Patent ID: 7719619
Filing Date: 2010-05-18
Classification: H04N

Abstract:
1. An image processing apparatus comprising: a detection unit that analyzes a received video signal to detect a frequency of each of a plurality of luminance areas with a luminance at least equal to or lower than a predetermined luminance; and a black stretch processing unit that performs black stretch processing using the frequency of each of said plurality of luminance areas detected by said detection unit, wherein: said black stretch processing unit controls a level of a luminance signal in a black stretch range that varies according to the frequency of each of said plurality of detected luminance areas; and the black stretch range, calculated when a first luminance area with a luminance equal to or lower than the predetermined luminance has a first frequency and a second luminance area with a luminance higher than that of the first luminance area has a second frequency, is larger than the black stretch range calculated when the first luminance area has the first frequency and the second luminance area has a third frequency higher than the second frequency.