KR101218345B1 - Apparatus and method of processing hintng information in the Korean alphabet - Google Patents

Abstract

The present invention relates to a device and a method based on a combination of Hangul phonemes, and more particularly, to improve readability and output quality by converting and outputting a phoneme forming a letter in Hangul according to the size and position of a representative letter. It is about technology to let.
According to the present invention, it is possible to improve readability and output quality even when the size of a letter is reduced by converting the phoneme forming a letter in Korean according to the size and position of the representative letter and sorting the output.

Description

Apparatus and method of processing hintng information in the Korean alphabet}

The present invention relates to a device and a method based on a combination of Hangul phonemes, and more particularly, to improve readability and output quality by converting and outputting a phoneme forming a letter in Hangul according to the size and position of a representative letter. It is about technology to let.

Hinting is a technique for improving output quality at a small size vector font (outline font) or at a low resolution. Hints include global hinting that applies to all font sizes and delta hinting that applies to specific font sizes.

On the other hand, in the case of Hangul, because the English alphabet and the letter system is different, it is not easy to apply the hint to the Hangul using a hinting algorithm used in the English.

Therefore, there is a need for a method of applying hints appropriately for Hangul using a new method.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide an apparatus and a method for using a Hangul alphabet combination that improves readability and output quality by converting and aligning a phoneme forming a letter according to the size and position of a representative letter. There is.

In order to solve the above problems, the present invention, an input unit for receiving a target character that is a character that is the target of the hint processing; A classification table including information on a plurality of groups in which each letter of the Hangul is classified according to the form of the first and neutral and the final type and the presence or absence of the finality and information on representative phonemes of each group; A classification determination unit which determines a group to which the target character belongs by referring to the classification table; A representative element extraction unit for extracting a representative element of a group to which the target character belongs by referring to the classification table; The upper and lower widths of each element forming the target letter correspond to the upper and lower widths of the extracted representative element, and the target letter is placed on the same horizontal line as the reference upper point which is the uppermost point of the extracted representative element. Characterized by providing a Hangul phoneme combination-based hint processing device including a phoneme conversion unit for generating the converted conversion characters.

Preferably, the phoneme conversion unit vertically moves the upper and lower vertices of the phoneme forming the target letter to the horizontal line where the top point of the extracted representative element meets and the horizontal line where the bottom point meets, respectively, and the stem of the phoneme forming the target letter is It may include a moving unit for moving each pixel to remain the same.

Preferably, the phoneme conversion unit, the uppermost point of each phoneme forming the target character is located on the same horizontal line as the reference top point that is the uppermost point of the extracted representative phoneme, the upper and lower widths of each phoneme forming the target letter is extracted It may include a vertical reduction unit for reducing each phoneme of the target character up and down to be equal to the vertical width of the representative element.

Preferably, the phoneme conversion unit, the uppermost point of each phoneme forming the target character is located on the same horizontal line as the reference top point, which is the uppermost point of the extracted representative element, the upper and lower width of each phoneme forming the target character extracted It may include a proportional reduction unit for proportionally reducing each phoneme of the target character to be equal to the top and bottom width of the cow.

Preferably, the apparatus, the overlap determination unit for determining whether the phonemes forming the conversion letters overlap each other; And a pixel shifter to reduce the stem of the phoneme located in the overlapped part when there is an overlapping phoneme.

In addition, the present invention to solve the above problems, (a) receiving a target character that is a character that is the target of the hinting process; (b) The target letter by referring to the classification table containing information on a plurality of groups in which each letter of the Hangul is classified according to the form of the primary, neutral, and final species, and the presence or absence of the species. Determining a group to which it belongs; (c) extracting a representative letter of a group to which the target letter belongs by referring to the classification table; And (d) the upper and lower widths of each element forming the target letter coincide with the upper and lower widths of the extracted representative element, and the uppermost point of each element forming the target letter is placed on the same horizontal line as the reference upper point which is the uppermost point of the extracted representative element. Characterized by the Hangul alphabet combination based on the step of converting the target character to be positioned.

According to the present invention, it is possible to improve readability and output quality even when the size of a letter is reduced by converting the phoneme forming a letter in Korean according to the size and position of the representative letter and sorting the output.

1 is a block diagram illustrating a Hangul alphabet combination-based hint processing apparatus according to the present invention.
2 illustrates a classification table.
3 is a block diagram showing a phoneme conversion unit;
4 is a diagram illustrating conversion of a target character;
5 is a flowchart illustrating a method of processing hinting based on a Hangul alphabet combination according to the present invention.

