Image processing apparatus capable of generating composite video image, control method therefor, and storage medium storing control program therefor
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United States of America Patent
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Sep 13, 2016
Grant Date -
Oct 1, 2015
app pub date -
Mar 27, 2015
filing date -
Mar 31, 2014
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Abstract
An image processing apparatus capable of obtaining a sufficient HDR effect while keeping smoothness of an appearance of a video image in an HDR composition process. A first computation unit finds a first composition ratio of frames of images that are continuously taken at mutually different exposures based on luminance of at least one of the frames of images. A second computation unit finds a second composition ratio of the frames of images based on the luminance difference between the frames of images. A third computation unit finds a third composition ratio as a final composition ratio for compositing the frames of images based on the first composition ratio, the second composition ratio, and shutter speed at a time of taking the frames of images. A composition unit generates one frame of an image by compositing the frames of images based on the third composition ratio.
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