JP2000330980A - Handwriting-like character output device and its program recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To print a handwriting-like character which represents fine vibrations like a handwriting in brush on the entire outline of the character and also represents a blur like a spread of Chinese ink on paper at the outline part. SOLUTION: A CPU 1 performs the DFT processing of a normal character font, extracts the lowest-order frequency component from the processing result, and adds it to the highest-order frequency component to give vibrations approximating the movement of a brush to the entire outline of a character. Then the CPU 1 performs DFT inverse transformation to restore the outline data of this character to coordinate sequence data, paints out the inside of the outline, and adds a blur to the outline in a color thinner than the painting-out color.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handwritten character output device for outputting handwritten characters such as written with a brush, and a program recording medium therefor.

[0002]

2. Description of the Related Art Conventionally, in a document data processing apparatus such as a word processor or a personal computer, when outputting input document data, a bitmap font expressing a character shape by a set of dots or a character outline is partially used. Each time, an outline (vector) font, which is expressed as a set of reference points and a straight line or Bezier curve connecting them, is read out and output / printed out, but the outline font is rotated and italicized compared to the bitmap font. There is an advantage that deformation such as enlargement / reduction is easy, and the contour is smooth after the deformation.

[0003]

However, even outline fonts are not suitable for changing the thickness of one stroke constituting a character or for changing the basic outline of a font greatly. If required, individual fonts had to be prepared in advance as special fonts. In such a case, there is a limit even if the data is compressed and stored structurally by making the font into parts,
The data capacity was large. Furthermore, an outline font generally has a small data capacity when the contour is smooth, but the data capacity explosively increases in a shape that changes (vibrates) finely. Was not prepared in advance. Accordingly, the present applicant has developed a frequency font generation function that generates a frequency font, which is obtained by expressing the outline of a character by a set of discrete spatial frequency components using a normal character font, and a character font based on the frequency font. By simply adding a deformed font generation function that generates a deformed font that deforms the outline of a character, you can significantly change the basic outline and thickness of characters, add various expressions, etc. while suppressing the increase in data volume (Japanese Patent Application No. 10-221119, title of the invention: character font deformation output device and its program recording medium) have been proposed. The object of the present invention is to develop the technology previously proposed by the present applicant, in addition to expressing fine vibrations as if written with a brush on the entire contour of the character, and blurring the ink as if it smudged on paper. Is to be able to print a handwritten character in which the character is expressed in the outline portion.

[0004]

The means of the present invention are as follows. According to the first aspect of the present invention, in order to deform the outline of a character represented by a set of discrete spatial frequency components, a low-order shape that governs the approximate shape of a character from the set of spatial frequency components is used. A character processing means for extracting a frequency component and adding the low-order frequency component to a high-order frequency component to impart a vibration similar to the movement of a brush to the entire contour of the character, and print-out a handwritten character Conversion means for converting the contour data of the character deformed by the character processing means into coordinate string data, and a filling means for filling the inside of the outline of the character based on the coordinate string data obtained by the conversion means. And determining the color that is lighter than the density of the color that fills the inside of the outline of the character by the brush means as a bleeding color that appears when writing with a writing brush. Based on the sequence data along the contour of the character it is to and a contour processing unit for adding color bleeding said. In addition, a font conversion is performed in which sampling is performed by tracing the contours of characters constituting an existing ordinary character font, and the sampled font is converted into a frequency font which is represented by a set of discrete spatial frequency components by orthogonal transformation. Means, the character processing means generates a deformed font in which the outline of a character is deformed by processing data constituting the frequency font, and the conversion means performs orthogonal inverse conversion of the deformed font to obtain coordinate string data. May be obtained. Further, the contour processing means determines a color lighter than the density of the color that fills the inside of the outline of the character as a bleeding color that appears when writing with a brush, and in advance, corresponds to the type of printing paper set. A blurred color having a predetermined density may be determined.

