COLOR CORRECTION METHODS IN IMAGE PROCESSING PIPES AND IMAGE PROCESSING MACHINES

Abstract

The invention relates to color correction in an image processing pipeline, specifically a method for color correction in an image processing pipeline and an image processing machine. The method may include, for example, the first image data acquisition step corresponding to reference luminance data and reference chrominance data for each of the many pixels, determining that the first image data corresponds to a raw image captured in a dark environment, generating a second image data by performing one or more color mapping operations on the first image data, the second image data corresponding to the current luminance data and current chrominance data for each of the many pixels, and generating the output image data.For each of the many pixels, the output data may include the output luminance value of a pixel corresponding to the current luminance data, and the chroma values ​​of the pixel corresponding to the data selected from either the reference chroma data or the current chroma data, the selection based at least in part on the reference chroma data and the current chroma data.