetermined character fonts, which are restricted by the application program that executes document processing, has been resolved, and the font of handwritten characters can now be used as the output character font. This provides the advantage of being able to output a document on a screen or printer using the same font.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a handwritten character data creation method according to an embodiment of the present invention.

FIG. 2 is a block diagram showing processing steps in the character data processing device in FIG. 1;

FIG. 3 is a diagram showing processing results at the character data rendering stage in FIG. 2, taking the character "a" as an example.

FIG. 4 is a diagram for explaining the operation of a data point increasing means in a preprocessing stage of the character data rendering stage in FIG. 2;

FIG. 5 is a diagram showing processing results at the character data creation stage in FIG. 2, taking the character "a" as an example.

6 is a flowchart showing the operation of data point increasing means used in the preprocessing stage of the character data rendering stage in FIG. 2;

7 is a flowchart of analysis of the leftmost point, rightmost point, and bottommost point of character coordinate data in the character width analysis stage of the character data rendering stage in FIG. 2; FIG.

FIG. 8 is a flowchart of analysis processing of character portion rendering coordinate data used in the character width analysis stage of the character data rendering stage in FIG. 2;

FIG. 9 is a flowchart of reduction processing to a character font on the application program at the character data creation stage in FIG. 2;

[Explanation of symbols]

1 Handwritten character input device 2 Character data processing device 3 Character data rendering means 4 Character data creation means

Claims (1)

[Claims] 1. A handwritten character input device that converts handwritten character input data from the handwriting of the handwritten character into coordinate point data and outputs character coordinate data, and a handwritten character input device that converts input data of handwritten characters from the handwriting of the handwritten character to coordinate point data and outputs character coordinate data; A handwritten character data creation method that creates handwritten character data using a character data processing device that creates character data in the same font as the character data processing device that creates character data in the same font. A character data rendering means that increases data points around a point, analyzes the width of the character based on the processing result, and creates rendering data of only the character part from the coordinate data of the character, and outputs from this character data rendering means. the character data processing device; A method for creating handwritten character data, characterized in that the handwritten character data is created.