Patent Document ID: 9218651
Application ID: 14277481
Patent Status: 1

Claim One:
1. An image processing method for adjusting the luminance and contrast of input image data including a plurality of first pixel values, comprising: generating luminance image data including a plurality of second pixel values from the input image data with using local spatial luminance statistics on the first pixel values included in the input image data; from a preset mapping curve group comprising a plurality of smooth mapping curves, selecting a corresponding smooth mapping curve for each of the second pixel values based on a difference between a respective first pixel value and a generated second pixel value corresponding to said respective first pixel value; and generating adjusted image data including a plurality of adjusted pixel values by adjusting the plurality of second pixel values included in the luminance image data using the selected smooth mapping curve so that a dynamic range of each of the adjusted pixel values included in the adjusted image data is gradually decreased or increased.