According to the first aspect of the present invention, in order to deform a contour of a character represented by a set of discrete spatial frequency components, the approximate shape of the character is controlled from the set of spatial frequency components. A low-order frequency component (for example, the lowest-order frequency component) is extracted, and this low-order frequency component is added to a high-order frequency component (for example, the highest-order frequency component), thereby forming the entire character outline. Vibration similar to the movement of a brush is applied, and when printing a handwritten character, the contour data of the deformed character is converted into coordinate string data. In addition to filling in the interior, a color lighter than the density of the filling color is determined as a bleeding color that appears when writing with a brush, and the bleeding color is added along the contour of the character based on the coordinate sequence data. Therefore, in addition to expressing a fine vibration as if written with a brush on the entire contour of the character, it is possible to print a handwritten character in which a blur such as ink smeared on paper is expressed in the outline.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1A is a block diagram showing the entire configuration of the document data processing device. The CPU 1 is a central processing unit that controls the overall operation of the document data processing device according to various programs. The storage device 2 has a storage medium 3 in which an operating system, various application programs, data files, character font data and the like are stored in advance, and a drive system thereof. The storage medium 3 is fixedly provided or removably mountable, and includes a magnetic / optical storage medium such as a floppy disk, a hard disk, an optical disk, and a RAM card, and a semiconductor memory. The programs and data in the storage medium 3 are loaded into the RAM 4 under the control of the CPU 1 as needed. Further, the CPU 1 receives programs and data transmitted from other devices via a communication line or the like and stores them in the storage medium 3 or stored in a storage medium provided in other devices. Existing programs and data can be used via a communication line or the like. An input device 5, a display device 6, and a printing device 7, which are input / output peripheral devices, are connected to the CPU 1 via a bus line. The CPU 1 controls these operations according to an input / output program.

The input device 5 includes a keyboard, a pointing device such as a mouse, and an image reader for inputting character string data and the like and various commands.
Here, when the document data is input from the input device 5 at the time of document creation, the document data is displayed on the text screen of the display device 6 and the determined character string determined by the kana-kanji conversion is stored in the RAM 4. Note that the display device 6 is a liquid crystal display device, a CRT display device, a plasma display device, or the like that performs multicolor display, and the printing device 7 is a full-color printer device, which is a non-impact printer or an impact printer such as thermal transfer or inkjet. Output document data in color.

Here, when printing a document, if it is instructed to print a document with handwritten characters such as written with a brush, the CPU 1 uses an orthogonal transform, that is, a discrete Fourier transform (DFT) expansion system. Therefore, existing character fonts (bitmap fonts and outline fonts)
Is converted into a data structure represented by a set of discrete spatial frequency components. Here, each part constituting a character can be represented by a continuous function having a cycle of one round of the contour (closed curve).
The frequency that oscillates is used as the fundamental frequency of the DFT, and is converted into a data structure of an aggregate in which the fundamental frequency and a frequency that is an integral multiple of the fundamental frequency are combined.

FIG. 1B shows a main configuration of the RAM 4, and various memory areas are allocated to the RAM 4. The character string storage unit 4-1 temporarily stores a character string to be subjected to the DFT processing. The CPU 1 reads out each character code constituting the character string from the head thereof and reads the character code from the normal font storage unit in the storage device 2. 2-1 is searched, and the corresponding character font is fetched. Normal font storage 2
-1 stores a bitmap font or an outline font in association with various characters, and the CPU 1 performs DFT processing on the character font read out from the normal font storage unit 2-1 for each part. The work part 4-2 is used. Frequency conversion work part 4-2
Is a work area for temporarily storing the conversion result for each part,
The CPU 1 is a DFT-processed frequency conversion work unit 4-2.
The contour data of one part is deformed and stored in the deformed font storage unit 4-3. Deformed font storage unit 4-3
The CPU 1 temporarily stores a deformed font in which a vibration approximating the movement of a brush is applied to the entire outline of a character. The CPU 1 generates the original coordinate sequence data by performing an inverse Fourier transform on the outline data constituting the deformed font. After that, based on the coordinate sequence data, a rasterizing process for filling the inside of the outline is performed, and the image is developed in the print buffer 4-4.
At this time, the CPU 1 adds a color lighter than the fill color to the outline of the character so as to give a blur as if written with a brush.

