Method and apparatus for extreme-light image enhancement

An apparatus for extreme-light image enhancement, comprising:

• one or more processors;
• a computer-readable medium having instructions stored there on, which, when executed by the one or more processors, cause the apparatus to execute one or more components, wherein the one or more components comprise:
• a lighting classification module for classifying an input image into a classified image, which corresponding to one of at least a first lighting condition and a second light condition;
• and
• an image enhancement module for receiving the classified image, wherein the image enhancement module comprises at least a first image enhancement unit and a second image enhancement unit,
• wherein each of the first image enhancement unit and the second image enhancement unit, using a mapping function which is based on a gamma mapping function and a parameter estimation network which estimates a parameter of the corresponding mapping function, maps the classified image to an output image,
• wherein a corresponding parameter estimation network updates an estimated parameter for a mapping function of an image enhancement unit among the first image enhancement unit and the second image enhancement unit, and
• wherein the image enhancement module is configured so that:
• the first image enhancement unit of the image enhancement module maps the classified image to the output image, if the classified image is corresponding to the first lighting condition;
• and
• the second image enhancement unit of the image enhancement module maps the classified image to the output image, if the classified image is corresponding to the second condition.