Method and system for selectively applying enhancement to an image
AssigneeEastman Kodak Company
InventorsJiebo Luo, Andrew C. Gallagher, Amit Singhal, Robert T. Gray
Life of this patent
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Abstract
A method for processing a digital color image includes the steps of: providing a subject matter detector for distinguishing between target and background subject matters; applying the subject matter detector to the image to produce a belief map indicating the degree of belief that pixels in the image belong to target subject matter; providing an image enhancement operation that is responsive to a control signal for controlling the degree of image enhancement; and applying image enhancement to the digital image by varying the control signal according to the belief map to produce an enhanced image.
Claims33
A method for processing a digital image, comprising the steps of:
- applying a subject matter detector to the digital image to produce a belief map of values indicating the degree of belief that pixels in the digital image belong to target subject matter, said values defining a plurality of belief regions;
- determining the sizes of each of said belief regions in said belief map;
- enhancing the digital image, said enhancing varying pixel by pixel in accordance with both the degree of belief and the size of the respective said belief region.
A system for processing a digital image, comprising:
- a subject matter detector distinguishing between target and background subject matters in the digital image to produce a belief map of values indicating the degree of belief that pixels in the digital image belong to target subject matter, said values defining a plurality of belief regions;
- and
- a belief map analyzer determining sizes of said belief regions;
- an image enhancement operator enhancing said digital image, said image enhancement operator controlling the degree of image enhancement pixel by pixel, in accordance with both the degree of belief and the size of the respective said belief region.
A method for processing a digital image, comprising the steps of:
- applying a subject matter detector to the digital image to produce a belief map of values indicating the degree of belief that pixels in the digital image belong to target subject matter;
- determining the location and size of each of a plurality of belief regions in said belief map;
- enhancing the digital image, said enhancing varying pixel by pixel in accordance with the degree of belief the size and the location of the respective said belief region.
A method for processing a digital image, comprising the steps of:
- providing a subject matter detector for distinguishing between target and background subject matters;
- applying the subject matter detector to the image to produce a belief map of values indicating the degree of belief that pixels in the image belong to target subject matter;
- analyzing the belief map to generate a control signal;
- providing an image enhancement operation that is responsive to the control signal for controlling the degree of image enhancement;
- and
- applying image enhancement operation to the digital image by varying the control signal pixel by pixel according to the belief map to produce an enhanced image;
- wherein the analyzing includes determining the location and size of each belief region within said belief map and enhancing the control signal based on the locations.
A method for processing a digital image, comprising the steps of:
- providing a subject matter detector for distinguishing between target and background subject matters;
- applying the subject matter detector to the image to produce a belief map of values indicating the degree of belief that pixels in the image belong to target subject matter, said values defining a plurality of belief regions;
- analyzing the belief map to generate a control signal;
- providing an image enhancement operation that is responsive to the control signal for controlling the degree of image enhancement;
- and
- applying image enhancement operation to the digital image by varying the control signal pixel by pixel according to the belief map to produce an enhanced image;
- wherein the analyzing includes determining the size of each belief region and enhancing the control signal based on the size.
Dependencies are inferred from the claim text.