Patent ID: 8553285
Filing Date: 2013-10-08
Classification: G06K,H04N

Abstract:
1. A method for image processing comprising: providing an image data of an image that is comprised of a plurality of pixels; obtaining a first statistical feature amount based on a plurality of pixels sampled by edge pixel sampling which samples pixels having x-y chromaticity within the range of 0.35≦x≦0.40, 0.33≦y≦0.36 from the image; obtaining a second statistical feature amount based on a plurality of pixel data sampled by uniform sampling which samples pixels uniformly from the image, wherein a sampling period ratio of the uniform sampling is determined based on a smaller value among a width and a height of the pixels; and applying a plurality of image processes to the image data to reproduce a converted image data, each image process having an image process strength, wherein the plurality of image processes include at least one of contrast correction, brightness correction and chroma saturation emphasis, wherein intensity of the contrast correction is determined based on the second statistical feature amount, the intensity of the brightness correction is determined based on the first statistical feature amount and the intensity of the chroma saturation emphasis is determined based on the second statistical feature amount, wherein, prior to application of the edge pixel sampling and the uniform sampling, determining whether a pixel is to be sampled by the edge pixel sampling and determining whether the pixel is to be sampled by the uniform sampling, wherein even if the pixel is to be sampled by both the edge pixel sampling and the uniform sampling, a summation of the feature amounts is performed independently for the edge pixel sampling and the uniform sampling, and wherein the edge pixel sampling determination and the uniform sampling determination is made for all pixels which comprise the image.