KR102300444B1 - Document editing device to check whether the font applied to the document is a supported font and operating method thereof - Google Patents

Abstract

Disclosed are a document editing apparatus capable of confirming whether a font applied to a document is a supported font, and an operating method thereof. According to the present invention, a document editing apparatus capable of confirming whether a font applied to a document is a supported font, and an operating method thereof, when a document is opened through a document creation program, reads data about the document and includes characters included in the document Check the fonts applied to the fonts, and if it is confirmed that the fonts applied to the characters included in the document are not supported by the document creation program, a font confirmation message indicating that the fonts are not supported and the font When the replaced font information is displayed on the screen, information on the font applied on the document can be clearly provided to the user.

Description

A document editing device capable of checking whether a font applied to a document is a supported font and an operation method thereof

The present invention relates to a document editing apparatus capable of confirming whether a font applied to a document is a supported font, and an operating method thereof.

Recently, as computers, smart phones, or tablet PCs are widely used, various types of electronic document-related programs have been released that allow users to read, write, and edit electronic documents using such electronic devices.

These electronic document-related programs include a word processor supporting basic document creation and editing, a spreadsheet supporting data input, arithmetic operations, and data management, and presentation programs supporting a presenter's presentation.

In relation to this, a document creator may transmit a document created through these electronic document-related programs to another user, and the document receiver may download the received document and open it through the electronic document-related program on the document receiver's terminal.

However, even with the same electronic document-related program, the types of fonts supported differ depending on the version, and the document creator sometimes downloads a font file produced by a specific font producer from the web and applies it to the document created by himself/herself. Even if the same document is opened between document recipients through the same electronic document-related program, the types of fonts supported to be applied to the document may be different.

If the document creator writes a document by applying the font 'A' and sends it to the document recipient, but the electronic document-related program installed on the document recipient's terminal does not support the font 'A', the document recipient's In the document opened on the terminal, an alternative font similar to the font 'A' is applied to change the letter spacing and shape, and as a result, the overall layout of the document will be changed.

However, even if the layout of the document is changed due to the use of an unsupported font, the electronic document-related program does not display any information about the layout change on the screen, so that the document recipient can It is not known whether it was written in the same format or if it was deformed due to the use of an unsupported font.

In addition, even if the document recipient can infer that the layout of the document has been altered due to the use of an unsupported font, information such as the unsupported font applied to the document and the type of the currently substituted font, etc. There is a problem that it is difficult to come up with a countermeasure.

If, when the document is opened by the document recipient, if the font applied to the document is an unsupported font, a message indicating that the font is not supported and information on the existing font and replacement font can be displayed on the screen , even if the layout of the document is changed between the document creator and the document recipient, it can be clearly understood that this is due to the use of unsupported fonts, and further measures such as downloading font data for unsupported fonts can be prepared. It will be useful.

Therefore, it is necessary to study a document editing technique that can check whether a font applied to a document is a supported font.

According to the present invention, a document editing apparatus capable of confirming whether a font applied to a document is a supported font, and an operating method thereof, when a document is opened through a document creation program, reads data about the document and includes characters included in the document Check the fonts applied to the fonts, and if it is confirmed that the fonts applied to the characters included in the document are not supported by the document creation program, a font confirmation message indicating that the fonts are not supported and the font In this case, information on the font applied to the document is clearly provided to the user by displaying the replaced font information on the screen.

A document editing apparatus capable of confirming whether a font applied to a document is a supported font according to an embodiment of the present invention includes a font identifier for each of a plurality of supported fonts supported by a document creation program and each of the plurality of supported fonts Font data for - the font data is data used to apply the font format corresponding to the characters included in the document when the document is loaded When a first document is opened through a program, a font identifier check unit for reading data about the first document and checking a font identifier for a font applied to characters included in the first document, the first document When a first font identifier is identified as a font identifier for a font applied to characters included in and a font indicating that the font applied to the first document is a font that is not supported by the document creation program when it is confirmed that the font identifier matching the first font identifier is not stored in the supported font storage unit and a message display unit for generating a confirmation message and displaying it on the screen.

In addition, in the method of operating a document editing apparatus capable of confirming whether a font applied to a document is a supported font according to an embodiment of the present invention, a font identifier for each of a plurality of supported fonts supported by a document creation program and the plurality of fonts are supported. Font data for each of the supported fonts of the font data is data used to apply the font format corresponding to the characters included in the document when the document is loaded maintaining a copy, when a first document is opened through the document creation program, reading data about the first document and checking a font identifier for a font applied to characters included in the first document , when a first font identifier is identified as a font identifier for a font applied to characters included in the first document, it is checked whether a font identifier matching the first font identifier is stored in the support font storage unit and if it is confirmed that the font identifier matching the first font identifier is not stored in the supported font storage unit, indicating that the font applied to the first document is a font not supported by the document creation program and generating a font confirmation message to display on the screen.

According to the present invention, a document editing apparatus capable of confirming whether a font applied to a document is a supported font, and an operating method thereof, when a document is opened through a document creation program, reads data about the document and includes characters included in the document Check the fonts applied to the fonts, and if it is confirmed that the fonts applied to the characters included in the document are not supported by the document creation program, a font confirmation message indicating that the fonts are not supported and the font When the replaced font information is displayed on the screen, information on the font applied on the document can be clearly provided to the user.

