VISUAL PROCESSING DEVICE, VISUAL PROCESSING METHOD, VISUAL PROCESSING PROGRAM, AND SEMICONDUCTOR DEVICE

摘要

There is provided a visual processing device for realizing gradation processing for further improving the visual effect. A visual processing device (1) performs gradation processing of an input signal IS for each image area and includes an image division section (2), a gradation conversion curve derivation section (10), and a gradation processing section (5). The image division section (2) and the gradation conversion curve derivation section (10) creates a gradation conversion curve Cm of an image area Pm by using a brightness histogram Hm of a wide range image area Em. The gradation processing section (5) performs gradation processing of the image area Pm according to the gradation conversion curve Cm derived.