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US 2003/0194128 A1Published application
Methodology for color correction with noise regulation
AssigneeIntel Corporation
InventorsYap-Peng Tan, Tinku Acharya
Life of this patent
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Abstract
A method comprising determining an optimal color correction matrix accounting for both total noise variance and color reproduction error for a captured image; and correcting the colors of said captured image using said optimal color correction matrix.
Claims35
A method comprising:
- computing an image noise level for a captured image;
- determining a substantially optimal color correction matrix accounting for both total noise variance and color reproduction error for the captured image, wherein the total noise variance includes the computed image noise level;
- and
- correcting the colors of said captured image using said substantially optimal color correction matrix.
1 more element
An article comprising a computer readable medium having instructions stored thereon which when executed causes:
- computing an image noise level for a captured image;
- determining a substantially optimal color correction matrix accounting for both total noise variance and color reproduction error for the captured image, wherein the total noise variance includes the computed image noise level;
- and
- correcting the colors of said captured image using said substantially optimal color correction matrix.
1 more element
A system comprising:
- a memory configured to store instructions and data;
- and
- a processor coupled to said memory said processor adapted to execute said instructions in conjunction with said data to cause:
- computing an image noise level for a captured image;
- determining a substantially optimal color correction matrix accounting for both total noise variance and color reproduction error for the captured image, wherein the total noise variance includes the computed image noise level;
- and
- correcting the colors of said captured image using said substantially optimal color correction matrix
4 more elements
A method comprising:
- determining a preferred weighting factor that properly weights the level of color reproduction error and total noise variance error for a captured image;
- wherein said determining a preferred weighting factor includes:
- generating a test color correction matrix using said preferred weighting factor;
- applying said test color correction matrix to said captured image;
- and
- evaluating the color error and a post-correction noise level after said application of said test color correction matrix to said captured image.
3 more elements
An article comprising a computer readable medium having instructions stored thereon which when executed causes:
- determining a preferred weighting factor that properly weights the level of color reproduction error and total noise variance error for a captured image;
- wherein said determining a preferred weighting factor includes:
- generating a test color correction matrix using said preferred weighting factor;
- applying said test color correction matrix to said captured image;
- and
- evaluating the color error and a post-correction noise level after said application of said test color correction matrix to said captured image.
3 more elements
A system comprising:
- a memory configured to store instructions and data;
- and
- a processor coupled to said memory said processor adapted to execute said instructions in conjunction with said data to cause:
- determining a preferred weighting factor that properly weights the level of color reproduction error and total noise variance error for a captured image;
- wherein said determining a preferred weighting factor includes:
- generating a test color correction matrix using said preferred weighting factor;
- applying said test color correction matrix to said captured image;
- and
- evaluating the color error and a post-correction noise level after said application of said test color correction matrix to said captured image.
6 more elements
Dependencies are inferred from the claim text.