| 发明名称 |
Gain value interpolation |
| 摘要 |
An apparatus, method, and other embodiments associated with performing interpolations to compute gain values that correct for varying spatial intensity are described. In one embodiment, a method includes determining, by an apparatus that processes image data, a gain value for a pixel in the image data for which there is no gain value available in the apparatus, by interpolating related gain values associated with corners of a rectangle bounding the pixel, wherein the interpolating includes determining at least two partial coefficients by interpolating pairs of the related gain values. Noise is filtered from the image data using a noise threshold, and the noise threshold is modified by using the at least two partial coefficients. The method also applies the gain value to the pixel in the image data. |
| 申请公布号 |
US9025057(B1) |
申请公布日期 |
2015.05.05 |
| 申请号 |
US201314107523 |
申请日期 |
2013.12.16 |
| 申请人 |
Marvell International Ltd. |
发明人 |
George Adam;Aldrich Bradley C.;Tsai Ping-Sing |
| 分类号 |
H04N9/64;H04N5/217;G06T5/00 |
主分类号 |
H04N9/64 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method, comprising:
determining, by an apparatus that processes image data, a gain value for a pixel in the image data for which there is no gain value available in the apparatus, by interpolating related gain values associated with corners of a rectangle bounding the pixel, wherein the interpolating includes determining at least two partial coefficients by interpolating pairs of the related gain values; filtering noise from the image data using a noise threshold, and modifying the noise threshold by using the at least two partial coefficients; and applying the gain value to the pixel in the image data. |
| 地址 |
BM |
