JP2831390B2 - Image processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a digital copying machine having an image editing function,
The present invention relates to an image processing device such as a facsimile.

[Conventional technology]

With the advent of digital copiers, various types of image processing have become possible.

Thickening or thinning of characters is one of them, and several proposals have been made for this processing.

For example, for the fattening process, a method of inputting a blurred image when reading a scanner has been considered.

[Problems to be solved by the invention]

However, in the above-mentioned conventional system, the optical part (optical device) becomes complicated, and when the width of the thickening is made plural or large, this further causes a problem.

An object of the present invention is to provide an image processing apparatus that performs appropriate thickening processing without complicating an optical device.

[Means for solving the problem]

The above object is to provide an image processing apparatus for thickening and processing an input image, comprising a target pixel and peripheral pixels, and input so as to form a matrix formed in a round shape and a matrix formed in a square shape. Matrix extraction means for arranging image data, matrix selection means for selecting one of the round-shaped matrix and square-shaped matrix according to the selection data, and This is achieved by providing processing means for making the image data of the pixel of interest thicker.

[Action]

In the above means, the input image data is arranged so as to form a matrix formed in a round shape and a matrix formed in a square shape by the matrix extracting means, and according to the selected data by the matrix selecting means. One of the matrix formed in the round shape and the matrix formed in the square shape is selected, and the image data of the pixel of interest is thickened and processed by the processing means according to the output of the matrix selection means. Can be performed.

〔Example〕

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

FIG. 1 is a block diagram of an embodiment of an image processing apparatus according to the present invention, wherein 1 is a binarization unit, 2 is a matrix extraction unit, 3 is a matrix selection unit, and 4 is a matrix reference unit.

FIG. 2 is a block diagram of another embodiment of the image processing apparatus according to the present invention, wherein 5 is a binarizing section, 6 is a matrix extracting section, 7 is a matrix selecting section, 8 is a mode selecting section, and 9 is a matrix. Reference section.

In the apparatus shown in FIG. 2, for example, 8-bit digital image data is input to the binarizing section 5, and the mode is selected by the mode selecting section 8, thereby selecting the fattening mode and the thinning mode, and selecting the matrix. The matrix shape can be selected by the unit 7 and the shape of the character can be changed by the data extracted by the matrix extraction unit 6.

Next, the actual processing flow will be specifically described. First, the mode selecting unit 8 selects a fat mode or a thin mode. In this case, when the mode select signal is “0”, the mode is the fat mode, and when the mode select signal is “1”, the mode is the thin mode.

Next, the matrix selection unit 7 selects the shape of the matrix.

FIGS. 3 and 4 are matrix pattern diagrams, and the matrix selector 7 selects such two types of matrices. Here, a matrix is selected, and the data is extracted by the matrix extracting unit 6. When the matrix selection signal is “0”, it corresponds to the pattern shown in FIG. 3, and when it is “1”, it corresponds to the pattern shown in FIG.

FIGS. 5 and 6 are partial block diagrams of the matrix extraction unit. In FIG. 5, 10 to 13 are line memories and 14 to 38 are latches.

In FIG. 5, the input digital binary data is input to a latch 14 and line memories 10 to 13, and is developed in a matrix by each latch.

The data developed here is input to the block shown in FIG. Here, (1) is for Latch 16 and Latch 20 ~
22 and Latch 24-28 and Latch 30-32 and Latch 36,
(2) Latches 14 to 38. These signals are input to the selector 43 via the ungates 39 and 40 and the OR gates 41 and 42. The upper bit (mode select signal) and the lower bit (matrix select signal) are input to the selector 43. In addition, the latch 26 is set as pixel data of interest, that is, original data.

The reference data of the target pixel data and the peripheral pixel data is input from the matrix extraction unit 6 to the next stage matrix reference unit 9.

FIG. 7 is a block diagram of the matrix reference section.
Is a questionnaire, 45 is an orchest, and 46 is a selector.

In the matrix reference section 9 as processing means, the reference data of the target pixel data and the peripheral pixel data are compared by the mode select signal, and the image data subjected to the fattening process or the thinning process is output.

Thus, it is possible to perform processing in accordance with the characteristics of the character by making the character thicker or thinner in multiple stages and by selecting a matrix shape. Specifically, it is better to use a relatively round reference matrix for rounded characters, and to use a relatively square reference matrix for squared characters. is there.

〔The invention's effect〕

As described above, according to the present invention, input image data is arranged so as to form a matrix formed in a round shape and a matrix formed in a square shape by a matrix extracting means, and the matrix selecting means Since one of the matrix formed in the round shape and the matrix formed in the square shape is selected according to the selection data, and the image data of the pixel of interest is thickened and processed by the processing means in accordance with the output of the matrix selection means. , An appropriate fattening process can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of an image processing apparatus according to the present invention, FIG. 2 is a block diagram of another embodiment of the image processing apparatus according to the present invention, FIGS. 3 and 4 are matrix pattern diagrams, 5 and 6 are partial block diagrams of the matrix extracting section, and FIG. 7 is a block diagram of the matrix reference section. 1,5 ... binarization unit, 2,6 ... matrix extraction unit, 3,7 ...
Matrix selection section, 4,9 ... Matrix reference section.

Claims (1)

(57) [Claims] 1. An image processing apparatus for thickening and processing an input image, comprising an input image and a peripheral pixel, wherein an input matrix is formed so as to form a matrix formed in a round shape and a matrix formed in a square shape. Matrix extracting means for arranging the selected image data, matrix selecting means for selecting one of the round-shaped matrix and the square-shaped matrix in accordance with the selected data, and an output of the matrix selecting means. Processing means for thickening and processing the image data of the pixel of interest in response to the request.