IMAGE PROCESSING APPARATUS AND METHOD, AND ELECTRONIC CAMERA
First Claim
1. An image processing apparatus for obtainingcolor image data by performing an interpolation processing for an image signal output from a color image pickup element having color filters arranged like a mosaic, by using a filter, comprising:
- an interpolation processing unit which selectively modifies an interpolation processing according to a kind of layout pattern of a spatial center position of gravity of each color component signal included the image signal in an image area to be interpolated, so that the spatial center position of gravity of each color component signal after the interpolation processing becomes identical in any layout patter, if there are a plurality of kinds of layout pattern of a spatial center position of gravity of each color component signal included the image signal in an image area to be interpolated.
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Abstract
An image processing apparatus obtains color image data by performing an interpolation processing for an image signal output from a color image pickup element having color filters arranged like a mosaic, by using a filter. The apparatus includes an interpolation processing unit which selectively modifies an interpolation processing according to a kind of layout pattern of a spatial center position of gravity of each color component signal included the image signal in an image area to be interpolated, so that the spatial center position of gravity of each color component signal after the interpolation processing becomes identical in any layout patter, if there are a plurality of kinds of layout pattern of a spatial center position of gravity of each color component signal included the image signal in an image area to be interpolated.
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Citations
12 Claims
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1. An image processing apparatus for obtaining
color image data by performing an interpolation processing for an image signal output from a color image pickup element having color filters arranged like a mosaic, by using a filter, comprising: an interpolation processing unit which selectively modifies an interpolation processing according to a kind of layout pattern of a spatial center position of gravity of each color component signal included the image signal in an image area to be interpolated, so that the spatial center position of gravity of each color component signal after the interpolation processing becomes identical in any layout patter, if there are a plurality of kinds of layout pattern of a spatial center position of gravity of each color component signal included the image signal in an image area to be interpolated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic camera comprising:
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a color image pickup element having color filters arranged like a mosaic; and an interpolation processing unit which obtains a color image data by performing an interpolation processing for an image signal output from the color image pickup element, by using a filter, wherein the interpolation processing unit selectively modifies an interpolation processing according to a kind of a layout pattern of a spatial center position of gravity of each color component signal included the image signal in an image area to be interpolated, so that the spatial center position of gravity of each color component signal after the interpolation processing becomes identical in any layout patter, if there are a plurality of kinds of layout pattern of a spatial center position of gravity of each color component signal included the image signal in an image area to be interpolated.
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11. An image processing method for obtaining color image data by performing an interpolation processing for an image signal output from a color image pickup element having color filters arranged like a mosaic, by using a filter, comprising:
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determining whether there are a plurality of kinds of layout pattern of position of spatial center of gravity of each color component signal included the image signal in an image area to be interpolated; and changing an interpolation processing according to a kind of a layout pattern of a spatial center position of gravity of each color component signal included the image signal in an image area to be interpolated, so that the spatial center position of gravity of each color component signal after the interpolation processing becomes identical in any layout patter, if there are a plurality of kinds of layout pattern of a spatial center position of gravity of each color component signal included the image signal in an image area to be interpolated.
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12. An image processing apparatus for performing image processing for an image data digitized from an image signal obtained from an image pickup element having a Bayer arrangement in a pixel addition mode to calculate and output a result of detection of pixel values of two or more same color pixels, comprising:
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a coefficient memory which previously stores a plurality of sets of interpolation filter coefficients; a color layout discriminator which discriminates a color layout in an image area to be interpolated in the image data; a coefficient selector which selects a set of interpolation filter coefficients from the coefficient memory, according to a color layout discriminated by the color layout discriminator; and an interpolation processing unit which performs interpolation processing for the image data of the image area to be interpolated, by using the set of interpolation filter coefficients selected by the coefficient selector, and generates the image data consisting of pixels having all color components.
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Specification