1 is a diagram illustrating a structure of a document editing apparatus capable of confirming whether a font applied to a document is a supported font according to an embodiment of the present invention.
2 is a diagram for explaining a document editing apparatus capable of confirming whether a font applied to a document is a supported font according to an embodiment of the present invention.
3 is a flowchart illustrating a method of operating a document editing apparatus capable of confirming whether a font applied to a document is a supported font according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. These descriptions are not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. While describing each drawing, like reference numerals are used for similar components, and unless otherwise defined, all terms used in this specification, including technical or scientific terms, refer to those of ordinary skill in the art to which the present invention belongs. It has the same meaning as is commonly understood by those who have it.

In this document, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated. In addition, in various embodiments of the present invention, each of the components, functional blocks or means may be composed of one or more sub-components, and the electrical, electronic, and mechanical functions performed by each component are electronic. A circuit, an integrated circuit, an ASIC (Application Specific Integrated Circuit), etc. may be implemented with various well-known devices or mechanical elements, and may be implemented separately or two or more may be integrated into one.

On the other hand, the blocks in the accompanying block diagram or steps in the flowchart are computer program instructions that are loaded in a processor or memory of equipment capable of data processing, such as a general-purpose computer, a special-purpose computer, a portable notebook computer, and a network computer, and perform specified functions. can be interpreted as meaning Since these computer program instructions may be stored in a memory provided in a computer device or in a memory readable by a computer, the functions described in the blocks of the block diagrams or the steps of the flowcharts are produced as articles of manufacture containing instruction means for performing the same. could be In addition, each block or each step may represent a module, segment, or portion of code comprising one or more executable instructions for executing the specified logical function(s). It should also be noted that, in some alternative embodiments, it is also possible for the functions recited in blocks or steps to be executed out of the prescribed order. For example, two blocks or steps shown one after another may be performed substantially simultaneously or in the reverse order, and in some cases, some blocks or steps may be omitted.

1 is a diagram illustrating a structure of a document editing apparatus capable of confirming whether a font applied to a document is a supported font according to an embodiment of the present invention.

Referring to FIG. 1 , a document editing apparatus 110 capable of confirming whether a font applied to a document according to an embodiment of the present invention is a supported font includes a supported font storage unit 111 and a font identifier verification unit 112 . , a support font confirmation unit 113 and a message display unit 114 .

In the support font storage unit 111, a font identifier for each of a plurality of support fonts supported by a document creation program and font data for each of the plurality of support fonts are stored in correspondence with each other.

Here, the font data means data used to apply a font format corresponding to characters included in the document when the document is loaded.

In relation to this, data may be stored in the support font storage unit 111 as shown in Table 1 below.

Multiple supported font types font identifier font data gothic identifier 1 font data 1 Myeongjo style identifier 2 font data 2 rolling body identifier 3 font data 3 ... ... ...

When the first document is opened through the document creation program, the font identifier check unit 112 reads data on the first document and obtains a font identifier for a font applied to characters included in the first document. Check it.

When the first font identifier is confirmed as the font identifier for the font applied to the characters included in the first document, the support font check unit 113 matches the first font identifier in the support font storage unit 111 . Check if the font identifier is stored.

When it is confirmed that the message display unit 114 does not store the font identifier matching the first font identifier in the support font storage unit 111, the font applied to the first document is supported by the document creation program. A font confirmation message indicating that the font is not available is generated and displayed on the screen.

For example, it is assumed that a font called 'Nanum Gothic' is applied to the first document, and a font identifier for 'Nanum Gothic' is not stored in the support font storage unit 111 .

In this case, when the first document is opened through the document creation program, the font identifier check unit 112 reads data on the first document and determines the font applied to the characters included in the first document. It is possible to check the font identifier for 'Nanum Gothic' as the font identifier, and the support font check unit 113 does not store a font identifier that matches the font identifier for 'Nanum Gothic' in the support font storage unit 111 . that can be checked

In this way, if it is confirmed by the support font checking unit 113 that a font identifier matching the font identifier for 'Nanum Gothic' is not stored in the support font storage unit 111, the message display unit 114 is displayed in the first A font confirmation message indicating that 'Nanum Gothic', which is a font applied to a document, is a font that is not supported by the document creation program may be generated and displayed on the screen.

In this case, according to an embodiment of the present invention, the document editing apparatus 110 may further include a replacement font selection unit 115 and a font replacement unit 116 .

After the font confirmation message is displayed on the screen, the replacement font selection unit 115 receives a font replacement command for characters included in the first document from the user, the font data for the plurality of supported fonts Any one of the font data is selected as the replacement font data.

When the replacement font data is selected, the font replacement unit 116 reconstructs the first document by applying a font format according to the replacement font data to characters included in the first document.

At this time, according to an embodiment of the present invention, the message display unit 114 is included in the first document together with a font confirmation message indicating that the font applied to the first document is a font that is not supported by the document creation program. A message indicating that the selected characters are changed to a font according to the replacement font data may be additionally generated and displayed on the screen.