FIG. 2 is a diagram conceptually showing a state in which an existing font is converted into a set of frequency components for each part by DFT conversion. One part of the font to be processed (in this case, an outline font) is drawn, and the outline of this bitmap is plotted. Here, the number of points for plotting one part is determined depending on how finely the conversion is desired. In the case of the discrete Fourier transform, the number is selected from a multiplier of “2”, for example, “512”. The contour of the part is plotted and the point P0,
XY coordinate values are fetched for each of P1, P2,. Note that the transform result by DFT is reversible unless the calculation accuracy is strictly determined, and can be returned to the original coordinate value by Fourier transform. In the case of a normal outline font, the number of parts is defined and attributes such as a reference point coordinate value, a straight line, and a Bezier curve are defined for each part (each image). In the case of the frequency font in the embodiment, the coordinates of the outline font and the description part of the attribute are a table of the number of spatial frequency components. That is, the DF for each part is associated with the character code, the number of parts, and the part number.
The T processing result is a numerical table describing a DC component, a fundamental frequency component, and a frequency component obtained by multiplying the DC component by an integer. Here, the processing result by the DFT is expressed as a complex number, and its size is discretely obtained for a real axis part and an imaginary axis part on a complex number plane.
"1" indicates the value of the real axis portion in the X-axis direction on the complex plane, and "Xim" indicates the value of the imaginary axis portion. Similarly, “Yrl” and “Yim” are the value of the real axis part and the value of the imaginary axis part in the Y-axis direction. In the figure, “F0” is a DC component, and the center part coordinates of the contour are described in the real part thereof. Note that a value of “zero” is always described in the imaginary axis part of “F0”. “F1” is a fundamental frequency component representing a frequency that vibrates once when making a round of the contour of the part, and the size and direction of the part are governed by this value. “F2” is a frequency component (secondary high-frequency component) that vibrates twice when making one round of the contour of the part, and the shape of the part is governed by this value, and this value increases in a part that is greatly bent. The following "F3",
"F4" are third- and fourth-order high frequency components.

FIG. 3 shows a state in which the character "sum" is decomposed for each part and subjected to FFT processing, and the vertically long parts forming the "nogi bias" and the "fresh" are formed. A table is shown in which values of a real part and values of an imaginary part obtained by performing DFT processing for each part are discretely distributed on a frequency axis by paying attention to a largely bent part. In this frequency distribution, the characteristics of the vertically long parts are exhibited at the fundamental frequency F1, and the characteristics of the parts which are greatly bent are exhibited at the next frequency F2 in addition to the fundamental frequency F1. FIG. 4 shows specific numerical values of a real axis portion, an imaginary axis portion, a real axis portion, and an imaginary axis portion in the X-axis direction obtained by performing the DFT processing on the character "sum". FIG. 8 is a diagram showing a correspondence relationship between each part constituting the “sum” and frequency data of each part. Here, as shown by "1" to "7" in the figure, this character "Sum" is composed of seven parts, and a set of spatial frequency components corresponding thereto is data of seven parts.

By using such a frequency font, the outline of a character can be freely changed. FIG. 5A shows a data structure in which all high frequency components of the spatial frequency components obtained by the DFT processing are cut by a digital filter (low-pass filter) to make all the frequency components after F3 zero.
A data structure in a case where a specific high-frequency component, for example, F56 is added and its value is set to a constant value to perform deformation by finely oscillating the contour line is shown. FIG. 5B shows the deformed state, in which the approximate shape of the character is dominated by the low-frequency components of F0, F1, and F2, and its outline is finely vibrated by the high-frequency component of F56. ,
The number and intensity of the vibrations can be arbitrarily controlled. To obtain a large vibration, the value may be increased, and to obtain a fine vibration, the order of the high frequency component may be increased.

Next, the operation of the document data processing apparatus will be described with reference to FIGS.
This will be described with reference to the flowchart shown in FIG. Here, a program for realizing each function described in these flowcharts is stored in the storage medium 3 in the form of a program code readable by the CPU 1, and the CPU 1 performs an operation according to the program code. Execute sequentially. This is the same in other embodiments described later. FIG. 6 is a flowchart showing the entire operation when printing a character string. That is, the normal character font (outline font) is changed to 1
In addition to converting to a frequency font for each part, a transformed font is generated by processing the data that constitutes the frequency font, and the transformed font is returned to the original coordinate data by inverse Fourier transform. 3 is a flowchart showing an operation of performing character expansion and printing out. First, after the line pointer is initialized (step A1), the character string storage unit 4-1 is accessed with this pointer value to read the character string code for one line (step A2). Next, after the digit pointer is initialized (step A3), the 1 designated by the digit pointer
The character codes for the digits are read (step A4). Then, one-character printing processing described later is performed (step A5),
When printing of one character is completed, the value of the digit pointer is updated and the next character is designated (step A6). Thereafter, the process returns to step A5 until the end of printing of one line is detected in step A7, and printing of one character is repeated. When printing of one line is completed, the value of the line pointer is updated (step A8), and the process returns to step A2 until the end of all lines is detected in step A9, and the above operation is repeated.