As the inventive concept allows for various changes and numerous modifications, particular embodiments will be illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "having" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and that one or more other features It should be understood that it does not exclude in advance the possibility of the presence or addition of numbers, steps, actions, components, parts or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1 is a block diagram illustrating an apparatus for processing a hint based on a Hangul alphabet combination according to the present invention.

Referring to FIG. 1, an apparatus for processing Korean characters based on a Hangul alphabet combination includes an input unit 110, a classification table 120, a classification determination unit 130, a representative element extraction unit 140, and a phoneme conversion. The unit 150 may further include at least one of the overlap determination unit 160 and the pixel moving unit 170.

The input unit 110 receives a target character which is a Hangul character for performing a hinting process. The input unit 110 may receive a character set, which is a set of letters composed of a plurality of syllables, or one letter per Hangul syllable unit as a target character.

On the other hand, in the present invention, the letter means a combination of consonants and vowels formed by combining the first and neutral or the first and neutral and the final consonant, and the consonant refers to the consonant or vowel of the Hangul corresponding to the initial, neutral, and final consonants.

The classification table 130 refers to a table including information on a plurality of groups classified according to types of initial, neutral, and final type, and whether or not there is a final type.

When Hangul is outputted, it is the form of initial and neutral according to the typeface. The size and shape of the consonants and vowels entering the primary, neutral, and final changes depending on the type of the species and the presence or absence of the species. For example, the same 'a' consonant consonants are outputted after changing the size or shape of the 'ac' depending on which neutral vowels such as 'ㅏ', 'TT', 'ㅡ', '된다' follow. In addition, the size and shape of the initial consonant 'ㄱ' change depending on whether or not there is a species behind the neutral vowel and the size of the final consonant. Of course, the neutral vowel may also be output in a size or shape that changes depending on the size and shape of the initial consonant and the size and shape of the final consonant.

The classification table 130 has information about a group to which each letter belongs in Korean, and also has information about a letter belonging to each group.

In addition, the classification table 130 has information on representative elements corresponding to the positions of initial, neutral, and final in each group. Representative phoneme means a phoneme that becomes a reference when hinting a target letter. In the classification table 130, each group is a group having members of initial and neutral, or a combination of initial and neutral and final characters, and each group has one representative element at the initial, neutral, and final positions. Of course, a classification group that does not have a finality does not have a representative element corresponding to the finality.

Meanwhile, the classification table 130 may have a different group for each typeface of Hangul. For example, since Myeongjo fonts and archery fonts have different sizes and display forms of Hangul consonants and Hangul vowels, the classification tables in Myungjo fonts may be different from the classification tables in archery fonts.

2 is a diagram illustrating a classification table.

Referring to FIG. 2, the classification table 130 is a table having information on groups classified according to the form of neutrality and the presence or absence of neutrality, and has six groups G1 to G6. It is divided into six groups depending on where the vowels are located, whether the vowels are double vowels, and the presence of the final consonants.

The first group G1 is a group of letters consisting of a consonant consonant G11 and a neutral vowel G12 positioned on the right side of the consonant consonant, and the third group G3 is a lower and right side of the consonant consonant G31 and the consonant consonant. Is a group of letters consisting of neutral vowels (G32) located in, the fifth group (G5) is a letter consisting of a consonant consonant (G51), a neutral vowel (G52) located below the initial consonant (G53), and a final consonant (G53) It can be seen that the group of. Each group has representative elements (x, y, z) in the initial, neutral, and final positions. Of course a group without species does not, of course, have a representative element of that species.

Meanwhile, the classification method of each group in the classification table 130 is not limited to the example of FIG. 2 but may be classified in various ways.

For example, each group of FIG. 2 may be further classified according to the form of the leading consonant (for example, whether the leading consonant is a twin consonant and the upper and lower widths of each leading consonant), or the shape of the neutral consonant and the final consonant. Depending on the type, it may be classified further.

Meanwhile, as described above, each group of the classification table 130 may be classified differently according to Korean fonts.

Returning to Fig. 1, a description will be given.

The classification determining unit 130 analyzes the target character and determines a group to which the target character belongs by referring to the classification table 120. Since the classification table 120 stores information on the letters belonging to each group, the classification determination unit 130 may easily determine the group to which the target letter belongs by searching the classification table 120. As described above, since the classification group of the classification table 120 may be classified differently according to the font, the classification determination unit 130 may determine the font of the target letter to accurately determine the group to which the target letter belongs according to the font. Can be.