In this case, according to an embodiment of the present invention, the alternative font selection unit 115 may include a similarity database 117 , a Euclidean distance calculation unit 118 , and an alternative font selection processing unit 119 .

In the similarity database 117, a font identifier for each of a plurality of fonts previously designated as applicable to a character and a characteristic vector designated in advance for each of the plurality of fonts based on a predetermined similarity between each font are stored in correspondence with each other has been

For example, information may be stored in the similarity database 117 as shown in Table 2 below.

Multiple font types font identifier characteristic vector gothic identifier 1 (0, 1, 2, 3) Myeongjo style identifier 2 (5, 6, 7, 8) rolling body identifier 3 (9, 10, 11, 12) Sharing Gothic identifier 4 (13, 14, 15, 16) ... ... ...

In Table 2, the feature vector is a vector value arbitrarily determined by the developer, and after the developer examines the features of each of the plurality of fonts in advance, the more similar the fonts among the fonts, the smaller the Euclidean Distance is calculated. As much as possible, the characteristic vector may be assigned to each font. That is, the feature vector may be a measure for distinguishing the similarity between the respective fonts.

After the font confirmation message is displayed on the screen, the Euclidean distance calculating unit 118 receives a font replacement command for characters included in the first document from the user, referring to the similarity database 117 to the first A first characteristic vector stored corresponding to a font identifier is checked, and a Euclidean distance between the first characteristic vector and a characteristic vector corresponding to each of the font identifiers for the plurality of supported fonts is calculated.

Here, the Euclidean distance refers to a distance between two vectors and may be calculated according to Equation 1 below.

In Equation 1, D denotes a Euclidean distance, and p _i and q _i denote i-th components included in the two feature vectors. As the Euclidean distance between two feature vectors is small, the two vectors can be regarded as similar vectors, and as the Euclidean distance between two feature vectors increases, the two vectors can be regarded as dissimilar vectors.

The alternative font selection processing unit 119 selects, as the alternative font identifier for the first font identifier, a font identifier for which the Euclidean distance to the first characteristic vector is calculated as the smallest among the font identifiers for the plurality of supported fonts; Among the font data for the plurality of supported fonts stored in the support font storage unit 111 , the font data stored corresponding to the replacement font identifier is selected as the replacement font data.

For example, as in the above example, it is assumed that a font called 'Nanum Gothic' is applied to the first document, and font data corresponding to 'Nanum Gothic' does not exist in the support font storage 111 .

First, after the font confirmation message is displayed on the screen, the Euclidean distance calculating unit 118 receives a font replacement command for characters included in the first document from the user, the similarity database 117 as shown in Table 2 above. ), the characteristic vector '(13, 14, 15, 16)' stored in correspondence with 'identifier 4', which is the font identifier for 'Nanum Gothic', can be identified.

Then, the Euclidean distance calculating unit 118 calculates the characteristic vector '(13, 14, 15, 16)' and the plurality of support fonts stored in the support font storage unit 111 as shown in Table 1 above. The Euclidean distance between the feature vectors corresponding to each font identifier can be calculated.

The alternative font selection processing unit 119 sets the font identifier for which the Euclidean distance with the characteristic vector '(13, 14, 15, 16)' is calculated as the minimum among the font identifiers for the plurality of supported fonts to 'Nanum Gothic'. It can be selected as an alternative font identifier for 'Identifier 4', which is a font identifier for .

If it is determined that 'identifier 2' is selected as the replacement font identifier, the replacement font selection processing unit 119 is the replacement font among the font data for the plurality of supported fonts stored in the support font storage unit 111 . 'Font data 2' stored in correspondence with the identifier 'Identifier 2' may be selected as the replacement font data.

In this way, when 'font data 2' among the font data for the plurality of supported fonts is selected as the replacement font data by the replacement font selection unit 115, the font replacement unit 116 includes the font data included in the first document. The first document may be reconstructed by applying 'Myeongjo font', which is a font format according to 'font data 2', to the characters.

At this time, according to an embodiment of the present invention, the replacement font selection unit 115 includes the re-calculation processing unit 120 , the change candidate font identifier selection unit 121 , the candidate font display unit 122 , and the change target font data selection unit ( 123) may be further included.

After the re-computation processing unit 120 is reconstructed in the first document, about the characters included in the first document from the user When the change command of the replacement font is received, the first characteristic vector stored in correspondence with the first font identifier is reconfirmed with reference to the similarity database 117, and the first characteristic vector and the plurality of supported fonts are assigned to the font. Recompute the Euclidean distance between feature vectors corresponding to each of the font identifiers.

The change candidate font identifier selection unit 121 selects at least one candidate font identifier in which the Euclidean distance to the first characteristic vector is calculated within a predetermined reference distance among the font identifiers for the plurality of supported fonts. 1 Select as a change candidate font identifier for the font identifier.

When the at least one candidate font identifier is selected as the change candidate font identifier, the candidate font display unit 122 displays information on a font name for each of the at least one candidate font identifier on the screen.

