Patent ID: 8514453
Filing Date: 2013-08-20
Classification: H04N

Abstract:
1. A computer implemented method for processing an input high dynamic range (HDR) image to generate an output image to be output by an output device, the method comprising: mapping colors of the input HDR image from a first color space to a second color space using a tone-mapping filter, wherein a predetermined percentage of colors in the second color space are in-range colors having color values falling within an optimized range, and other colors are out-of-range colors having color values falling outside of the optimized range; converting the colors from the second color space to a third color space defined by the output device, including: storing a correlation between the colors of the image in the second color space and the converted colors in the third color space; and for each pixel in the image, converting its color from the second color space to the third color space using the stored correlation, whereby the output image is generated.