JPS61260290A - Dot pattern expansion processing system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a dot pattern enlargement processing method, particularly regarding a typical local form in a unit dot pattern.
The present invention relates to a dot pattern enlarging processing method in which a smoothing pattern having a specified enlargement ratio is generated, and a local form in a dot pattern to be processed is replaced with the smoothing pattern.

[Conventional technology]

Conventionally, a unit dot pattern is held on a character generator, the unit dot pattern is read and enlarged, and the enlarged pattern is outputted to a display, a printer, or the like.

But in this case.

As shown in FIG. 13, when the unit dot pattern 1 is enlarged, for example, by 4×4 times to obtain an enlarged pattern 2, an undesired staircase form occurs in the diagonally shaded portion of the pattern. For this,
For example, if only simple enlargement processing is applied, Fig. 14 (A)
It is desirable to perform smoothing processing as shown in FIG. 14(B) for the locations shown in the figure. In FIG. 14, "1" represents a black dot, and "O" represents a white dot.

FIG. 15 shows the results of examining the local morphology to be processed in performing the above-mentioned smoothing. That is, as is clear from FIG. 14(B), the areas where smoothing is performed when obtaining the enlarged pattern are white dots (the areas indicated by "0" in the figure), and the areas where smoothing is performed when obtaining the enlarged pattern are white dots (the areas indicated by "0" in the figure), and ), a white dot with black dots arranged diagonally around the white dot (the location marked "1" in the figure) is to be processed. In the case of a white dot whose periphery is a white dot as shown in FIG. 15 (J), or if the dot itself is a black dot, it may be sufficient to perform enlargement without smoothing. I understand.

[Problem that the invention seeks to solve]

As described above, it is relatively easy to determine which white dots should be smoothed. but.

It is not always easy to know how to skillfully perform this smoothing.

[Means for solving problems]

The present invention provides the above-mentioned smoothing means, and generates an enlarged smoothing pattern while smoothing the local form in the unit dot pattern in accordance with the enlargement rate, and The unit dot pattern is skillfully replaced with the above smoothing pattern.

FIG. 1 shows the configuration of an embodiment of the present invention. In FIG. 2, reference numeral 3 is a data processing section, 4 is a character generator in which unit dot patterns are stored, and 5 is a pattern memory. 6 is a smoothing table that is created in the present invention and stores the enlarged pattern, and 7 is an address conversion table. This table represents a table for determining an address for indexing the smoothing table.

The objects to be smoothed are the nine local forms shown in Figures 15(A) to 1). It is only necessary to add cases where the dot is a black dot and prepare smoothing patterns for these cases on the smoothing table 6 shown in FIG.

However, in order to simplify the operating procedure,
Seven smoothing patterns are generated and stored on the smoothing table 6. The "enlarged pattern address" shown in FIG. 2 represents address information that stores the smoothing pattern shown above the number indicating the address. In addition, the illustrated address "5J, r7J, rloj, rllJ, r13J, r
14'' is a pattern that cannot actually exist.

Of the 17 patterns shown in Figure 2 above, the 16 patterns excluding the pattern associated with the enlarged pattern address "16" can be obtained by combining the smoothing patterns shown in Figure 3. 9
For example, the pattern associated with enlarged pattern address "6" shown in FIG. 2 is the pattern associated with enlarged pattern address "2", and the pattern also associated with address "4". This corresponds to a combination of Take advantage of this.

As will be described later in connection with FIGS. 4 to 6, the process of indexing the smoothing table 6 is performed skillfully.

[Effect]

The data processing unit 3 shown in FIG. 1 is a smoothing processing mechanism that generates a smoothing pattern.

It has an enlargement processing mechanism that extracts a desired smoothing pattern from the smoothing table 6 and writes it onto the pattern memory 5. Regarding the enlargement processing mechanism, please refer to Section 4.
Since it will be described later with reference to FIGS. 8 through 8, the above-mentioned smoothing processing mechanism will be explained here.

