JPS59181871A - System for correcting magnified character - Google Patents

Abstract

PURPOSE:To attain smoothly the magnification of a character by scanning a character pattern magnified simply by two lines each so as to check the overlapping of black run length and correcting a sheared part if the overlapped part is shorter than the specified value with a shift at the end. CONSTITUTION:The magnified character pattern is scanned by two lines each so as to check the overlapping of the black run length of two respective lines. If the overlapped part is shorter than certain length with a shift at the end, the black run having a prescribed length is added to the black run of the shifted part as shown in hatched lines in Figure. In general the number of sections of dots to be corrected at n-times magnification (where; n is an integral number) is 1/4Xn<2>. In case of n(=2n'+1)-times magnification (where; n' is an integral number), however, the number of sections of the dots to be corrected is 1/4X (2n')<2>. Thus, in case of two-times and three-times magnification, the dots are corrected by the sections being the same size as the original size.

Description

Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a method for enlarging a character pattern. The enlarged character pattern is scanned two lines at a time as image information of N lines of M frames per line, and overlapped with a black thin length shorter than the predetermined length.
In addition, if there is a deviation at the end, the part with the deviation is corrected.

[Prior art and problems]

When it is necessary to prepare character patterns of various sizes, storing character patterns of all sizes in memory does not require a large amount of memory, or ensures sufficient storage space for other uses. It's difficult because you don't get caught. Therefore, a method is used in which an original character pattern is stored in a memory, and this original character pattern is used and enlarged at an appropriate magnification to obtain a character pattern of the required size. However, when enlarging a character pattern, simply enlarging it will cause the patterns to match each other, which is particularly noticeable on curved parts. Therefore, conventionally, when enlarging character patterns,
A method is used in which correction is performed based on a pattern for each block. However, this conventional method has the disadvantage that there are many patterns, resulting in a complicated set of moves.

[Purpose of the invention]

The present invention is based on the above consideration, and it is an object of the present invention to provide an enlarged character correction method that can perform effective correction using relatively few principles.

[Structure of the invention]

To this end, the enlarged character correction method of the present invention includes a storage means for storing an original character pattern and an enlarged character pattern, a character pattern enlarging means for enlarging the original character pattern to create an enlarged character pattern, and an enlarged character pattern enlarged by the character pattern enlarging means. The character pattern correction means includes a character pattern correction means for correcting a sharp enlarged character pattern, the character pattern enlargement means creates an enlarged character pattern from the original character pattern stored in the storage means, and the character pattern correction means creates an enlarged character pattern. In this enlarged character correction method, a corrected enlarged character pattern is obtained by correcting the character pattern, and the character pattern correction means converts one character pattern into two
Scan the dots and lines one by one to check the degree of overlapping of the black run lengths and the length of each point run length, and check the ends of the black run lengths that are overlapped by black run lengths that are shorter than a predetermined length and that match the shape. characterized in that the enlarged character pattern is corrected by adding a black run to the end white run of the shorter black run length at the end, on the condition that there is a misalignment. It is.

[Embodiments of the invention]

Hereinafter, embodiments of the present invention will be explained with reference to the drawings.

FIG. 1 is a diagram showing an implementation of an unknown system configuration, FIG. 2 is a diagram showing an example of sleeve closures using the character pattern of the present invention, and FIGS. A diagram explaining the processing flow 11- by the correction dot calculation device, FIG. 5 is a diagram showing a #iii positive example at 2x enlargement, FIG. 6 is a diagram showing an example of extraction at 3x enlargement, and FIG. The figure is an example of determining the sleeve stop position quotient.
, FIG. 8 is a diagram showing an example of character pattern [l remainder. In FIG. 1, j is a memory device, 2 is a correction dot calculation device, 3 is an ib' control storage device, 4 is a character pattern enlarging device Fi, 5 is a character pattern correction device, and 6 is an output device.
i! 'I' beg.

In FIG. 1, a memory device 1 stores an original character pattern, and also stores an enlarged character pattern of the original character pattern enlarged by a character pattern enlarger 4, which is corrected by a character pattern correction device 5. The widened and widened pattern is output to the output device 6. The correction dot calculation device 2 stores the correction dots calculated by the correction dot calculation device 2, and the correction dots are used when the character pattern correction device 5 corrects the enlarged character pattern. When outputting an enlarged character pattern from the output device ff6, the character pattern enlarging device 4 creates the original character pattern stored in the memory device 1, and also creates a correction tono)'
J4--The output device 2 creates correction dots for the enlarged character pattern. Then, the enlarged character pattern is corrected with correction dots by the character pattern correction device 5 and output.

