Be used for increasing the equipment and the method for the dynamic range of digital picture

摘要

It is a kind of to indicate that the dynamic range of original image of image includes application extension function to generate growth data with dynamic range greater than original image from raw image data for increasing, extension mapping is obtained, indicates the brightness level in region associated with the pixel in image including data. Then this method combines image data and growth data and is mapped according to extension, to generate the image data of enhancing. What device was used to increase the dynamic range of image data includes that dynamic range expander is generated for growth data, and brightness analysis generates an extension mapping and combiner, for combining original and growth data, is provided according to variable weighting through extension mapping.