When the magnification factor for generating the magnified pattern is given, it is determined that the pattern will be magnified to 1, for example, 4×4.

The smoothing processing mechanism generates 17 smoothing patterns shown in FIG. 2, each having a size of 4×4 dots on a memory having a size of 8×8 dots, for example. That is, each of the smoothing patterns shown in FIG. 2 has a size of 4.times.4 dots and a pattern in which logic "1" is set on the black area shown is generated. Each of these patterns is then stored at the position indicated by the enlarged pattern address shown in FIG. 2, that is, at the corresponding position on the smoothing table 6. Enlarged pattern address “2” shown in Figure 2
The smoothing pattern of 4×4 dots corresponding to 2 may be considered to be the 4×4 dot pattern indicated by arrow a in FIG. Similarly, the smoothing pattern corresponding to address "8" can be considered to be a 4.times.4 dot pattern as indicated by the arrow in FIG.

The 17 smoothing patterns generated as described above are stored on the smoothing table 6 in correspondence with each enlarged pattern address.

In a state where such preparations have been made, the processing by the above-mentioned enlargement processing mechanism is performed. The enlargement processing mechanism reads unit dot patterns to be processed from the character generator 4.

If a part of the unit dot pattern is shown in Fig. 4 (A) (
Assume that pattern 8 is shown in B), (C"), and (D), respectively. Then, the white dot (
Suppose that we want to extract a smoothing pattern for logical "0").

In this case, use a 2×2 window 9 to locate the white dot (
The pattern IOA when the 0") being examined is positioned at the lower right is extracted as "0100". Similarly, using window 9, extract the pattern IOB when the white dot is at the lower left as rl 001J, extract the pattern IOC when it is at the upper right as ro O01J, and extract the pattern IOD when it is at the upper left as ro. 110J
Extract as.

The address conversion table 7 shown in FIG. 1 has a configuration as shown in FIG. ) is (i) at the bottom right, it outputs the value "1", (ii) when it is at the bottom left, it outputs a dummy + (iii) when it is at the top left, it outputs the value "4". .

(ii) If it is in the upper right corner, it is configured to output a dummy.

In the case of the white dot with an angle line shown in FIG. 4, the pattern is ro 100J as described above.

rloolJ, roooIJ, and rolloJ are extracted, the address conversion table 7 is accessed by these, and the values read from the table 7 are added as shown in FIG. 6, and the value "6" of the addition result is obtained. The value "6" is the smoothing table 6 shown in FIG.
By accessing the smoothing table 6, the smoothing pattern corresponding to the enlarged pattern address "6" shown in FIG. 2 is extracted. The extracted smoothing pattern is written as pattern C in the pattern memory 5, as shown in FIG.

Figure 8(A) is simply 4 without smoothing.
An example is shown in which the pattern is enlarged to x4, and FIG. 8(B) shows an example in which smoothing is performed. A pattern 8 corresponding to the pattern 8 shown in FIG. 4 is written on the top. The enlarged pattern 2 is read out as necessary,
Output to display etc.

〔Example〕

FIG. 9 shows a processing flow in the data processing unit 3 shown in FIG. 9, and then enlargement processing as described above with reference to FIGS. 4 to 8 is performed.

FIG. 10 shows the processing flow in the enlargement process. When the character generator 4 is searched and the dot of interest (the dot being examined) in the unit dot pattern to be processed is a black dot (logical "1"), the enlarged pattern address is determined by the route passing through processing ■ and ■. The value "16" is given as "16". That is, smoothing
The smoothing pattern shown in FIG. 2 (corresponding to enlarged pattern address "16") is extracted from table 6 and written into pattern memory 5 (enlargement memory). If the dot of interest is a white dot and both of its right neighbors are white dots, process ■.

The value "Oj" is given as the enlarged pattern address by the route passing through (2), and the smoothing pattern shown in FIG. 2 (corresponding to the enlarged pattern address "0") is obtained. Further, for the white dots that have passed through the above processes (1) and (2), enlarged pattern addresses are calculated in the process (2) in the form as explained with reference to FIGS. 4 to 6 above.

