Invention Grant
US08831345B2 Image processing method, image processing apparatus, and image processing program 有权
图像处理方法,图像处理装置和图像处理程序

Image processing method, image processing apparatus, and image processing program
Abstract:
The present invention is an image processing device which has tone mapping curve generation means for local tone correction, which generates a tone mapping curve for local tone correction using the luminance of peripheral areas for each pixel of interest within an input image; prediction means which predicts the overall luminance and/or the contrast of the image after the local tone correction on the basis of the average luminance of partial areas into which the input image has been partitioned; tone mapping curve generation means for global tone correction, which generates a tone mapping curve for global tone correction on the basis of the prediction; and correction means which integrates the tone mapping curve for local tone correction and the tone mapping curve for global tone correction so as to simultaneously execute the local tone correction and the global tone correction.
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