When the change target font data selection unit 123 receives a selection command for a second font identifier among the at least one candidate font identifier from the user, the plurality of supported fonts stored in the support font storage unit 111 are selected. Font data stored in correspondence with the second font identifier among the font data for , is selected as the change target font data.

At this time, when the selection of the change subject font data is completed, the font replacement unit 116 applies a font format according to the change subject font data to the characters included in the first document, thereby rewriting the first document. can be reconstructed.

In relation to this, according to the example described above, by applying 'Myeongjo font', which is a font format according to 'font data 2', on the first document, after the first document is reconstructed, it is included in the first document from the user for the characters When the command to change the replacement font is received, the re-computation processing unit 120 refers to the similarity database 117 as shown in Table 2 and stores the characteristic stored in correspondence to 'identifier 4', which is the font identifier for 'Nanum Gothic'. The vector '(13, 14, 15, 16)' is reconfirmed, and the characteristic vector '(13, 14, 15, 16)' and the plurality of The Euclidean distance between the feature vectors corresponding to each of the font identifiers for the supported fonts may be recalculated.

In addition, the change candidate font identifier selection unit 121 calculates at least the Euclidean distance from the feature vector '(13, 14, 15, 16)' among the font identifiers for the plurality of supported fonts within a preset reference distance. One candidate font identifier may be selected as a change candidate font identifier for 'Identifier 4', which is a font identifier for 'Nanum Gothic'.

In this regard, if the at least one candidate font identifier is 'identifier 2' and 'identifier 3', the candidate font display unit 122 displays the font names 'Myeongjoche' and 'identifier 3' respectively. 'Rolling body' can be displayed on the screen.

At this time, when a selection command for 'identifier 3', which is a font identifier corresponding to 'Gulimche' among 'Myeongjoche' and 'Gulimche', is received from the user, the change target font data selection unit 123 supports the font storage unit 111 ), 'font data 3', which is font data stored corresponding to 'identifier 3', among the font data for the plurality of supported fonts stored in ) may be selected as the change target font data.

In this way, when 'font data 3' among the font data for the plurality of supported fonts is selected as the change target font data by the replacement font selection unit 115, the font replacement unit 116 is included in the first document By applying 'Gulimche', which is a font format according to 'font data 3', which is the change target font data, to the changed characters, the first document can be reconstructed again.

Through this, when the user applies an alternative font called 'Myeongjoche' to the first document, but wants to change to another font, by selecting any one of the at least one candidate font, the font of the first document is ' You can change it back to another alternative font, such as 'Dallim'.

According to an embodiment of the present invention, the alternative font selection unit 115 includes a character region extraction unit 124 , a font change unit 125 , a matrix generation unit 126 , an operation matrix generation unit 127 , and a character region check It may further include a unit 128 and a detailed replacement font data selection unit 129 .

After the first document is reconstructed, the text area extraction unit 124 When a detailed font adjustment command for a first character among the characters included in the first document is received from the user, a rectangular region of a preset size surrounding the first character is generated, and the rectangular region is converted into the first character extract into the area.

The font change unit 125 supports the plurality of fonts of the first character existing in the first character area based on the font data for the plurality of supported fonts stored in the supported font storage unit 111 . By changing to a font corresponding to each of the fonts, replacement text areas corresponding to each of the plurality of supported fonts (the size of the replacement text areas are the same as the size of the first text area) are generated.

The matrix generator 126 divides the first character region and the replacement character region into nxn partial rectangular regions each consisting of n horizontal and n vertical regions, and then, for each of the nxn partial rectangular regions, the When a part of the first character is included in each of the nxn partial rectangular regions, a code of 1 is assigned, and when a part of the first character is not included, a code of 0 is assigned, so that the first character region and an nxn matrix for each of the replacement character regions.

The operation matrix generator 127 calculates a Hadamard product of an nxn matrix for each of the replacement character regions with an nxn matrix for the first character region, thereby generating the replacement character regions. Create an nxn operation matrix corresponding to each.

Here, the Hadamard product means an operation of multiplying each component in a matrix or vector of the same size. When there are two matrices '[abc]' and '[xyz]', A matrix can be expressed as '[ax by cz]'.

The text area check unit 128 counts the number of component values of 1 included in an nxn operation matrix corresponding to each of the replacement text areas, and the component value of 1 among the replacement text areas is the maximum counted. After selecting a first replacement character area corresponding to an nxn operation matrix, a font identifier for a first supported font corresponding to the first replacement character area among font identifiers for the plurality of supported fonts is checked.

The detailed replacement font data selection unit 129 selects the font data stored in correspondence to the font identifier for the first supported font among the font data for the plurality of supported fonts stored in the supported font storage unit 111 as the second font. Select as detailed replacement font data for 1 character.

At this time, when the selection of the detailed replacement font data for the first character is completed, the font replacement unit 116 is configured according to the detailed replacement font data for the first character for the first character included in the first document. By applying the font formatting, it is possible to reconstruct the first document again.

