Method for determining color space of an image

Details Method for determining color space of an image Method for determining color space of an image

2005-08-30

2005-08-30

Bella, Matthew C. (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S590000, C345S591000, C345S593000, C345S595000, C345S604000, C382S170000, C382S172000, C348S222100

Reexamination Certificate

active

06937253

ABSTRACT:
A method for determining whether an input image is defined in accordance with a luminance-chrominance color space, includes receiving an input image in three dimensional color space, S1, S2and S3, where S1is an image value in the first dimension, S2is an image value in the second dimension and S3is an image value in the third dimension; extracting low and high extrema of S1values in the image; obtaining deviation of S2and S3from a predefined neutral axis for all pixels in the image whose S1value is either the low or the high extremum; testing a condition that certain of the deviations are within predetermined thresholds; and determining, if the condition holds true, that the image is in a luminance-chrominance color space.

REFERENCES:
patent: 6744917 (2004-06-01), Sadowski et al.
patent: 2004/0119843 (2004-06-01), Hoshuyama
patent: 2004/0228523 (2004-11-01), Hibi et al.

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