发明名称 |
Confidence based weighting for color interpolation |
摘要 |
A color interpolation method uses a first interpolation function (F1) to obtain a first missing color sub-pixel value for a pixel of interest and uses a second interpolation function (F2) to obtain a second missing color sub-pixel value for the pixel of interest. First metric (V) indicative of an edge extending in a first direction (D1) is obtained. Second metric (H) indicative of an edge extending in a second direction (D2) is obtained. The two metrics are used to generate first and second weighting factors (k1, k2). A confidence factor value can be used to place more emphasis on one metric versus the other metric in the determination of the weighting factors. In one embodiment, the sub-pixel value being interpolated is the weighted sum of the first weighting factor multiplied by the first missing color sub-pixel value plus the second weighting factor multiplied by the second missing color sub-pixel value.
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申请公布号 |
US7576783(B2) |
申请公布日期 |
2009.08.18 |
申请号 |
US20050051159 |
申请日期 |
2005.02.04 |
申请人 |
HWANG HAU;LAI KING-CHUNG;KANDHADAI ANANTHAPADMANABHAN |
发明人 |
HWANG HAU;LAI KING-CHUNG;KANDHADAI ANANTHAPADMANABHAN |
分类号 |
H04N5/228 |
主分类号 |
H04N5/228 |
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