Abstract
The invention relates to a method and a device to increase the resolution of an image by interpolating along edges of the image. Edges are detected and their direction is calculated ( 10 ). The interpolation ( 12 ) of new pixels is carried out along the direction of the edges. According to the invention, a pre-filter ( 8 ) is used with a high-pass filtering in the direction in which new pixels are interpolated, and a low-pass filtering in another direction.
| Original language | English |
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| Patent number | US7206027 |
| Publication status | Published - 17 Apr 2007 |