JP2009038762A5 - - Google Patents
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- JP2009038762A5 JP2009038762A5 JP2007203406A JP2007203406A JP2009038762A5 JP 2009038762 A5 JP2009038762 A5 JP 2009038762A5 JP 2007203406 A JP2007203406 A JP 2007203406A JP 2007203406 A JP2007203406 A JP 2007203406A JP 2009038762 A5 JP2009038762 A5 JP 2009038762A5
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- index
- correction value
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- evaluation value
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- 238000011156 evaluation Methods 0.000 claims 12
- 206010015150 Erythema Diseases 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 2
- 238000003672 processing method Methods 0.000 claims 2
- 230000000875 corresponding Effects 0.000 claims 1
- 238000003384 imaging method Methods 0.000 claims 1
Claims (8)
前記目領域を複数のブロックに分割する分割手段と、
前記複数のブロックの各々について、ブロックに含まれる画素ごとに、画素の赤さを示す評価値を求める評価値演算手段と、
前記評価値のばらつき度合を示す指標を、前記ブロックごとに求める指標演算手段と、
前記目領域に含まれる個々の画素に対する補正値を、前記画素について演算された前記評価値と、前記指標とに基づいて演算する補正値演算手段と、
前記補正値を前記目領域の画素に適用する補正手段とを有し、
前記補正値演算手段が、前記ばらつき度合の小さいブロック内の画素ほど前記補正値が小さくなるように前記評価値を前記指標に基づいて補正することにより前記補正値を演算することを特徴とする画像処理装置。 Detecting means for detecting an eye area determined to be an eye from the image;
Dividing means for dividing the eye area into a plurality of blocks;
For each of the plurality of blocks, for each pixel included in the block, evaluation value calculation means for obtaining an evaluation value indicating the redness of the pixel;
And index calculating means for calculating an index indicating the degree of variation of the evaluation value, for each front Chivu lock,
Correction value calculation means for calculating a correction value for each pixel included in the eye area based on the evaluation value calculated for the pixel and the index;
Correction means for applying the correction value to the pixels of the eye area,
Image the compensation value calculating means, characterized by calculating the compensation value by correcting on the basis of the evaluation value as the correction value as the pixel is reduced in a small block of the degree of variation in the index Processing equipment.
前記補正値演算手段が、補正値を、対応する画素位置について前記リサイズ手段が求めた前記指標を用いて修正することを特徴とする請求項1記載の画像処理装置。 Resize means for calculating the index for each pixel position of the eye area from the index determined for each block;
The image processing apparatus according to claim 1, wherein the correction value calculation unit corrects the correction value using the index obtained by the resizing unit for a corresponding pixel position.
前記補正値演算手段が、さらに、前記ばらつき度合が前記目領域で最大となる画素位置からの距離が大きい画素ほど前記補正値が小さくなるように修正することを特徴とする請求項2記載の画像処理装置。 Position detecting means for detecting a pixel position where the degree of variation is maximum in the eye area from the index for each pixel position obtained by the resizing means;
3. The image according to claim 2, wherein the correction value calculating unit further corrects the correction value so that the correction value becomes smaller as the distance from the pixel position where the degree of variation is maximum in the eye region is larger. Processing equipment.
分割手段が、前記目領域を複数のブロックに分割する分割工程と、
評価値演算手段が、前記複数のブロックの各々について、ブロックに含まれる画素ごとに、画素の赤さを示す評価値を求める評価値演算工程と、
指標演算手段が、前記評価値のばらつき度合を示す指標を、前記ブロックごとに求める指標演算工程と、
補正値演算手段が、前記目領域に含まれる個々の画素に対する補正値を、前記画素について演算された前記評価値と、前記指標とに基づいて演算する補正値演算工程と、
補正手段が、前記補正値を前記目領域の画素に適用する補正工程とを有し、
前記補正値演算手段は、前記補正値演算工程において、前記ばらつき度合の小さいブロック内の画素ほど前記補正値が小さくなるように前記評価値を前記指標に基づいて補正することにより前記補正値を演算することを特徴とする画像処理方法。 A detection step in which the detection means detects an eye area determined to be an eye from the image;
Dividing means, a dividing step of dividing the eye region into a plurality of blocks,
An evaluation value calculating means for each of the plurality of blocks, for each pixel included in the block, an evaluation value calculating step for obtaining an evaluation value indicating the redness of the pixel;
An index calculation unit that calculates an index indicating the degree of variation of the evaluation value for each block; and
A correction value calculation means for calculating a correction value for each pixel included in the eye area based on the evaluation value calculated for the pixel and the index;
A correction unit, the correction step of applying the correction value to the pixels of the eye region,
The correction value calculating means, said in the correction value calculating step, calculating the correction value by correcting on the basis of the evaluation value as the correction value as the pixel is reduced in a small block of the degree of variation in the index An image processing method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007203406A JP5022811B2 (en) | 2007-08-03 | 2007-08-03 | Image processing apparatus, image processing method, and imaging apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007203406A JP5022811B2 (en) | 2007-08-03 | 2007-08-03 | Image processing apparatus, image processing method, and imaging apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2009038762A JP2009038762A (en) | 2009-02-19 |
JP2009038762A5 true JP2009038762A5 (en) | 2010-09-16 |
JP5022811B2 JP5022811B2 (en) | 2012-09-12 |
Family
ID=40440277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007203406A Expired - Fee Related JP5022811B2 (en) | 2007-08-03 | 2007-08-03 | Image processing apparatus, image processing method, and imaging apparatus |
Country Status (1)
Country | Link |
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JP (1) | JP5022811B2 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4405942B2 (en) * | 2005-06-14 | 2010-01-27 | キヤノン株式会社 | Image processing apparatus and method |
JP2007004455A (en) * | 2005-06-23 | 2007-01-11 | Canon Inc | Image processing apparatus, image processing method, and storage medium recording program |
JP4416724B2 (en) * | 2005-11-07 | 2010-02-17 | キヤノン株式会社 | Image processing method and apparatus |
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2007
- 2007-08-03 JP JP2007203406A patent/JP5022811B2/en not_active Expired - Fee Related
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