FIG. 7 is a flowchart detailing step A5 (one-character printing process) in FIG. First, the character 1
An image pointer is initialized to designate an image (step B1). Then, data of one stroke indicated by the stroke pointer is read from the normal font storage unit 3-1 (step B2), and DFT-transformed (step B3).
That is, the number of parts constituting the character font to be processed is obtained, the first part is developed and drawn, the sampling is performed along the contour of the part, and the coordinate value of each sampled point is DFT-transformed. In this case, D
The FT calculation is performed separately for the X coordinate component and the Y coordinate component.
The value of the direction real axis part, the value of the imaginary axis part, and the value of the imaginary axis part of the Y direction real axis part are obtained. When the DFT conversion is performed in this manner, a modified font in which the outline of the character is deformed is generated by manipulating the parameters with respect to the conversion result (step B4). In the example of FIG. 5 described above, a constant value is added to a low-frequency component as a specific high-frequency component to give a constant vibration to the outline of the character. However, the lowest-order frequency component F1
Is added to the highest-order frequency component Fmax, whereby a vibration as if written with a brush can be added to the outline of the character.

FIG. 8 shows a modification process in this case, in which only the lowest-order frequency component F1 is extracted from a set of spatial frequency components obtained by the DFT process by a digital filter, and the lowest-order frequency component F1 is extracted. Component F
1 is added to the highest-order frequency component Fmax. That is,
The X-axis real number axis portion F1Xr of the lowest-order frequency component F1 is multiplied by a coefficient P, and the result is expressed as X of the highest-order frequency component Fmax.
Add to the direction real number axis portion FmaxXr (step C
1). Further, the imaginary axis part F1Xi in the X direction of the lowest order frequency component F1 is multiplied by the coefficient P, and the result is added to the imaginary axis part FmaxXi in the X direction of the highest order frequency component Fmax (step C2). Similarly, in the Y direction, the real axis part F1Yr in the Y direction of the lowest order frequency component F1 is multiplied by the coefficient P, and the result is added to the real axis part FmaxYr in the Y direction of the highest order frequency component Fmax (step C3). Also, the imaginary axis portion F1Yr in the Y direction of the lowest-order frequency component F1
Is multiplied by a coefficient P, and the result is referred to as the highest-order frequency component Fmax.
To the imaginary axis portion FmaxYi in the Y direction (step C4). FIG. 10 shows a modification in this case. Here, FIG. 10A illustrates an output shape when the frequency font obtained by performing DFT conversion of the character “ten” is an original font, and only the lowest-order frequency component F1 is obtained from this original font. Is extracted, the font is transformed into a rounded font as shown in FIG. When the lowest-order frequency component F1 is added to the highest-order frequency component Fmax, as shown in FIG. 10C, the font is transformed into a font having a shape in which fine vibrations similar to the movement of a brush are added to the entire contour. You. The magnitude of the vibration in this case can be increased by the coefficient P.