For example, as in the example described above, after the first document is reconstructed by applying 'Myeongjo font', which is a font format according to 'font data 2', on the first document, the characters included in the first document from the user Among them, when a detailed font adjustment command for a character called 'A' is received, the character region extracting unit 124 as shown by a blue line at reference numeral 210 of FIG. 2 surrounds the character called 'A'. By creating a rectangular area of a predetermined size, the rectangular area may be extracted as the text area 210 .

The font change unit 125 is configured to indicate that 'a' existing in the character area 210 is based on the font data for the plurality of supported fonts stored in the supported font storage unit 111 as shown in Table 1 above. By changing a font of a character to a font corresponding to each of the plurality of support fonts, it is possible to generate substitute character areas corresponding to each of the plurality of support fonts.

Thereafter, assuming that n is '4', the matrix generator 126 generates '4' x '4' of the character region 210 and the replacement character regions, each of '4' horizontally and '4' vertically. It can be divided into four partial rectangular regions. In addition, the matrix generating unit 126 is a part of the letter 'A' in each of the '4' x '4' partial rectangular regions for each of the '4' x '4' partial rectangular regions. '4' x ' for each of the character area 210 and the replacement character areas by assigning a code of 1 if the A matrix of 4' can be created.

2, after the matrix generator 126 divides the text area 210 into '4' x '4' partial rectangular areas, each of the '4' x '4' partial rectangular areas A figure is shown for explaining a process of generating a matrix 230 of '4' x '4' for the character area 210 by assigning a code of 1 or 0 to .

The matrix generator 126 divides the text area 210 into '4' x '4' partial rectangular areas as shown by reference numeral 220, and then adds the '4' x '4' partial rectangular areas to each of the If a part of the character called 'A' is included, a code of 1 is assigned, and if a part of the character called 'A' is not included, a code of 0 is assigned. A matrix 230 of '4' x '4' may be generated.

In this way, the matrix generator 126 generates a matrix 230 of '4' x '4' for the character region 210 and then '4' x '4' for each of the replacement character regions. You can create a matrix of

The operation matrix generator 127 calculates a Hadamard product of a matrix of '4' x '4' for each of the replacement character regions and a matrix of '4' x '4' for the character region 210 . By doing so, it is possible to generate an operation matrix of '4' x '4' corresponding to each of the replacement character regions.

In addition, the character region check unit 128 may count the number of component values of 1 included in the operation matrix of '4' x '4' corresponding to each of the replacement character regions.

If the replacement character area corresponding to the operation matrix of '4' x '4' in which the component value of 1 among the replacement character areas is maximally counted, the ' When the alternative text area 1' is selected, the text area check unit 128 determines the corresponding 'replacement text area 1' among the font identifiers for the plurality of supported fonts in the support font storage unit 111 as shown in Table 1 above. You can check 'Font Identifier 3', which is the font identifier for 'Gulimche'.

Then, the detailed alternative font data selection unit 129 corresponds to 'font identifier 3' for 'Gulimche' among the font data for the plurality of supported fonts stored in the support font storage unit 111 as shown in Table 1 above. 'Font data 3', which has been saved and stored, can be selected as detailed replacement font data for the character 'A'.

When the selection of detailed replacement font data for the character 'A' is completed, the font replacement unit 116 corresponds to the character 'A' included in the first document with a 'Gullim type' according to 'font data 3'. ', it is possible to reconstruct the first document again.

That is, the document editing apparatus 110 according to the present invention selects a specific character from among the characters included in the first document to which the replacement font is applied and receives a font detailed adjustment command from the user, the most similar character according to the characteristics of the character A font format having a font may support changing the font format of the character.

3 is a flowchart illustrating a method of operating a document editing apparatus capable of confirming whether a font applied to a document is a supported font according to an embodiment of the present invention.

In step S310, a font identifier for each of a plurality of supported fonts supported by the document creation program and font data for each of the plurality of supported fonts (the font data includes characters included in the document when the document is loaded) data used to apply a font format corresponding to ) maintains a support font storage unit in which stored fonts are stored in correspondence with each other.

In step S320, when the first document is opened through the document creation program, data on the first document is read and font identifiers for fonts applied to characters included in the first document are checked.

In step S330, when a first font identifier is identified as a font identifier for a font applied to characters included in the first document, a font identifier matching the first font identifier is stored in the support font storage unit check that it is

In step S340, if it is determined that the font identifier matching the first font identifier is not stored in the supported font storage unit, the font applied to the first document is a font that is not supported by the document creation program. Generates a font confirmation message indicating that it is and displays it on the screen.

At this time, according to an embodiment of the present invention, in the method of operating the document editing apparatus, after the font confirmation message is displayed on the screen, when a font replacement command for characters included in the first document is received from the user, , selecting any one of the font data for the plurality of supported fonts as the replacement font data, and when the replacement font data is selected, the replacement font data is added to the replacement font data for characters included in the first document. The method may further include reconstructing the first document by applying a font format according to the method.

