System and method for dynamically enhanced colour space
AssigneeJaldi Semiconductor Corp.
InventorsG. Finn Wredenhagen, Peter Ang
Life of this patent
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Abstract
Contrast in an image is enhanced by mapping an input intensity value to an output intensity value in accordance with a mapping function. A mean intensity value of the image is determined. Co-ordinates of the mapping function are calculated in accordance with the mean intensity value and a plurality of predefined parameters. The mapping function is applied to the input intensity value for determining the output intensity, wherein the mapping function is generated dynamically for each image.
Claims16
A method for enhancing contrast in an image by mapping an input intensity value to an output intensity value in accordance with a mapping function, said method comprising the steps of:
- (a) determining a mean intensity value of said image;
- (b) calculating co-ordinates of said mapping function in accordance with said mean intensity value and a plurality of predefined parameters;
- and
- (c) applying said mapping function to said input intensity value for determining said output intensity;
- wherein said mapping function is generated dynamically for each image.
A system for enhancing contrast in an image by mapping an input intensity value to an output intensity value in accordance with a mapping function, said system comprising:
- (a) a histogram comprising a plurality of counters, comparators, and control logic for determining a mean intensity value;
- and
- (b) a processor for calculating co-ordinates of said mapping function in accordance with said mean intensity value and a plurality of predefined parameters, and for applying said mapping function to said input intensity value for determining said output intensity;
- wherein said mapping function is generated dynamically for each image.
Dependencies are inferred from the claim text.