When the deformation process for giving vibration to the entire contour of one part is completed, the process proceeds to step B5 in FIG. 7 to perform an inverse Fourier transform on the deformed font.
In this case, if the transformed font for one part is inversely transformed by DFT, the coordinates return to the coordinates at the time of plotting, so that an outline font using this as a short vector is obtained.
Then, a rasterizing process for filling the inside of the outline is performed on the print buffer 4-4 (step B6). FIG.
1 (A) and (B) show the situation in this case.
(A) shows the outline coordinate sequence obtained by the inverse DFT, and (B) shows the result of the filling after the rasterizing process. Next, the process proceeds to step B7, where contour drawing processing is performed. The drawing process in this case is to add a black blur that appears when writing with a brush between the rasterized color (for example, black) used for filling the inside of the outline and the ground color (for example, white) of the paper. With reference to the contour coordinate sequence subjected to the inverse DFT, a straight line (for example, a straight line having a width of 4 dots) that is lighter than the rasterized color and wider than one dot width is drawn along the outside of the outline. . FIG. 9 is a flowchart showing the drawing process in this case. First, a color one step lower than the rasterized color is determined as the contour drawing color based on the rasterized color (step D1). Note that a correspondence table between the rasterized color and the contour drawing color may be prepared, and the contour drawing color may be determined with reference to this correspondence table. In this case, if the rasterized color is black,
Dark gray is determined as the drawing color. A wide straight line connects the coordinate points with the drawing color determined in this way (step D2). As a result, a wide blur pattern is obtained outside the contour along the contour (see FIG. 11C), and the blur pattern is added to the outside of the rasterized contour and developed in the print buffer 4-4. As a result, the result is as shown in FIG. In this way 1
When the printing process for the parts is completed, the next image is designated (step B8), it is checked whether all the images are completed (step B9), and the process returns to step B2 until all the images are completed, and the above-described printing process is repeated for each image. .

As described above, in the first embodiment, in order to deform the outline of a character represented by a set of discrete spatial frequency components, an approximate character of the character is extracted from the set of spatial frequency components. By extracting the lowest-order frequency component F1 that governs the shape and adding the lowest-order frequency component F1 to the highest-order frequency component Fmax, a vibration approximating the movement of a brush is given to the entire contour of the character, and handwriting is performed. When printing a wind character, the contour data of the deformed character is converted into coordinate sequence data, and the inside of the character outline is filled based on this coordinate sequence data, and a color lighter than the density of this fill color Is determined as the bleeding color that appears when writing with a brush, and this bleeding color is added along the outline of the character, so that the entire character has vibration and bleeding as if writing with a brush Rukoto it is, it becomes possible to obtain a natural handwriting.

(Second Embodiment) Hereinafter, a second embodiment of the present invention will be described with reference to FIG. In the above-described first embodiment, the contour drawing color (bleed color) is fixed regardless of the type of paper to be printed. In the second embodiment, the blur color is determined according to the type of paper. It is something to do. FIG. 12 shows a flowchart in this case, and shows a contour drawing process corresponding to the flowchart in FIG. 9 of the first embodiment. First, as in the first embodiment described above, a color lighter than rasterization is used as the outline drawing color. In this case, this drawing color is set as a default value (step E).
1). Next, the type of paper set in the printer is read (step E2). Here, the type of the paper is arbitrarily selected and designated by the user in advance, and the type of the paper is determined (steps E3 to E5), and a drawing color corresponding to the type is determined (steps E6 to E8). In this case, the drawing color is determined by referring to a correspondence table in which the paper type and the drawing color are associated. For the paper type not set in the correspondence table, the above-described default value is used as the drawing color. It is determined. Then, similarly to the above-described first embodiment, a wide straight line connects the coordinate points with the determined drawing color (step E9).

As described above, in the second embodiment, the drawing color is determined according to the type of paper.
A stable bleeding effect can be obtained. That is, for example, in an ink-jet printer, even if the same color is used, the color development changes according to the type of paper, such as whether or not the paper is high-quality paper. Without being affected, a sufficient bleeding effect can be obtained.

In the above embodiments, the lowest-order frequency component F1 is added to the highest-order frequency component Fmax. However, the frequency component F2 may be added to the highest-order frequency component Fmax. Further, it is needless to say that the vibration is not limited to the highest-order frequency component Fmax as long as a vibration close to the movement of the brush can be applied. Although the outline drawing process is performed after the inside of the outline is painted, the outline drawing process may be performed before the painting. Furthermore, in the contour drawing process, the contour is drawn with a 4-dot width, but the dot width is arbitrary, and moreover, if the dot width and the like are locally changed, such as the brush-down portion, without changing the dot width uniformly, A natural bleeding effect can be obtained. Further, for example, if a contour having a width of 3 dots is drawn and then the contour drawing of the same color is superimposed by shifting the dot position, shading can be added to a blurred portion, and a more realistic blurring effect can be obtained. It becomes possible. In addition, in the above-described embodiment, the frequency font is obtained by performing the DFT conversion on the existing character font. However, the frequency font may be fixedly stored in the character font memory.

[0021]

According to the present invention, in addition to expressing a fine vibration as if written with a brush on the entire contour of a character, a handwritten character expressing a blur such as ink bleeding on a paper at the outline portion can be obtained. Since printing can be performed, natural handwritten characters can be obtained.