In this case, according to an embodiment of the present invention, the step of selecting one of the font data as the replacement font data includes a font identifier for each of a plurality of fonts previously designated as applicable to a character, and a predetermined similarity between each font. maintaining a similarity database in which predetermined characteristic vectors for each of the plurality of fonts are stored in correspondence with each other based on When a font replacement command for characters is received, a first characteristic vector stored in correspondence to the first font identifier is identified with reference to the similarity database, and information about the first characteristic vector and the plurality of supported fonts is obtained. calculating a Euclidean distance between feature vectors corresponding to each of the font identifiers, and assigning a font identifier in which the Euclidean distance to the first feature vector among the font identifiers for the plurality of supported fonts is calculated as a minimum to the first font identifier selecting as the replacement font identifier for the font, and selecting, as the replacement font data, the font data stored corresponding to the replacement font identifier among the font data for the plurality of supported fonts stored in the support font storage unit; may include

In addition, according to an embodiment of the present invention, the method of operating the document editing apparatus includes: after the first document is reconstructed, about the characters included in the first document from the user When the change command of the replacement font is received, the first characteristic vector stored in correspondence with the first font identifier is reconfirmed with reference to the similarity database, and fonts for the first characteristic vector and the plurality of supported fonts are received. re-calculating the Euclidean distance between the feature vectors corresponding to each of the identifiers; at least one candidate font identifier in which the Euclidean distance from the first feature vector among the font identifiers for the plurality of supported fonts is calculated within a preset reference distance selecting as the change candidate font identifier for the first font identifier; if the at least one candidate font identifier is selected as the change candidate font identifier, information on the font name for each of the at least one candidate font identifier Displaying on a screen When a command for selecting a second font identifier from among the at least one candidate font identifier is received from the user, among the font data for the plurality of supported fonts stored in the supported font storage unit, the selecting the font data stored corresponding to the second font identifier as the change target font data, and when the selection of the change target font data is completed, the characters included in the first document are added to the change target font data The method may further include reconstructing the first document by applying a font format according to the font format.

In addition, according to an embodiment of the present invention, in the method of operating the document editing apparatus, after the first document is reconstructed, a detailed font adjustment command for a first character among characters included in the first document from the user When this is received, extracting the rectangular area as a first text area by creating a rectangular area of a predetermined size surrounding the first character, the plurality of supported fonts stored in the support font storage unit Substitute character areas corresponding to each of the plurality of supported fonts by changing the font of the first character existing in the first character area to a font corresponding to each of the plurality of supported fonts based on the font data for generating (the size of the replacement text areas is the same as the size of the first text area); After dividing into , if a part of the first character is included in each of the nxn partial rectangular regions, a code of 1 is assigned to each of the nxn partial rectangular regions, and the part of the first character generating an nxn matrix for each of the first character region and the replacement character regions by assigning a code of 0 if not included; for an nxn matrix for each of the replacement character regions, the generating an nxn operation matrix corresponding to each of the replacement character areas by calculating a Hadamard product with an nxn matrix for one character area; Count the number of component values of 1, respectively, and select a first replacement character area corresponding to an nxn operation matrix in which the component value of 1 is maximally counted among the replacement character areas, and then a font for the plurality of supported fonts Checking a font identifier for a first supported font corresponding to the first replacement character area among the identifiers. selecting, as detailed replacement font data for the first character, font data stored in correspondence with the font identifier for the first supported font from among the font data for the plurality of supported fonts stored in the book; When the selection of detailed replacement font data for a character is completed, the first document is rewritten by applying a font format according to the detailed replacement font data for the first character to the first character included in the first document. It may further include the step of reconfiguring.

In the above, a method of operating a document editing apparatus capable of confirming whether a font applied to a document is a supported font according to an embodiment of the present invention has been described with reference to FIG. 3 . Here, in the method of operating a document editing apparatus capable of confirming whether a font applied to a document is a supported font according to an embodiment of the present invention, the font applied to the document described with reference to FIGS. 1 and 2 is supported. Since it may correspond to the configuration of the operation of the document editing apparatus 110 capable of identifying recognition, a more detailed description thereof will be omitted.

The method of operating a document editing apparatus capable of confirming whether a font applied to a document is a supported font according to an embodiment of the present invention may be implemented as a computer program stored in a storage medium for execution through combination with a computer.

In addition, the method of operating a document editing apparatus capable of confirming whether a font applied to a document is a supported font according to an embodiment of the present invention is implemented in the form of a computer program command for execution through combination with a computer and is computer readable may be recorded on the medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the present invention, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like.

As described above, the present invention has been described with specific matters such as specific components and limited embodiments and drawings, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims to be described later, but also all those with equivalent or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

110: A document editing device that can check whether the font applied to the document is a supported font
111: support font storage unit 112: font identifier verification unit
113: support font confirmation unit 114: message display unit
115: replacement font selection unit 116: font replacement unit
117: similarity database 118: Euclidean distance calculator
119: alternative font selection processing unit 120: re-operation processing unit
121: change candidate font identifier selection unit 122: candidate font display unit
123: change target font data selection unit 124: character area extraction unit
125: font changer 126: matrix generator
127: arithmetic matrix generation unit 128: character area check unit
129: detailed replacement font data selection unit

Claims (12)

