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US 8,576,310 B2Granted
Image processing apparatus, camera module, and image processing method
AssigneeKabushiki Kaisha Toshiba
InventorYukiyasu Tatsuzawa
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Abstract
According to one embodiment, a second determining unit performs defect determination according to an illumination light component, which is a component of illumination light irradiated onto an object, of pixel values of a plurality of adjacent pixels. A third determining unit performs defect determination according to a reflectivity component, which is a component based on a unique reflectivity of the object, of the pixel values of the plurality of adjacent pixels.
Claims18
An image processing apparatus comprising:
- a defect determining unit determining whether a target pixel is a defect or not, on the basis of a pixel value of the target pixel and pixel values of a plurality of adjacent pixels which are pixels for the same color as the target pixel and are positioned at the periphery of the target pixel, wherein
- the defect determining unit includes:
- a first determining unit performing defect determination by comparing the maximum value and minimum value of the pixel values of the plurality of adjacent pixels with the pixel value of the target pixel;
- a second determining unit performing defect determination according to an illumination light component, which is a component of illumination light irradiated onto an object, of the pixel values of the plurality of adjacent pixels;
- and
- a third determining unit performing defect determination according to a reflectivity component, which is a component based on a unique reflectivity of the object, of the pixel values of the plurality of adjacent pixels.
3 more elements
A camera module comprising:
- a lens unit capturing light from an object;
- an image sensor generating an image signal according to the light captured by the lens unit;
- and
- an image processing apparatus performing image processing on the image signal from the image sensor, wherein
- the image processing apparatus includes
- a defect determining unit determining whether a target pixel is a defect or not, on the basis of a pixel value of the target pixel and pixel values of a plurality of adjacent pixels which are pixels for the same color as the target pixel and are positioned at the periphery of the target pixel, and
- the defect determining unit includes:
- a first determining unit performing defect determination by comparing the maximum value and minimum value of the pixel values of the plurality of adjacent pixels with the pixel value of the target pixel,
- a second determining unit performing defect determination according to an illumination light component, which is a component of illumination light irradiated onto the object, of the pixel values of the plurality of adjacent pixels, and
- a third determining unit performing defect determination according to a reflectivity component, which is a component based on a unique reflectivity of the object, of the pixel values of the plurality of adjacent pixels.
7 more elements
An image processing method comprising:
- performing defect determination to determine whether a target pixel is a defect or not, on the basis of a pixel value of the target pixel and pixel values of a plurality of adjacent pixels which are pixels for the same color as the target pixel and are positioned at the periphery of the target pixel, wherein
- the defect determination includes:
- first determination comparing the maximum value and minimum value of the pixel values of the plurality of adjacent pixels with the pixel value of the target pixel,
- second determination according to an illumination light component, which is a component of illumination light irradiated onto an object, of the pixel values of the plurality of adjacent pixels, and
- third determination according to a reflectivity component, which is a component based on a unique reflectivity of the object, of the pixel values of the plurality of adjacent pixels.
2 more elements
Dependencies are inferred from the claim text.