JP3079508B2 - Document conversion device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document conversion device for converting a document including a ruled line created by a document processing device such as a word processor between models.

[Conventional technology]

When a document processing device such as a word processor is used, the efficiency of document creation can be increased by diverting an existing document. However, when a document including a ruled line is targeted, compatibility between the models cannot be obtained. Therefore, when a document with a ruled line created by one model is used by another model, conversion is difficult. Although there is a program for such document conversion, not only a program for conversion between all models is prepared, but the version upgrade cannot follow up.

SUMMARY OF THE INVENTION An object of the present invention is to provide a document conversion device for easily performing such conversion between models of a document with ruled lines.

[Means for solving the problem]

The document conversion apparatus according to the present invention includes means for inputting image data of a document, means for recognizing a ruled line from the input image data, and converting the recognized ruled line image data into a ruled line code and a line segment of the ruled line. Means for converting to code data comprising link information indicating a connection state; means for performing scaling processing on the converted code data of the ruled line to convert it to ruled line data in a required format; and It is composed of means for outputting ruled line data to a recording medium.

(Operation)

Since the document to be converted is input and processed as image data, ruled line data that can be processed by the target model can be obtained regardless of the type of model that created the input document. The character data of the document can be easily converted by other means. Therefore, by using the present apparatus, a document with a ruled line created on a model of a certain word processor can be easily used on another model that is not compatible with the document.

Ruled line recognition is also possible from a reduced image of the document, and since it has a scaling function, the document to be converted can be reduced by a copying machine or the like or input at a reduced resolution, so that the memory required for processing is small. And the processing time is reduced by the reduced amount of information. Further, a large document which cannot be read by the input means (scanner) of the document image data can be handled.

In addition, coded ruled line data (the code data has link information indicating the connection state of the line segment in each of the up, down, left, and right directions, so that the code can be easily rearranged during the scaling process. become.

〔Example〕

FIG. 1 is a block diagram of a document conversion apparatus according to one embodiment of the present invention.

Reference numeral 1 denotes a scanner for reading a document created by a certain type of word processor or the like and inputting the image data. The image data is stored in the image data storage unit 2. Since the image data only needs to be able to recognize the ruled line, the document may be reduced by a copying machine in advance and then input by the scanner 1 or the document may be read by the scanner 1 at a reduced resolution. Therefore, the capacity of the image data storage unit 2 can be significantly reduced as compared with the case where image data of a full-size document or high-resolution image data is input.

Reference numeral 3 denotes a vectorization unit that extracts a core line of a line segment from input image data and stores the vector data in a vector data storage unit 4. By vectorizing the image data in this manner, the amount of data can be reduced, and the capacity of the vector data storage unit 4 can be reduced.
The efficiency of subsequent processing can be increased.

Reference numeral 5 denotes a vector recognition unit that recognizes ruled lines from vector data. The data of the ruled line recognized here is stored in the vector data storage unit 4. Reference numeral 6 denotes an editing unit that performs a shaping process such as connection of a recognized ruled line break. This edit
It is practical to do this by interactive processing via the display.

Reference numeral 7 denotes a coding unit which converts the data of the ruled line after the editing process into, for example, code data including a ruled line code shown in FIG. 2 and link information indicating connection states of line segments in the upper, lower, left, and right directions. I do. This code data is stored in the code data storage unit 8. Reference numeral 9 denotes a scaling unit that performs a scaling process on the coded ruled line data. Since this scaling process is performed, the original document image can be reduced and input. The result of the scaling process is stored in the code data storage unit 8.

Reference numeral 10 denotes a data conversion unit for converting the scaling result data into ruled line data of a model (target model) of a word processor that intends to use the converted document. The conversion result is output by the output unit 11 to, for example, a floppy disk. Reference numeral 12 denotes a control unit that controls each unit.

For example, consider a case where a document with a ruled line created by a model A of a word processor is used by a model B that is not compatible with the model A with a ruled document.

In this case, the document with the ruled line created by the model A is printed out.

The printed document with ruled lines is copied by using a copier, for example, reducing the size in half both vertically and horizontally (the area is reduced to 1/4).

The reduced copy is read by the scanner 1 and image data is input, and ruled lines are recognized and necessary editing is performed. If the document size used by the B model is the same as the size of the original document, the ruled line data is subjected to a scaling process for enlarging the size of the ruled data by two times, and the ruled line data in a format that can be handled by the B model And export it to a floppy disk. If the document created by the model A is the A4 version and the model B wants to create the B5 version document, the height and width are respectively scaled at a ratio corresponding to the size of the document.

