IMAGING APPARATUS, IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND RECORDING MEDIUM THAT RECORDS IMAGE PROCESSING PROGRAM
First Claim
1. An imaging apparatus comprising a solid-state image sensor with Bayer array structure in which a first line, where red pixels and first green pixels are alternately arranged in a horizontal direction, and a second line, where blue pixels and second green pixels are alternately arranged in the horizontal direction, are alternately arranged in a vertical direction, the imaging apparatus comprising:
- a calculation circuit configured to calculate a first value and a second value, for each predetermined image area of image data output from the solid-state image sensor, the first value being a mean value or integrated value of pixel values of the first green pixels, the second value being a mean value or integrated value of pixel values of the second green pixels;
an interpolation operating circuit configured to perform, for a plurality of the image areas, an interpolation operation by using the first values and the second values such that a first center of gravity represented by each of the first values and a second center of gravity represented by each of the second values match each other; and
a G-step detecting circuit configured to calculate a difference between the first value and the second value interpolated.
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Accused Products
Abstract
An imaging apparatus includes a solid-state image sensor with Bayer array structure. The imaging apparatus includes a calculation circuit, an interpolation operating circuit, and a G-step detecting circuit. The calculation circuit calculates a first value and a second value, for each predetermined image area of image data output from the solid-state image sensor. The first value is a mean value or integrated value of pixel values of first green pixels. The second value is a mean value or integrated value of pixel values of second green pixels. The interpolation operating circuit performs, for a plurality of the image areas, an interpolation operation by using a plurality of the first values and a plurality of the second values.
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11 Claims
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1. An imaging apparatus comprising a solid-state image sensor with Bayer array structure in which a first line, where red pixels and first green pixels are alternately arranged in a horizontal direction, and a second line, where blue pixels and second green pixels are alternately arranged in the horizontal direction, are alternately arranged in a vertical direction, the imaging apparatus comprising:
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a calculation circuit configured to calculate a first value and a second value, for each predetermined image area of image data output from the solid-state image sensor, the first value being a mean value or integrated value of pixel values of the first green pixels, the second value being a mean value or integrated value of pixel values of the second green pixels; an interpolation operating circuit configured to perform, for a plurality of the image areas, an interpolation operation by using the first values and the second values such that a first center of gravity represented by each of the first values and a second center of gravity represented by each of the second values match each other; and a G-step detecting circuit configured to calculate a difference between the first value and the second value interpolated. - View Dependent Claims (2, 3, 4, 5)
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6. An image processing apparatus comprising:
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a calculation circuit configured to calculate a first value and a second value, for each predetermined image area of image data output from a solid-state image sensor with Bayer array structure in which a first line, where red pixels and first green pixels are alternately arranged in a horizontal direction, and a second line, where blue pixels and second green pixels are alternately arranged in the horizontal direction, are alternately arranged in a vertical direction, the first value being a mean value or integrated value of pixel values of the first green pixels and the second value being a mean value or integrated value of pixel values of the second green pixels; an interpolation operating circuit configured to perform, for a plurality of the image areas, an interpolation operation by using a plurality of the first values and a plurality of the second values such that a first center of gravity represented by each of the first values and a second center of gravity represented by each of the second values match each other; and a G-step detecting circuit configured to calculate a difference between the first value and the second value interpolated. - View Dependent Claims (7)
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8. An image processing method comprising:
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calculating a first value and a second value, for each predetermined image area of image data output from a solid-state image sensor with Bayer array structure in which a first line, where red pixels and first green pixels are alternately arranged in a horizontal direction, and a second line, where blue pixels and second green pixels are alternately arranged in the horizontal direction, are alternately arranged in a vertical direction, the first value being a mean value or integrated value of pixel values of the first green pixels and the second value being a mean value or integrated value of pixel values of the second green pixels; performing an interpolation operation by using a plurality of the first values and a plurality of the second values calculated for a plurality of the image areas such that a first center of gravity represented by each of the first values and a second center of gravity represented by each of the seconds match each other; and calculating a difference between the first value and the second value interpolated by the interpolation operation. - View Dependent Claims (9)
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10. A computer readable recording medium that records an image processing program for causing a computer to execute:
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calculating a first value and a second value, for each predetermined image area of image data output from a solid-state image sensor with Bayer array structure in which a first line, where red pixels and first green pixels are alternately arranged in a horizontal direction, and a second line, where blue pixels and second green pixels are alternately arranged in the horizontal direction, are alternately arranged in a vertical direction, the first value being a mean value or integrated value of pixel values of the first green pixels and a second value being a mean value or integrated value of pixel values of the second green pixels; performing an interpolation operation by using a plurality of the first values and a plurality of the second values calculated for a plurality of the image areas such that a first center of gravity represented by each of the plurality of the first values and a second center of gravity represented by each of the plurality of the second values match each other; and calculating a difference between the first value and the second value interpolated by the interpolation operation. - View Dependent Claims (11)
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Specification