Image processing device, image processing method, and image pickup device
AssigneeSony Corporation
InventorAkira Sugiyama
Life of this patent
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Abstract
Disclosed herein is an image processing device including a subband dividing section configured to perform subband division of image data of a color whose pixel positions are alternately shifted from each other, the image data being included in image data output from an image pickup element of a pixel arrangement in which the pixel positions of at least one color of three primary colors are alternately shifted from each other in one of a horizontal direction and a vertical direction, with pixels of two upper and lower lines adjacent to each other or pixels of two left and right columns adjacent to each other as a unit.
Claims10
An image processing device comprising:
- a subband dividing section configured to (a) perform subband division of color image data having alternately shifted pixel positions, the color image data being included in pickup image data output from an image pickup element having pixel positions of respective ones of three primary colors alternately shifted from each other in a horizontal direction or a vertical direction, with pixels of two upper and lower horizontal lines adjacent to each other or pixels of two left and right vertical columns adjacent to each other as a unit, the subband division not being performed on color image data not having said alternately shifted pixel positions;
- and
- (b)(i) scan pixels of the unit of two adjacent upper and lower lines to perform a wavelet transform in the horizontal direction, or (ii) scan pixels of the unit of two adjacent left and right columns to perform a wavelet transform in the vertical direction.
An image processing method comprising the step of:
- (a) performing, by a subband dividing section of an image processing device, subband division of color image data having alternately shifted pixel positions, the color image data being included in pickup image data output from an image pickup element having pixel positions of respective ones of three primary colors alternately shifted from each other in a horizontal direction or a vertical direction, with pixels of two upper and lower horizontal lines adjacent to each other or pixels of two left and right vertical columns adjacent to each other as a unit, the subband division not being performed on color image data not having said alternately shifted pixel positions;
- and
- (b)(i) scanning pixels of the unit of two adjacent upper and lower lines to perform a wavelet transform in the horizontal direction, or (ii) scanning pixels of the unit of two adjacent left and right columns to perform a wavelet transform in the vertical direction.
An image processing device comprising:
- subband dividing means for (a) performing subband division of color image data having alternately shifted pixel positions, the color image data being included in pickup image data output from an image pickup element having pixel positions of respective ones of three primary colors alternately shifted from each other in a horizontal direction or a vertical direction, with pixels of two upper and lower horizontal lines adjacent to each other or pixels of two left and right vertical columns adjacent to each other as a unit, the subband division not being performed on color image data not having said alternately shifted pixel positions;
- and
- (b)(i) for scanning pixels of the unit of two adjacent upper and lower lines to perform a wavelet transform in the horizontal direction, or (ii) for scanning pixels of the unit of two adjacent left and right columns to perform a wavelet transform in the vertical direction.
Dependencies are inferred from the claim text.