Patent ID: 8203617
Filing Date: 2012-06-19
Classification: H04N

Abstract:
1. A method of processing a digital image in a Mobile Equipment operating in a telecommunications network, the digital image having a frame of data comprising a plurality of pixels with data, the data of each pixel having a luminance value and a chrominance value, the method comprising the steps of: obtaining the chrominance value for a specified pixel of the digital image; responsive to the obtained chrominance value, determining a strength of a filter to be used to filter the luminance value of the specified pixel of digital image, wherein the determining step includes: when the luminance value of the specified pixel is filtered, filtering the luminance value of the specified pixel at the determined strength of the filter; wherein the data is provided in a YCrCb format, where Y is a luminance value, Cr is a red chrominance value, and Cb is a blue chrominance value for each pixel, and the method further comprises: determining whether the absolute value of Cb minus 128 or the absolute value of Cr minus 128 for the specified pixel is greater than a parameter representing lack of color information in the specified pixel; and when it is determined that the absolute value of Cb minus 128 or the absolute value of Cr minus 128 is greater than the parameter, low-pass filtering the luminance value of the specified pixel.