High dynamic range image generating method and high dynamic range image generating apparatus

摘要

A method for generating HDR (High Dynamic Range) images, performed by a processing unit, the method at least containing: acquiring a frame 0; obtaining frame statistics information at least includes a first pixel count for a dark area and a second pixel count for a saturate area; calculating the ratio according to the first pixel count and the second pixel count; calculating a first expansion factor and a second expansion factor according to the ratio and the exposure setting of the frame 0; expanding the frame 0 to HDR space using the first expansion factor; expanding a frame 1 to the HDR space using the second expansion factor; and fusing the expanded frame 0 with the expanded frame 1.