Image processing apparatus and image processing method

摘要

An image processing apparatus generates first image data based on a first white balance correction value corresponding to a first light source, and second image data based on second white balance correction value corresponding to a second light source, selects one white evaluation region for determining a combination ratio from a plurality of white evaluation regions, compares a color evaluation value of the image data with the selected white evaluation region under the second light source, determines a combination ratio of the first image data and the second image data based on a result of the comparison, and combines the first image data and the second image data according to the determined combination ratio.

主权项

1. An image processing apparatus comprising:
a correction value determination unit configured to determine a first white balance correction value corresponding to a first light source in captured image data and a second white balance correction value corresponding to a second light source in the image data; a generation unit configured to generate first image data by correcting the image data based on the first white balance correction value, and second image data by correcting the image data based on the second white balance correction value; a color evaluation value calculation unit configured to calculate a color evaluation value of the image data; a selection unit configured to select one color evaluation region for determining a combination ratio from a plurality of color evaluation regions; a combination ratio determination unit configured to compare the color evaluation value of the image data with the color evaluation region under the second light source selected by the selection unit, and to determine a combination ratio of the first image data and the second image data based on a result of the comparison; and a combining unit configured to combine the first image data and the second image data according to the combination ratio determined by the combination ratio determination unit.