Image processing using a bilateral grid
OwnerAndre Leitaoinventor
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Abstract
A method of processing a digital image. The method comprises: populating (100) a bilateral grid (10) comprising a plurality of cells (20), based on information obtained from the image, each cell comprising at least one value; then cumulatively integrating (110) the at least one value over the bilateral grid to form an integrated grid comprising integrated values; generating (120) a modified bilateral grid, comprising computing the sum of the at least one value over a predetermined rectangular box of cells of the bilateral grid, by using the integrated values corresponding to the corners of the box; and slicing (130) the modified bilateral grid to generate an output image.
Claims13
A method of processing a digital image, comprising:
- populating a bilateral grid comprising a plurality of cells, based on information obtained from the image, each cell comprising at least one value;
- cumulatively integrating the at least one value over the bilateral grid to form an integrated grid comprising integrated values;
- and
- generating a modified bilateral grid, comprising computing the sum of the at least one value over a predetermined rectangular box of cells of the bilateral grid, by using the integrated values corresponding to the corners of the box.
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An apparatus that processes a digital image, comprising:
- a memory, adapted to store a bilateral grid comprising a plurality of cells, each cell comprising at least one value;
- and
- a processor, adapted to
- populate the bilateral grid based on information obtained from the image;
- cumulatively integrate the at least one value over the bilateral grid to form an integrated grid comprising integrated values;
- and
- generate a modified bilateral grid, comprising computing the sum of the at least one value over a predetermined rectangular box of cells of the bilateral grid, by using the integrated values corresponding to the corners of the box.
Dependencies are inferred from the claim text.