Method and apparatus for performing dynamic range image processing

Abstract

A method and apparatus for performing dynamic range (DR) image processing are provided. The method includes obtaining a plurality of first images using an image sensor; merging the plurality of first images to obtain a second image, wherein a dynamic range of the second image is higher than a dynamic range of each of the plurality of first images; compressing the second image using a compression function to obtain a compressed second image; performing image processing on the compressed second image to obtain a processed image; and decompressing the processed image by using a transpose of the compression function to obtain an output image, wherein the compression function is divided into a plurality of segments, and wherein a compression power of each segment of the plurality of segments is determined based on a noise profile curve of the image sensor.