Method and system for the reduction of memory capacity required for a digital representation of an image
AssigneeEastman Kodak Company
InventorsJames R. Niederbaumer, John R. D'Errico, Brian T. Pridham
Life of this patent
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Abstract
A method for reducing a bit depth of an image to reduce storage memory, the method comprises the steps of creating a histogram of an image; modifying the histogram so that a maximum slope of a to-be-calculated cumulative histogram will be no greater than substantially 1.0; (c) calculating the cumulative histogram from the modified histogram; and (d) interpreting the cumulative histogram to give a desired bit depth reduction.
Claims42
A method for reducing a bit depth of an image to reduce storage memory, the method comprising the steps of:
- (a) creating a histogram of an image;
- (b) modifying the histogram so that a maximum slope of a to-be-calculated cumulative histogram will be no greater than substantially 1.0;
- (c) calculating the cumulative histogram from the modified histogram;
- and
- (d) interpreting the cumulative histogram to give a desired bit depth reduction.
A computer program product for reducing a bit depth of an image to reduce storage memory, comprising a computer readable storage medium having a computer program stored thereon for performing the steps of:
- (a) creating a histogram of an image;
- (b) modifying the histogram so that a maximum slope of a to-be-calculated cumulative histogram will be no greater than substantially 1.0;
- (c) calculating the cumulative histogram from the modified histogram;
- and
- (d) interpreting the cumulative histogram to give a desired bit depth reduction.
A system for reducing a bit depth of an image to reduce storage memory, the system comprising:
- (a) means for creating a histogram of an image;
- (b) means for modifying the histogram so that a maximum slope of a to-be-calculated cumulative histogram will be no greater than substantially 1.0;
- (c) means for calculating the cumulative histogram from the modified histogram;
- and
- (d) means for interpreting the cumulative histogram to give a desired bit depth reduction.
Dependencies are inferred from the claim text.