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Apparatus for converting gray level values of an image into binary level values
Apparatus for converting gray level values of an image into binary level values
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机译：用于将图像的灰度值转换为二进制值的设备
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摘要
The present invention relates to an apparatus for converting a gray level value of an image into a binary level value.;The apparatus includes a memory section for storing binary conversion error values for each pixel of the previous plurality of lines from the line containing the target pixel; A shift register unit for temporarily storing binary conversion error values of pixels included in a window of a predetermined size of the memory unit and shifting the binary conversion error values in the window line by line by a system clock; A gray level value corrector for outputting a gray level value corrected by adding a value obtained by multiplying the binary conversion error values in the window by an average and a gray level value of a target pixel currently input; And calculating a binary level value of a target pixel by comparing the corrected gray level value with a predetermined threshold value, calculating a binary conversion error value of a target pixel, and calculating a position of a current target pixel of the memory unit and the shift register unit. It includes a binary conversion and error calculation for storing in.;According to the present invention, the gray level value of an image can be quickly converted into a binary level value with a small memory and simple hardware.
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