In order to calculate the correction dots, one dot is lined up in one line, and the dots for correction are placed in the specified part of the enlarged character pattern based on the correlation between the two lines. This is a method that judges whether or not it is n, and then modifies the enlarged character pattern.For simplicity, let's take the case of 2x enlargement as an example.The following "length" Define.Now, in the case of □α×α dot, X such that α/3≦X is called a length.The length of A line with a square of α is set to be α, and the line is scanned horizontally two lines at a time in order.In this case, it is scanned α-1 times.

Then, correction is applied based on the correlation between the two scanned lines. Next, the principle of this correction will be explained. In addition,
Hereafter, the squares with consecutive black colors are called the black run length.

■ If there is a black run lotus name with a length of 2 (≧α/3) or more on at least one of the two lines, the black thin length will not be corrected.

■ Even if a black run length shorter than X appears on two lines, but the black run lengths at the same length are exactly ML without deviation, the black run length is not corrected.

■ The thermal run lengths of n for the two lines are the above ■ and ■.
If the above condition is not satisfied and there is an overlapping part, a black run with a length of 1, which is a correction of 1/4 square, is added to the enlarged character pattern for the white run (white part) of the shifted part. An example of this is shown in Figure 2, where even if a black run with a mesh part is added, other black run lengths above or below the black run length of one line are within that range. sometimes,
As shown in Figure 2 (B), (C), (to), the white of both (Figure 2 (C)) or one (Figure 2 CB), 0) of the shorter black run length. Add a 1/4 square correction to the run.

Such a correction according to the present invention can be performed in the same way for general Kn times enlargement, and by making the length variable, correction can be easily performed depending on the type of character pattern. I can do it.

'fr-da・Generally- is n times magnification (ni''j integer)
In this case, the dot grid to be corrected is ÷X, 2,
However, it is enlarged by n (= 2 n'+1) times (n'l
In the case of odd-number expansion such as 'j integer), the correction dot grid is +X(2i')2. becomes. Therefore, 2
When magnifying the image twice or three times, the image is corrected using the same squares as the original size.

Next, examples of processing by the correction dot calculation device are shown in Figures 3 and 4.
This will be explained with reference to the figures.

■ Decide M/3 and how many times to enlarge based on the number of dots in the character pattern to be enlarged. M indicates the width of the turn. Next, process (2).

(Z) Set as N-1. Next, perform the process (■).

(3,) Check whether N=L-1. L is the letter ノ (indicates the height of the turn).

If Yes, the process ends; if No, (4)
0 ■ Scan the Nth column of the character pattern. Next, perform the process (5) (■ Check whether there is a black run length on the Nth line.

In the case of Ygg, process (2) is performed, and in the case of NO, process (2) is performed.

■ Set N=N+1. Next, return to the process of ■.

■ Check whether the black run length is smaller than M/3.

If Yes, perform the process ■, and if No (7), perform the process @.

■ Find out whether there is a black run length that has a part that overlaps the line below the black run length.

In the case of Ygs, process (■) is carried out, and in the case of No, the process of horse mackerel is carried out.

■ Check whether the bear run length of the upper line and the black run length of the lower line M are smaller than M/3.

In the case of Yes, the ω process is performed, and in the case of +Na, the beam process is performed.

ω Two black run lengths with Hh parts above and below are
Check to see if they have the same width and overlap exactly.

In the case of Yes, processing of 0 is performed, and in the case of No, processing of Sha is performed.

■ Calculate the corrected dot position. Details will be described later as processing starting from [phase]. Next, perform the process (■).

- Check whether it is the end of the Nth line. If it is 0Yss, perform the beam processing, and if No, perform the 0 processing.

0 Start the continuation of scanning on the Nth line 0 Next, return to the process of (2).

(b) Set N=N+1. Next, return to the process of ■.

Further, the process of calculating the corrected dot position of 0 will be explained with reference to FIG.

Rib Check to see if the black run length on one side overlaps without protruding from the other black run length.

In the case of Yg, s, process @, and in the case of No, process [
stocks].

■) Check whether the upper overlapping black thin length is on the left side.

In the case of Yes, a correction position as shown by the dotted line 2 in FIG. 4 is calculated, and in the case of No, the correction position as shown in the dotted line 1 in FIG. 4 is calculated.

Check whether the left ends of the two overlapping black run lengths are aligned.

In the case of Yes, the process of ■ is performed, and in the case of No, the process of 0 is performed.

