Pixel interpolation method
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United States of America Patent
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Nov 18, 2008
Grant Date -
Sep 21, 2006
app pub date -
Jul 7, 2005
filing date -
Mar 17, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for interpolating image data captured by an electronic imaging device having a Bayer arrangement, by pixel interpolation involving interpolating interpolation pixel X33 (a green pixel), determining the average value of the neighboring pixels situated peripherally to the interpolation pixel X33 by equation (1), and determining the median values of the green pixels in the horizontal direction, the oblique direction and the reverse oblique direction including the interpolation pixel X33 by equations (2), (3) and (4), respectively: ave=(G22+G24+G42+G44)/4; (1) horiz=median(G31, (G22+G42)/2, (G24+G44)/2, G35); (2) Slash=median(G15, G24, G42, G51); and (3) Bslash=median(G11, G22, G44, G55). (4)The value of these median values having the smallest differential with respect to the average value is taken to be the pixel data for the green pixel situated at the position of X33.
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