[Brief description of the drawings]

FIG. 1A is a block diagram showing an overall configuration of a document data processing device, and FIG. 1B is a diagram showing a main part of a RAM 4.

FIG. 2 is a diagram illustrating a state in which a frequency font is generated by sampling a normal character font for each part and performing DFT processing.

[Fig. 3] Decomposes a normal character font into parts for each DF
FIG. 7 is a diagram illustrating a state of T processing and a frequency distribution diagram in which values of a real part and an imaginary part obtained by performing DFT processing are discretely distributed on a frequency axis.

FIG. 4 is a diagram showing specific numerical values forming a frequency font and showing a correspondence relationship between which part corresponds to which data.

5A is a diagram for explaining a data structure of a frequency font, and FIG. 5B is a diagram showing an output state of a character represented by the frequency font having such a data structure.

FIG. 6 is a flowchart illustrating an overall operation when printing a character string.

FIG. 7 is a flowchart for explaining step A5 (one-character printing process) in FIG. 6 in detail.

8 is a flowchart for explaining step B4 (contour deformation processing by parameter operation) in FIG. 7 in detail.

FIG. 9 is a flowchart for explaining step B7 (contour drawing processing) in FIG. 7 in detail.

FIG. 10 is a view for specifically explaining contour deformation processing by parameter operation.

11A is a diagram showing a contour coordinate sequence obtained by inverse DFT, FIG. 11B is a diagram showing a result after rasterization processing, and FIG. 11C is a contour drawing in a color lighter than the rasterized color. The figure which showed the result after doing.

FIG. 12 is a flowchart illustrating a contour drawing process according to the second embodiment.

[Explanation of symbols]

 Reference Signs List 1 CPU 2 storage device 3 storage medium 4 RAM 4-1 character string storage unit 4-2 frequency conversion work unit 4-3 modified font storage unit 4-4 print buffer 5 input device 6 display device 7 printing device F1 lowest order frequency component Fmax Highest order frequency component

Claims (4)

[Claims] In order to deform the outline of a character represented by a set of discrete spatial frequency components, a low-order frequency component that governs the general shape of a character is extracted from the set of spatial frequency components. A character processing means for extracting and adding this low-order frequency component to a high-order frequency component to impart a vibration approximating the movement of a brush to the entire contour of the character. Conversion means for converting the contour data of the character deformed by the character processing means into coordinate sequence data; filling means for filling the inside of the outline of the character based on the coordinate sequence data obtained by the conversion means; A color that is lighter than the density of the color that fills the inside of the outline of the character by the filling means is determined as a blurred color that appears when writing with a brush, and the coordinate string data obtained by the conversion means is determined. Handwritten character output apparatus characterized by comprising a contour processing means for adding said bleeding color along the outline of a character based on. 2. The method according to claim 1, wherein the sampling is performed by tracing the outline of a character constituting an existing ordinary character font, and the sampled character is converted into a frequency font obtained by expressing the outline of the character by a set of discrete spatial frequency components by orthogonal transformation. The character processing means generates a deformed font in which the outline of a character is deformed by processing data constituting the frequency font, and the conversion means performs orthogonal inverse conversion of the deformed font. 2. The handwritten character output device according to claim 1, wherein coordinate string data is obtained. 3. The method according to claim 1, wherein the contour processing means determines a color lighter than a color that fills the outline of the character as a blurred color that appears when writing with a brush. 2. The handwritten character output device according to claim 1, wherein a blurred color having a predetermined density is determined. 4. A recording medium having a program code which is read by a computer, the recording medium comprising a set of spatial frequency components for deforming a contour of a character represented by a set of discrete spatial frequency components. A low-order frequency component that governs the general shape of the character is extracted, and the vibration that approximates the movement of the brush is given to the entire outline of the character by adding the low-order frequency component to the high-order frequency component. A function of converting the contour data of the deformed character into coordinate string data when printing out a handwritten character, a function of filling the outline of the character based on the coordinate string data, Determined as a blurred color that appears when writing with a brush a color lighter than the density of the color that fills the outline inside, and based on the coordinate sequence data, the blurred color along the outline of the character Recording medium having a program code for realizing a function of adding a program.