[Phase] Check whether the upper black run length is long ○ If Yes, calculate the correction position as shown by the dotted line in Figure 4, and if No, ( A correction position as shown by the dotted line in No. 3 is calculated.

[Phase] Check whether the right edges of the two overlapping black lengths are aligned.

If Yes, process @, and if No, process [stock].

■ Check whether the upper black run length is long.

In the case of Ygs, the correction position is calculated as shown by the dotted line at 8 in Fig. 4, and in the case of No, the correction position is calculated as shown by the dotted line at 7 in Fig. 4. Check whether the black run length of is long.

If Yes, the correction position @ as shown by the dotted line 6 in FIG. 4 is calculated, and if No, the correction position @ shown by the dotted line 5 in FIG. 4 is calculated.

FIG. 5 shows an example of the result of calculating the corrected position as shown by point m of 8 in FIG. 4 based on the determination of the above processing. The example shown in FIG. 5 is when the image is enlarged twice. Also, 3
FIG. 6 shows an example of the result of calculating the correction position shown by the dotted line 8 in FIG.

Correction is realized as follows based on the eight patterns classified by the process shown in FIG.

Figure 7 shows an example of a cool pattern with 16 donots per line. In Figure 7, the result of taking the AND from the lower line (2) of the upper line (1) with the white run as "0" and the black run as "1" is shown between the upper line and the lower line. A N D (3) and the rl of the upper line",
I-o'' pattern is shown and the IC is set at one line (4). Based on 8 of these, A N D (3) is ``0''.
” to “1” and from “1” to “O” are the points that should be corrected. Therefore, the location is 167
3 Check whether the length is 6 or more, and if it is 6 or less, make corrections.

At that time, check the position of the upper line (4) one place before the dot that changed from "0" to "1" in A N D (3), and if it is "0", move to the upper line side. Correct, “1”
If so, it is corrected to the lower line side. Also, A N D
In (3), changes from "0" to "1" and from "1" to "0" always appear in pairs, so after the left side correction, by performing the right side correction, the first Correction is completed. By processing in this way, it is possible to easily perform correction without having to be conscious of the eight patterns.

48 from the original character pattern "Kan" of 24 x 24 dots
Figure 8 (5) shows an example obtained by simply enlarging to ×48 dots, and Figure 8 (5) shows an example obtained by correcting 2"L'Y. B).

In addition, in the above theory, 1l-1, two dot lines were scanned by the original character pattern, but when scanning an enlarged character pattern enlarged by α times, one line should be scanned with the width of α dots. become.

〔Effect of the invention〕

As is clear from the above explanation, according to Ippon Komei, a large correction effect can be obtained with a simple principle, and character patterns can be enlarged smoothly. It is possible to easily create high-quality enlarged character patterns in various sizes without having to do so.

[Brief explanation of drawings]

FIG. 1 is a diagram showing one embodiment of the system configuration of the present invention, FIG. 2 is a diagram showing a positive example of i11j by the character pattern correction device of the present invention, and FIG. A diagram explaining the flow of processing by the dot calculation device, FIG. 5 is a diagram showing an example of correction during 2x enlargement, FIG. 6 is a diagram showing an example of correction during 3x enlargement, and FIG. ” A diagram showing a regular example, No. 81 No. 1 is a diagram showing an example of correction of the character pattern “Kan”. 1...Memory device, 2...Correction dot scoop, output device head,
3... Control storage device, 4... Character pattern enlarging device, 5... Character pattern correction device, 6... Output decoration. Patent Applicant: Fujitsu Limited Agent Benchoshi Kyotani 2 Figures (△) (B) CC) (D) Small 3 Figures

Claims (1)

[Claims] A storage means for storing the original character pattern and the enlarged character pattern, a character pattern enlarging means for enlarging the original character pattern to create an enlarged character pattern, and a character pattern correction for correcting the enlarged character pattern enlarged by the character pattern enlarging means. means, the character pattern enlarging means creates an enlarged character pattern from the original character pattern stored in the storage means, the character pattern correcting means corrects the enlarged character pattern, and the corrected enlarged character With the enlarged character correction method used to obtain patterns, the character pattern correction means scans one character pattern 2 dots and 7 lines at a time, and calculates the degree of overlap of black run lengths and the length of each black run length. If the black run length is overlapped by a black thin length shorter than the specified feldspar, and there is a misalignment at the end of the matching black run length, the shorter black run length at the end. An enlarged character correction method characterized in that the enlarged character pattern is corrected by adding black runs to the end white runs.