Enhancement of Blurred Image Portions
First Claim
1. A method for image enhancement, comprising:
- a first step (41) of distinguishing blurred and non-blurred image portions of an input image, and a second step (42) of enhancing at least one of said blurred image portions of said input image to produce an output image.
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Abstract
This invention relates to a method for image enhancement, comprising a first step (41) of distinguishing blurred and non-blurred image portions of an input image, and a second step (42) of enhancing at least one of said blurred image portions of said input image to produce an output image. Said blurred and non-blurred image portions are for instance distinguished by comparing (416) the differences (415) between a linearly up-scaled (414) version of the down-scaled (411) input image and the input image, and the differences (413) between a non-linearly up-scaled (412) representation of the down-scaled input image and the input image. Said blurred image portion is for instance enhanced by replacing (42) it with a portion of a non-linearly up-scaled representation of the down-scaled input image. The invention also relates to a device, a computer program, and a computer program product.
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Citations
20 Claims
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1. A method for image enhancement, comprising:
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a first step (41) of distinguishing blurred and non-blurred image portions of an input image, and a second step (42) of enhancing at least one of said blurred image portions of said input image to produce an output image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A device (10;
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30) for image enhancement, comprising;
first means (101, 102, 103, 104;
301, 302, 304) arranged for distinguishing blurred and non-blurred image portions of an input image, andsecond means (105;
305) arranged for enhancing at least one of said blurred image portions of said input image to produce an output image. - View Dependent Claims (16, 17, 18, 19, 20)
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30) for image enhancement, comprising;
Specification