The representative element extracting unit 140 searches the group classification table 120 based on the group to which the target character belonged by the classification determination unit 130 belongs, and accordingly the corresponding representative element corresponding to each element forming the target character. Extract. If the target letter is composed of initial and neutral characters, two corresponding representative elements may be extracted. On the other hand, if the target letters are composed of initial, neutral, and final characters, three corresponding representative elements may be extracted: initial response representative elements, neutral response representative elements, and final response representative elements.

The phoneme converting unit 150 matches the upper and lower widths of the respective phonemes forming the target letter with the upper and lower widths of the corresponding representative elements extracted at the same time. Convert the character to be on the same horizontal line. The corresponding representative element is a representative element corresponding to each element constituting the target letter, and the initial element of the target letter corresponds to the initial element corresponding element among the corresponding element elements, and the neutral element of the target letter corresponds to the neutral element representative element among the corresponding element elements. The final phoneme of the target letter corresponds to the neutral counterpart of the corresponding representative element,

3 is a block diagram illustrating a phoneme conversion unit 150.

Referring to FIG. 3, the phoneme conversion unit 150 includes a moving unit 151, a vertical reduction unit 152, a proportional reduction unit 153, and a method selection unit 154.

The moving unit 151 converts the upper and lower widths of the respective letters forming the target letters to be the same as the upper and lower widths of the extracted representative elements in such a manner as to move the pixels on which the respective letters forming the target letters are displayed.

The vertical reduction unit 152 shrinks each element of the target letter up and down so that the upper and lower widths of the respective elements forming the target letter are the same as the upper and lower widths of the corresponding representative elements extracted.

The proportional reduction unit 153 reduces each phoneme of the target letter by the same ratio so that the top and bottom widths of the respective phonemes forming the target letter are the same as the top and bottom widths of the extracted corresponding representative elements.

Meanwhile, the moving unit 151, the vertical reduction unit 152, and the proportional reduction unit 153 are located on the same horizontal line as the reference upper point, which is the uppermost point of the corresponding representative element from which the respective phonemes forming the target letters are extracted. Let's do it.

By the phoneme conversion unit 150, the upper and lower widths of the respective phonemes constituting the target letter coincide with the upper and lower widths of the corresponding representative letters, and the uppermost point of each phoneme constituting the target letters is moved on the same horizontal line as the reference upper point of the corresponding representative letter. , Each phoneme constituting the converted target letter is aligned on the same size and same line as the corresponding representative phoneme.

4 is a diagram illustrating conversion of a target character.

Figure 4 (a) is a diagram illustrating a comparison of any phoneme of the target character with the representative phoneme, Figure 4 (b) is a diagram illustrating a comparison of the target letter and the representative phoneme converted by the phoneme conversion unit. 4 (a) and 4 (b), the phoneme of the target letter is 'vo', and the corresponding representative phoneme is 'ㅁ'.

Referring to FIG. 4 (a), the letter 't' of the target letter is larger than the corresponding letter 'h' corresponding to the letter 'h', and the uppermost point (e_1, e_2) of 't' is the corresponding letter ' It can be seen that it is located above the reference top point p_1 of ㅁ, and the lowest point e_3 of ㅁ is located below the reference bottom point p_2 of the corresponding representative element 'ㅁ'.

On the other hand, referring to Figure 4 (b), the phoneme 'eh' of the converted target letter has the same upper and lower widths as the corresponding representative element 'ㅁ', and the uppermost point and the lowest point ( e_1, e_3) can be seen as being located on the same line as the reference top point and the reference bottom point p_1, p_2 of the corresponding representative element 'ㅁ'.

As described above, there are three ways of converting the letter of the target letter 'Z', which will be briefly explained.

The conversion method by the moving unit 151 is as follows.

First, the moving unit 151 grasps upper and lower vertices e_1 to e_4 of the phonemes forming the target letters. In addition, the moving unit 151 forms a target letter with a horizontal line line1 where the reference top point p_1 of the corresponding representative element ㅁ meets and a horizontal line line2 where the reference bottom point p_2 meets the top of the phoneme. Vertically move the vertex and the bottom vertex (e_1 to e_4). Then, the moving unit 151 moves each pixel for displaying the phoneme of the target letter based on the top and bottom vertices so that the stem of the phoneme forming the target letter remains the same as before the conversion. .

