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Image processing method and apparatus including an error calculation for calculating a difference between the values of error correction data and stored representative values
Image processing method and apparatus including an error calculation for calculating a difference between the values of error correction data and stored representative values
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机译:包括用于计算纠错数据的值与存储的代表值之间的差的误差计算的图像处理方法和装置
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摘要
An image processing apparatus of a digital copying machine, a digital facsimile, or a printer comprises an input unit to input multi- level data; an arithmetic operating circuit for adding error data to the input multi-level data and for calculating error correction data; a selector to select a predetermined dot pattern on the basis of the error correction data; an error calculation circuit to calculate a difference between the representative value for each dot pattern and the error correction data; a storage memory for storing the difference as error data into a memory; and a dot pattern memory in which dot patterns corresponding to a plurality of colors have been stored. The input unit inputs multi-level image data of a plurality of colors and the selector selects the dot pattern whose dot arrangement differs in accordance with the color of the multi-level image data.
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