A font identifier for each of a plurality of supported fonts supported by the document creation program and font data for each of the plurality of supported fonts - The font data is a font corresponding to characters included in the document when the document is loaded data used to apply the format - a support font storage unit in which is stored in correspondence with each other;
a font identifier check unit that reads data on the first document and checks a font identifier for a font applied to characters included in the first document when a first document is opened through the document creation program;
When a first font identifier is identified as a font identifier for a font applied to characters included in the first document, it is checked whether a font identifier matching the first font identifier is stored in the support font storage unit Support font verification unit;
When it is confirmed that the font identifier matching the first font identifier is not stored in the supported font storage unit, a font check indicating that the font applied to the first document is a font not supported by the document creation program a message display unit for generating a message and displaying it on the screen;
After the font confirmation message is displayed on the screen, when a font replacement command for the characters included in the first document is received from the user, any one of the font data of the plurality of supported fonts is replaced with the font data. Alternative font selection unit to select as data; and
When the replacement font data is selected, a font replacement unit reconstructs the first document by applying a font format according to the replacement font data to the characters included in the first document
including,
The alternative font selection unit
After the first document is reconstructed through the font replacement unit, when a detailed font adjustment command for a first character among characters included in the first document is received from the user, a preset size surrounding the first character a character region extracting unit that extracts the rectangular region as a first character region by generating a rectangular region of ;
Based on the font data for the plurality of support fonts stored in the support font storage unit, the font of the first character existing in the first text area is changed to a font corresponding to each of the plurality of support fonts a font changing unit generating replacement text areas corresponding to each of the plurality of supported fonts, the size of the replacement text areas being the same as the size of the first text area;
After dividing the first text area and the replacement text area into nxn partial rectangular areas each comprising n horizontally and n vertically, each of the nxn partial rectangular areas for each of the nxn partial rectangular areas By assigning a code of 1 if a part of the first character is included in the interior of a matrix generator for generating an n-by-n matrix for ;
An nxn operation matrix corresponding to each of the replacement character regions by calculating a Hadamard product with an nxn matrix for the first character region for an nxn matrix for each of the replacement character regions an arithmetic matrix generator for generating
Each of the number of component values of 1 included in an nxn operation matrix corresponding to each of the replacement character areas is counted, and a nxnth operation matrix in which the component value of 1 among the replacement character areas is maximally counted a text area checking unit for selecting a first replacement text area and checking a font identifier for a first supported font corresponding to the first replacement text area among the font identifiers for the plurality of supported fonts; and
Details of selecting, as the detailed replacement font data for the first character, the font data stored corresponding to the font identifier for the first supported font among the font data for the plurality of supported fonts stored in the support font storage unit Alternative font data selection section
includes,
the font replacement
When selection of detailed replacement font data for the first character is completed through the detailed replacement font data selection unit, a font according to the detailed replacement font data for the first character for the first character included in the first document A document editing apparatus capable of confirming whether a font applied to a document reconstructing the first document is a supported font by applying a format. delete According to claim 1,
The alternative font selection unit
a similarity database in which a font identifier for each of a plurality of fonts designated as applicable to a character in advance, and a feature vector designated in advance for each of the plurality of fonts based on a predetermined degree of similarity between the fonts are stored in correspondence with each other;
After the font confirmation message is displayed on the screen through the message display unit, when a font replacement command for the characters included in the first document is received from the user, the font identifier corresponds to the first font identifier with reference to the similarity database a Euclidean distance calculator configured to check a stored first feature vector and calculate a Euclidean distance between the first feature vector and a feature vector corresponding to each of the font identifiers for the plurality of supported fonts; and
Among the font identifiers for the plurality of supported fonts, a font identifier for which the Euclidean distance to the first characteristic vector is calculated with the minimum is selected as an alternate font identifier for the first font identifier, and is stored in the supported font storage unit. A replacement font selection processing unit for selecting, as the replacement font data, font data stored corresponding to the replacement font identifier from among the font data for the plurality of supported fonts.
A document editing device that can check whether the font applied to the document containing the . 4. The method of claim 3,
The alternative font selection unit
After the first document is reconstructed through the font replacement unit, when a command to change a replacement font for characters included in the first document is received from the user, the first font identifier is referred to by referring to the similarity database. a re-operation processing unit for reconfirming the stored first characteristic vector and re-calculating the Euclidean distance between the first characteristic vector and the characteristic vector corresponding to each of the font identifiers for the plurality of support fonts;
Among the font identifiers for the plurality of supported fonts, at least one candidate font identifier in which the Euclidean distance to the first characteristic vector is calculated within a predetermined reference distance is used as a change candidate font identifier for the first font identifier. a change candidate font identifier selection unit to select;
a candidate font display unit for displaying information on a font name for each of the at least one candidate font identifier on a screen when the at least one candidate font identifier is selected as the change candidate font identifier; and
When a command for selecting a second font identifier from among the at least one candidate font identifier is received from the user, it corresponds to the second font identifier among the font data for the plurality of supported fonts stored in the supported font storage unit Change target font data selection unit that selects the stored font data as change target font data
further comprising,
the font replacement