The conversion method by the vertical reduction unit 152 is as follows.

First, the vertical reduction unit 152 grasps the upper and lower vertices e_1 to e_4 of the phonemes forming the target letters. In addition, the vertical reduction unit 152 moves the upper vertex e_1 of the phoneme forming the target letter to the horizontal line line1 where the reference upper point p_1 of the corresponding representative element ㅁ meets. Then, the vertical reduction unit 152 reduces the top and bottom of the letter of the target letter so that the top and bottom width of the letter forming the target letter is the same as the top and bottom width of the corresponding representative letter (k). Of course, the order of vertex movement and reduction may be reversed.

The conversion method by the proportional reduction unit 153 is as follows.

First, the proportional reduction unit 153 grasps the upper and lower vertices e_1 to e_4 of the phonemes forming the target letters. In addition, the proportional reduction unit 153 moves the upper vertex e_1 of the phoneme forming the target letter to the horizontal line line1 where the reference top point p_1 of the corresponding representative element ㅁ meets. The proportional reduction unit 153 then proportionally reduces the phoneme of the target letter so that the top and bottom widths of the phonemes constituting the target letter are the same as the top and bottom width of the corresponding representative letter ㅁ. Of course, the order of vertex movement and reduction may be reversed.

2 will be described again.

The overlap determination unit 160 detects the presence or absence of the overlapping phoneme in the converted character which is the converted target character. Here, superposition refers to a phenomenon in which the interval between consonants and vowels is smaller than a predetermined pixel distance and thus appears to stick to each other. As the font size becomes smaller, the displayed consonants and vowels stick together or appear very close together. When the phonemes overlap, the readability may drop, so it is preferable to process the overlapped phonemes in the phonemes forming the conversion letters.

If it is determined by the overlap determination unit 160 that the phonemes forming the conversion letter overlap, the pixel shifter 170 removes the overlapping phenomenon by moving the pixels of the overlapped phonemes. There are many ways to eliminate overlapping, including shrinking or pixel shifting any of the nested phonemes, proportionally reducing the initial, neutral, and trailing, or reducing the stem size of the overlapping phonemes. This can be used, just remove the overlap so that readability does not fall.

Hereinafter, a method of processing hinting based on the Hangul alphabet combination according to the present invention will be described. The Hangul alphabet combination-based hint processing method according to the present invention performs essentially the same function as the Hangul alphabet combination-based hint processing apparatus according to the present invention, and thus detailed descriptions and overlapping descriptions will be omitted.

5 is a flowchart illustrating a method of processing hinting based on a Hangul alphabet combination according to the present invention.

First, a target letter, which is a Hangul character, to be performed for hinting processing is input (S10). The target letter may be input one by one in syllable units or a set of letters composed of a plurality of syllables.

Then, the classification determination unit 130 refers to the classification table 120 to determine the group to which the target character belongs (S50). As described above, the classification table 120 is a table having information on groups classified according to types of initial, neutral, and final species, and whether or not there is a finality, and information on representative elements of initial, neutral, and final clusters in each group is also included. Also have.

The representative element extraction unit 140 extracts a corresponding representative element corresponding to each element constituting the target letter from the classification table 120 (S30).

The phoneme conversion unit 150 is configured such that the upper and lower widths of the respective phonemes forming the target letter coincide with the upper and lower widths of the corresponding representative letters, and the uppermost point of each phoneme forming the target letter is positioned on the same horizontal line as the reference upper point of the corresponding representative letter. The characters are converted (S40).

Then, the overlap determination unit 160 determines whether there is a phoneme overlapping in the converted target letter (S50).

If there is no overlapping phoneme, the target letter converted by the phoneme conversion unit 150 is finally output.

However, when there are overlapping phonemes, the pixel moving unit 170 removes the overlapping phenomenon of the phonemes by moving the pixels of the overlapping phonemes by a predetermined pixel distance in the opposite direction to the overlapping direction (S60).

The method of the present invention can also be embodied as computer readable code on a computer readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored. Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave (for example, transmission via the Internet) . The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Accordingly, the scope of protection of the present invention should be construed in accordance with the following claims, and all technical ideas within the scope of equivalents and equivalents thereof should be construed as being covered by the scope of the present invention.

