Method and system for the reduction of memory capacity required for a digital representation of an image
AssigneeEastman Kodak Company
InventorsJames E. Adams, Kevin E. Spaulding, Kenneth A. Parulski
Life of this patent
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Abstract
A method for compressing a first bit digital input representative of first pixel data into a second bit digital output representative of second pixel data, the method comprises the steps of defining a logarithmic function for converting the first bit digital input into the second bit digital output; replacing a portion of the logarithmic function with a polynomial function; and compressing the first bit digital input into the second bit digital output by utilizing the logarithmic and polynomial function.
Claims28
A method for compressing a first predetermined bit digital input representative of an image into a second predetermined bit digital output representative of the image, the method comprising the steps of:
- (a) defining a logarithmic function for converting the first predetermined bit digital input into the second predetermined bit digital output;
- (b) replacing a portion of the logarithmic function with a polynomial function for forming a resulting function which is continuous in value and slope;
- (c) compressing the first predetermined bit digital input into the second predetermined bit digital output, via a processor, by utilizing the logarithmic and polynomial function which compressing reduces the required storage capacity for storing the image.
A system for compressing a first predetermined bit digital input representative of an image into a second predetermined bit digital output representative of the image, the system comprises:
- (a) means for defining a logarithmic function for converting the first predetermined bit digital input into the second predetermined bit digital output, replacing a portion of the logarithmic function with a polynomial function for forming a resulting function which is continuous in value and slope, and compressing the first predetermined bit digital input into the second predetermined bit digital output by utilizing the logarithmic and polynomial function;
- and
- (b) means, in electronic communication with said defining means, for forming a cross reference between the first predetermined bit digital input and the second predetermined bit digital output which cross referencing reduces storage capacity for storing the image.
A system for compressing a first predetermined bit digital input representative of an image into a second predetermined bit digital output representative of the image, the system comprising:
- (a) means for defining a logarithmic function for converting the first predetermined bit digital input into the second predetermined bit digital output;
- (b) means for replacing a portion of the logarithmic function with a polynomial function for forming a resulting function which is continuous in value and slope;
- and
- (c) means for compressing the first predetermined bit digital input into the second predetermined bit digital output by utilizing the logarithmic and polynomial function which reduces storage capacity for storing the image.
Dependencies are inferred from the claim text.