Processing image data

Details Processing image data Processing image data

H - Electricity

04

N

H04N 5/262 (2006.01) G06T 7/00 (2006.01) H04N 5/272 (2006.01) G11B 27/034 (2006.01) G11B 27/34 (2006.01)

Patent

CA 2201682

Image data is processed by identifying a region of substantially constant colour within a first image. Colour variations, in terms of standard deviation about an average colour, are analysed and a similar level of variation is applied to a second image. The first image may be derived from cinematographic film, with colour variations due to film grain. The second image may be a video image or a computer generated image and the application of a similar level of variation may reproduce noise similar to that present within the film due to grain. In this way, it is possible to add grain to non-filmed images so as to match said images to images derived from film.

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