Since the character data of the original document is generally compatible, the character data in the original document data can be stored on the floppy disk from which the ruled line data has been written (or on another floppy disk) using appropriate software means. Then, the floppy disk can be set in the B model and the document can be efficiently created using the ruled document created by the A model.

Here, the scaling of the ruled line will be described. For example, when the original drawing of the ruled line shown in FIG.
As shown in (1), it is necessary to interpolate the ruled line code. As for the ruled line codes, there are 11 models of codes as shown in Fig. 2 apart from the attributes such as thickness, line type, and color, but rearrange the codes so that they become similar to the original shape after enlargement. There must be.

For example, as shown in FIG. 4 (a) on the original drawing, when the character position in one line is associated with the arrangement of the ruled line code, the character position starts from 0 and the ruled line code is changed from 3 to 7. Is arranged. On the other hand, at the time of double magnification, the fourth
As shown in FIG. 7B, the original ruled line code is arranged at a position where the character position is doubled, and the code is interpolated between the codes by a code (code number 2) which is a horizontal line segment. That is, the code 1 in which the character position No. 6 has the original character position No. 3
Are arranged, and similarly, the codes 2, 3, 2, and 4 are arranged at the character positions of 8, 10, 12, and 14, respectively, and the character positions of 7, 9
The code 2 is interpolated to the numbers 11 and 11. If the same processing is performed on the column, the scaling processing of the ruled line code can be performed.

For code interpolation in such scaling processing, the coding unit 7 and the scaling unit 9 express ruled lines by a combination of ruled line codes and link information. That is, as shown in FIG. 5A, link information in each of the upper, lower, left, and right directions is provided corresponding to the ruled line code. For example, a cross-shaped code 7 has link information in four directions (up, down, left, and right), a code 1,4,9,11 at the corner has link information in two directions, and a code 2,5 for a horizontal or vertical line. Link information is provided in two directions.

In the example of FIG. 4A, the code 1 is located at the third character position, and the code 4 is arranged on the right side of the code 1. Therefore, it is assumed that the right link of the third code 1 is connected. It is assumed that the link to the left of the number character position is also connected. Therefore, when the character is enlarged by a factor of two, the character position 7 corresponding to the gap between the two codes is indicated by a link from both the left and right sides.

FIG. 5B is an explanatory diagram of the link and the interpolation, in which the dotted line indicates the interpolated code, and the arc indicates the link between the codes.

The conversion output of the data conversion unit 10 is data of only the ruled line code.

Conversely, when shrinking, code 2,2
Set 5 to a lower priority than other codes and set this code
If 2,5 overlaps with another code, code 2,5 is deleted. When codes other than codes 2 and 5 overlap, the code that is added later remains (or vice versa)
However, the leading and trailing ends of the connection of the ruled line code give priority to the original code. Of course, the processing of the overlapped code may be performed by another method.

The scaling process may be performed on the vector data, and the result may be converted into a ruled line code.
The result may be converted to a ruled line code.

〔The invention's effect〕

As is apparent from the above description, according to the present invention, the ruled line data can be converted between models without selecting the type of the document with the ruled line. This makes it easier to use existing ruled documents between word processor models that do not have the necessary functions, and also allows the image of the document to be converted to be reduced and input, reducing the memory capacity required for the device and increasing the efficiency of the conversion process. Can be achieved.

[Brief description of the drawings]

FIG. 1 is a block diagram of a document conversion apparatus according to an embodiment of the present invention, FIG. 2 is a diagram showing ruled line codes, FIG. 3 is a diagram showing original and doubled diagrams of ruled lines, and FIG. FIG. 5 is an explanatory view of rearrangement of ruled line codes in the case of enlargement, and FIG. 5 is an explanatory diagram of ruled line code interpolation and links. 1 ... Scanner, 3 ... Vector conversion unit, 5 ... Rule line recognition unit, 6 ... Editing unit, 7 ... Code coding unit, 9 ... Scaling processing unit, 10 ... Data conversion unit, 11 ... Output section.

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Claims (1)

(57) [Claims] Means for inputting image data of a document;
Means for recognizing ruled lines from the input image data, means for converting the recognized ruled line image data into code data comprising a ruled line code and link information indicating the connection state of the ruled line segments, It is characterized by comprising means for performing a scaling process on the converted ruled line code data and converting the converted ruled line data into a required format ruled line data, and means for outputting the converted ruled line data to a recording medium. Document conversion device.