Image processing and recognition method using color invariant

摘要

The present invention relates to an image processing and recognition method using color invariant, the image recognition method using color invariant comprises: a first step of converting an image signal into chromaticity coordinates; Creating a color histogram from the converted chromaticity coordinates; Detecting a maximum coordinate value of the color histogram; A fourth step of normalizing the maximum coordinate coordinate value for each channel to calculate a coordinate value having a color invariant excluding an influence of illumination from an image signal; A fifth step of comparing a calculated color invariant coordinate value with a value stored in a database and determining a recognition result if the image signal is an input signal for image recognition; And a sixth step of storing coordinate values having color invariants in a database if the image signal is a data signal to be databased for image recognition.;According to the present invention, a stable image recognition result can be obtained by performing image processing for extracting color invariants which are not affected by changes in illumination and geometric conditions with the input device in the input color image.