Process (2) writes the smoothing pattern extracted from the smoothing table 6 onto the pattern memory 5.

FIG. 11 shows a manner in which the processing flow shown in FIG. 10 is executed. Focusing on the white dot as indicated by the reference numeral 1, extraction is performed using the window 9 as shown in FIG.

Then, the address conversion table 7 is indexed as shown in FIG. 5, and in the addition process indicated by reference numeral 12, the enlarged pattern addresses are added as shown in FIG. Depending on the result, the smoothing table 6 is accessed, and the smoothing pattern read from the table 6 is written onto the pattern memory 5.

If the dot of interest is a white dot whose left and right neighbors are both white dots, a value "0" is given as the enlarged pattern address, and the smoothing table 6 is accessed. If the black dot is the dot of interest, the value "16" is given as the enlarged pattern address, and the smoothing table 6 is accessed.

Figure 12 shows the result of enlarging the character ``love'' to 3x3. Pattern 13 shown in FIG. 12(A) represents a unit dot pattern of the character "love". however,
The overall size of Figure 1 is enlarged for clarity. The pattern 14 shown in FIG. 12(B) represents the result of enlargement to 3×3 without smoothing. Moreover, the pattern 15 shown in FIG. 12(C) is.

The result is shown after being expanded to 3×3 after smoothing.

〔Effect of the invention〕

As explained above, according to the present invention, a preferable smoothing pattern corresponding to the magnification ratio is prepared, and the dots on the unit dot pattern are replaced with this smoothing pattern, as shown in FIG. 12(C). , it becomes possible to obtain an enlarged pattern that has been smoothed.

[Brief explanation of drawings]

FIG. 1 is a configuration of an embodiment of the present invention, and FIGS. 2 to 8 are explanatory diagrams illustrating processing in the present invention. FIG. 9 shows a processing flow in the data processing unit, FIG. 10 shows a processing flow in the enlargement processing mechanism, and FIG. 11 shows a mode in which the processing flow shown in FIG. 10 is executed. Figure 12 is an explanatory diagram of the enlargement processing results, Figures 13 to 1
FIG. 5 shows an explanatory diagram for explaining the prerequisite problem of the present invention. In the figure, 1.13 are the unit drive patterns. 2.15 are enlarged patterns, and 3 is a data processing unit. 4 represents a character generator, 5 represents a pattern memory, 6 represents a smoothing table, and 7 represents an address conversion table. Patent Applicant Yusank Electronics Industry Co., Ltd. Representative Patent Attorney Mori 1) Hiroshi (2 others) Fig. 1 Kousen-i side 01234 Δ 6 △SukuQ-Ko8 9
Δ △ 12 △ Mu 150124 θ I3 Drunkenness 4 Depression 6 Figure 14 (A) <B) (C) (D)
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Claims (1)

[Claims] A character generator in which a unit dot pattern with a predetermined size is stored, and an enlarged pattern that is obtained by reading the unit dot pattern stored in the character generator and enlarging the size of the unit dot pattern. In a dot pattern enlargement processing method that includes a data processing unit for generating data and a pattern memory for storing the generated enlarged pattern, and enlarges and outputs the size of a unit dot pattern stored in the character generator. , a smoothing processing mechanism that generates a smoothing pattern in which the local form is enlarged in a smoothed form based on an instructed enlargement rate and a predetermined local form of the unit dot pattern; - Equipped with a smoothing table in which patterns are stored, and an enlargement processing mechanism that extracts the contents of the smoothing table in accordance with the local form in the read unit dot pattern and writes it into the pattern memory. , the data processing unit generates the smoothing pattern using the smoothing processing mechanism and processes the smoothing pattern.
A dot pattern enlargement processing method, characterized in that the enlarged pattern is stored in a table and the enlarged pattern is formed on the pattern memory while extracting the contents of the smoothing table by the enlargement processing mechanism.