110, input 120, classification table
130, classification judgment unit 140, representative place extraction unit
150, phoneme conversion unit 160, superposition determination unit
170, pixel shifter

Claims (10)

An input unit for receiving a target character, which is a Hangul character that is a target of a hinting process;
It contains information on a plurality of groups in which each letter of Hangeul is classified according to the form and type of the first and neutral and the final type, and information on the representative elements corresponding to the first and neutral or the first and neutral and finality for each group. Sorting table;
A classification determination unit which analyzes the target letter and determines a group to which the target letter belongs by referring to the classification table;
A representative element extraction unit for extracting a corresponding representative element corresponding to each element forming the target character by referring to the classification table;
The upper and lower widths of the respective letters forming the target letter coincide with the upper and lower widths of the corresponding representative letters, and the uppermost point of each phoneme forming the target letters is positioned on the same horizontal line as the reference upper point which is the uppermost point of the corresponding representative element. Hangul phoneme combination based hinting processing device comprising a phoneme conversion unit for generating a conversion character by converting the target character. The method of claim 1, wherein the phoneme conversion unit
Each of the upper and lower vertices of each phoneme forming the target letter is vertically moved to the horizontal line where the uppermost point of the corresponding representative element meets and the horizontal line where the lowermost point meets, respectively, so that the stems of the respective phonemes forming the target letter are kept the same. Hangul alphabet combination-based hinting processing apparatus comprising a moving unit for moving a pixel. The method of claim 1, wherein the phoneme conversion unit
The uppermost point of each phoneme constituting the target letter is positioned on the same horizontal line as the reference upper point, which is the uppermost point of the corresponding representative element, and the upper and lower widths of the respective phonemes forming the target letter are the same as the upper and lower widths of the corresponding representative element. A Hangul alphabet combination-based hint processing apparatus including a vertical reduction unit for reducing the respective phonemes forming the target character up and down. The method of claim 1, wherein the phoneme conversion unit
The uppermost point of each phoneme constituting the target letter is positioned on the same horizontal line as the reference upper point, which is the uppermost point of the corresponding representative element, and the upper and lower widths of the respective phonemes forming the target letter are the same as the upper and lower widths of the corresponding representative element. And a proportional reduction unit proportionally reducing each phoneme constituting the target letter. The device of claim 1, wherein the device is
An overlap determination unit that determines whether or not the phonemes forming the converted letters overlap each other; And
If there is an overlapping phoneme, further comprising a pixel moving unit for reducing the stem of the phoneme located in the overlapping portion, Hangul phoneme combination based hint processing apparatus. (a) receiving a target character which is a Korean character to be subjected to a hinting process;
(b) information on a plurality of groups, each letter of the Korean alphabet being classified according to the form and the presence or absence of the initial and neutral and the finality of each letter, and the representative elements corresponding to the initial and neutral or the initial and neutral and finality of each group; Analyzing the target letter by referring to a classification table including information and determining a group to which the target letter belongs;
(c) extracting a corresponding representative element corresponding to each element forming the target character from the group to which the target character belongs by referring to the classification table; And
(d) The upper and lower widths of the respective phonemes forming the target letter coincide with the upper and lower widths of the corresponding representative letter, and the uppermost point of each phoneme forming the target letter is on the same horizontal line as the reference upper point which is the uppermost point of the corresponding representative element. And converting the target character to be positioned to generate a converted character. The method of claim 6, wherein step (d)
(d1) vertically moving an upper vertex and a lower vertex of each phoneme constituting the target letter to a horizontal line where a top point of the corresponding representative element meets and a horizontal line where a bottom point meets; And
and (d2) moving each pixel such that the stem of each phoneme forming the target letter remains the same. The method of claim 6, wherein step (d)
(d1) placing the uppermost point of each phoneme constituting the target letter on the same horizontal line as the reference upper point which is the uppermost point of the corresponding representative element; And
(d2) reducing each phoneme forming the target letter up and down such that the upper and lower widths of the respective phonemes forming the target letter are the same as the upper and lower widths of the corresponding representative element. The method of claim 6, wherein step (d)
(a) placing the uppermost point of each phoneme constituting the target letter on the same horizontal line as the reference upper point which is the uppermost point of the corresponding representative element; And
(a) proportionally reducing each phoneme forming the target letter so that the top and bottom width of each phoneme forming the target letter is equal to the top and bottom width of the corresponding representative letter; . The method of claim 6, wherein the method
(e) determining whether each phoneme constituting the conversion letter overlaps each other; And
and (f) if there are overlapping phonemes, reducing the stem of each phoneme located in the overlapped portion.

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