Patent ID: 9240037
Filing Date: 2016-01-19
CPC Classification: G06T,H04N

Claim Text:
1. An image processing apparatus comprising: one or more computer processors configured to implement a reduced image generation unit, a gain data generation unit and a determination unit, wherein: the reduced image generation unit is configured to obtain a reduced image by reducing an input image; the gain data generation unit is configured to obtain gain data by associating luminance values for respective pixels with gains in association with a plurality of images, which include the reduced image and have different reduction ratios; and the determination unit is configured to determine a control gain required to amplify the input image based on the generated gain data, and wherein the determination unit determines the control gain based on a first addition result as an addition result of gains corresponding to pixels of interest of first gain data and second gain data, and a second addition result as an addition result of a gain corresponding to the pixel of interest of the first gain data, and a gain based on gains corresponding to pixels of a surrounding region of the pixel of interest in the second gain data, wherein the first gain data for a first image of the plurality of images and the second gain data is data for a second image having a lower frequency than the first image.