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Image processing method

阅读:162发布:2021-03-07

专利汇可以提供Image processing method专利检索,专利查询,专利分析的服务。并且PURPOSE: To accurately discriminate whether an input image is a color image or black-and-white image by making a black-and-white/color discrimination on image data according to the frequency distribution of chromaticity information extracted from the image data.
CONSTITUTION: A color black-and-white discrimination part 2 which outputs the color black-and-white discrimination signal 24 of an input image in response to input signals from an image input part 1. Namely, the data from the image input part 1 are inputted to an input part 21 and sent to a data conversion part 22 in units of one picture element and the data conversion part 22 converts the input data on picture elements into tristimulus values X, Y, and Z, etc., represented by an XYZ color specification system of CIE and inputs them to a saturation conversion circuit 23; and saturation data is inputted to a histogram calculation part 24, which calculates the frequency distribution of the saturation data, so that whether the image data is black-and-white or color is discriminated. Consequently, it can accurately be discriminated whether the input image is black and white or color.
COPYRIGHT: (C)1991,JPO&Japio,下面是Image processing method专利的具体信息内容。

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