When the selection of the change subject font data is completed through the change subject font data selection unit, the first document is reconstructed by applying a font format according to the change subject font data to the characters included in the first document. A document editing device that can check whether the font applied to the document is a supported font. delete A font identifier for each of a plurality of supported fonts supported by the document creation program and font data for each of the plurality of supported fonts - The font data is a font corresponding to characters included in the document when the document is loaded maintaining a support font storage unit stored in correspondence with each other;
when a first document is opened through the document creation program, reading data for the first document and checking a font identifier for a font applied to characters included in the first document;
When a first font identifier is identified as a font identifier for a font applied to characters included in the first document, it is checked whether a font identifier matching the first font identifier is stored in the support font storage unit step;
When it is confirmed that the font identifier matching the first font identifier is not stored in the supported font storage unit, a font check indicating that the font applied to the first document is a font not supported by the document creation program generating a message and displaying it on a screen;
After the font confirmation message is displayed on the screen, when a font replacement command for the characters included in the first document is received from the user, any one of the font data of the plurality of supported fonts is replaced with the font data. selecting with data;
reconstructing the first document by applying a font format according to the replacement font data to characters included in the first document when the replacement font data is selected;
After the first document is reconstructed, when a detailed font adjustment command for a first character among characters included in the first document is received from the user, a rectangular area of a preset size surrounding the first character is generated by doing so, extracting the rectangular area as a first character area;
Based on the font data for the plurality of support fonts stored in the support font storage unit, the font of the first character existing in the first text area is changed to a font corresponding to each of the plurality of support fonts by doing so, generating replacement text areas corresponding to each of the plurality of supported fonts, the size of the replacement text areas being the same as the size of the first text area;
After dividing the first text area and the replacement text area into nxn partial rectangular areas each comprising n horizontally and n vertically, each of the nxn partial rectangular areas for each of the nxn partial rectangular areas By assigning a code of 1 if a part of the first character is included in the interior of generating an n-by-n matrix for ;
An nxn operation matrix corresponding to each of the replacement character regions by calculating a Hadamard product with an nxn matrix for the first character region for an nxn matrix for each of the replacement character regions creating a;
Each of the number of component values of 1 included in an nxn operation matrix corresponding to each of the replacement character areas is counted, and a first component value corresponding to an nxn operation matrix in which the component value of 1 among the replacement character areas is maximally counted checking a font identifier for a first support font corresponding to the first replacement text area among the font identifiers for the plurality of supported fonts after selecting a first replacement text area;
selecting, as the detailed replacement font data for the first character, the font data stored in correspondence to the font identifier for the first supported font from among the font data for the plurality of supported fonts stored in the support font storage unit; ; and
When the selection of detailed replacement font data for the first character is completed, by applying a font format according to the detailed replacement font data for the first character to the first character included in the first document, the first Steps to rebuild the document
A method of operation of a document editing device that can check whether the font applied to the document containing the document is a supported font. delete 7. The method of claim 6,
The step of selecting any one of the font data as the replacement font data
Maintaining a similarity database in which a font identifier for each of a plurality of fonts designated as applicable to a character in advance, and a feature vector designated in advance for each of the plurality of fonts based on a predetermined degree of similarity between each font are stored in correspondence with each other to do;
After the font confirmation message is displayed on the screen, when a font replacement command for characters included in the first document is received from the user, the first font identifier stored in correspondence with the first font identifier is referred to the similarity database. identifying one feature vector, and calculating a Euclidean distance between the first feature vector and a feature vector corresponding to each of the font identifiers for the plurality of support fonts; and
Among the font identifiers for the plurality of supported fonts, a font identifier for which the Euclidean distance to the first characteristic vector is calculated with the minimum is selected as an alternate font identifier for the first font identifier, and is stored in the supported font storage unit. selecting, as the replacement font data, font data stored corresponding to the replacement font identifier among the font data for the plurality of supported fonts.
A method of operation of a document editing device that can check whether the font applied to the document containing the document is a supported font. 9. The method of claim 8,
After the first document is reconstructed through the step of reconstructing the first document, when a command to change the font for the characters included in the first document is received from the user, the second document is referred to the similarity database. reconfirming the first feature vector stored corresponding to one font identifier, and re-calculating the Euclidean distance between the first feature vector and the feature vector corresponding to each of the font identifiers for the plurality of supported fonts;
Among the font identifiers for the plurality of supported fonts, at least one candidate font identifier in which the Euclidean distance to the first characteristic vector is calculated within a predetermined reference distance is used as a change candidate font identifier for the first font identifier. selecting;
displaying information on a font name for each of the at least one candidate font identifier on a screen when the at least one candidate font identifier is selected as the change candidate font identifier;
When a command for selecting a second font identifier from among the at least one candidate font identifier is received from the user, it corresponds to the second font identifier among the font data for the plurality of supported fonts stored in the supported font storage unit selecting the stored font data as change target font data; and
reconstructing the first document by applying a font format according to the change subject font data to the characters included in the first document when the selection of the change subject font data is completed;
A method of operating a document editing device that can check whether the font applied to a document containing more is a supported font. delete A computer-readable recording medium recording a computer program for executing the method of any one of claims 6, 8, or 9 through combination with a computer. A computer program stored in a storage medium for executing the method of any one of claims 6, 8 or 9 in combination with a computer.

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