IMAGING DEVICE, IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, PROGRAM FOR IMAGE PROCESSING METHOD, AND RECORDING MEDIUM HAVING PROGRAM FOR IMAGE PROCESSING METHOD RECORDED THEREON
First Claim
Patent Images
1. :
- An image capture apparatus, comprising;
an image capture section that outputs raw data;
a converting section that serially sets each interest pixel onto a mosaic image formed of the raw data and that converts a pixel value of the interest pixel into a pixel value for noise removal based on a processing reference pixel value having a unified color signal component in each interest pixel;
a noise removing section that removes noise from the pixel value for noise removal;
a reversely converting section that converts the pixel value for noise removal with noise removed in the noise removing section into a source pixel value by executing an inverse process relative to the process performed in the converting section; and
a demosaicing section that generates full color image data by executing a demosaicing process of a mosaic image formed from the image values processed in the reversely converting section.
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Abstract
A method and apparatus to remove color noise included in raw data while effectively preventing image quality degradation. For Interest pixels serially set onto a mosaic image formed of raw data, conversion is executed into a pixel value for noise removal based on a processing reference pixel value having a unified color signal component in each interest pixel, noise is removed from the pixel value for noise removal, and the pixel value for noise removal with noise removed is converted into the source pixel value, whereby only color noise can be removed without affecting a luminance signal.
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Citations
17 Claims
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1. :
- An image capture apparatus, comprising;
an image capture section that outputs raw data; a converting section that serially sets each interest pixel onto a mosaic image formed of the raw data and that converts a pixel value of the interest pixel into a pixel value for noise removal based on a processing reference pixel value having a unified color signal component in each interest pixel; a noise removing section that removes noise from the pixel value for noise removal; a reversely converting section that converts the pixel value for noise removal with noise removed in the noise removing section into a source pixel value by executing an inverse process relative to the process performed in the converting section; and a demosaicing section that generates full color image data by executing a demosaicing process of a mosaic image formed from the image values processed in the reversely converting section. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- An image capture apparatus, comprising;
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8. :
- An image processing apparatus that suppresses noise of raw data serially acquired in a pixel array of an imaging device, the apparatus comprising;
a converting section that serially sets each interest pixel onto a mosaic image formed of the raw data and that converts a pixel value of the interest pixel into a pixel value for noise removal based on a processing reference pixel value having a unified color signal component in each interest pixel; a noise removing section that removes noise from the pixel value for noise removal; and a reversely converting section that converts the pixel value for noise removal with noise removed in the noise removing section into the source pixel value by executing an inverse process relative to the process performed in the converting section.
- An image processing apparatus that suppresses noise of raw data serially acquired in a pixel array of an imaging device, the apparatus comprising;
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9. :
- An image processing method that suppresses noise of raw data serially acquired in a pixel array of an imaging device, the method comprising;
a converting that serially sets each interest pixel onto a mosaic image formed of the raw data and that converts a pixel value of the interest pixel into a pixel value for noise removal based on a processing reference pixel value having a unified color signal component in the interest pixel; a noise removing that removes noise from the pixel value for noise removal; and a reversely converting that converts the pixel value for noise removal with noise removed in the noise removing into the respective source pixel value by executing an inverse process relative to the process performed in the converting.
- An image processing method that suppresses noise of raw data serially acquired in a pixel array of an imaging device, the method comprising;
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10. :
- A program for an image processing method that suppresses noise of raw data serially acquired in a pixel array of an imaging device, the program comprising;
a converting that serially sets each interest pixel onto a mosaic image formed of the raw data and that converts a pixel value of the interest pixel into a pixel value for noise removal based on a processing reference pixel value having a unified color signal component in each interest pixel; a noise removing that removes noise from the pixel value for noise removal; and a reversely converting that converts the pixel value for noise removal with noise removed in the noise removing into the source pixel value by executing an inverse process relative to the process performed in the converting.
- A program for an image processing method that suppresses noise of raw data serially acquired in a pixel array of an imaging device, the program comprising;
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11. A recording medium recording thereon a program for executing an image processing method that suppresses noise of raw data serially acquired in a pixel array of an imaging device, the program comprising:
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a converting that serially sets each interest pixel onto a mosaic image formed of the raw data and that converts a pixel value of the interest pixel into a pixel value for noise removal based on a processing reference pixel value having a unified color signal component in each interest pixel; a noise removing that removes noise from the pixel value for noise removal; and a reversely converting that converts the pixel value for noise removal with noise removed in the noise removing into the source pixel value by executing an inverse process relative to the process performed in the converting.
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12. :
- An image capturing apparatus comprising;
an image capture section that outputs raw data including a first pixel having a first color component and a second pixel having a second color component; a first conversion section that converts said second pixel into a pixel for noise removal based on a processing reference pixel generated based on the first pixel, a spatial position of said processing reference pixel corresponding to said second pixel; a noise removing section that removes noise from the noise removal pixel; a second conversion section that converts the noise removal pixel from said noise removing section into a pixel having said second color component; and a full color image generating section that generates full color image data based on the pixel from the full color image generating section and the first pixel. - View Dependent Claims (13, 14)
- An image capturing apparatus comprising;
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15. :
- An image processing apparatus for reducing noise from raw data including a first pixel having a first color component and a second pixel having a second color component, comprising;
a first conversion section that converts said second pixel into a pixel for noise removal based on a processing reference pixel generated based on the first pixel, a spatial position of said processing reference pixel corresponding to said second pixel; a noise removing section that removes noise from the noise removal pixel; a second conversion section that converts the noise removal pixel from said noise removing section into a pixel having said second color component; and a full color image generating section that generates full color image data based on the pixel from the full color image generating section and the first pixel. - View Dependent Claims (16, 17)
- An image processing apparatus for reducing noise from raw data including a first pixel having a first color component and a second pixel having a second color component, comprising;
Specification