Image processing apparatus and image processing method
AssigneeKabushiki Kaisha Toshiba
InventorsRyuji HADA, Yutaka OTA
Life of this patent
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Abstract
According to embodiments, an image processing apparatus includes a line memory that holds one line of image signals, a line buffer that holds an image signal transferred from the line memory, and a signal processing section that generates an output image signal, the distortion of which is corrected, using the image signal stored in the line buffer, wherein the image signal and the output image signal are both RAW image signals, and the signal processing section subjects the image signal to demosaicking processing using a color component identical to the color component of an output pixel.
Claims20
An image processing apparatus comprising:
- a line memory that holds one line of image signals;
- a line buffer that holds an image signal transferred from the line memory;
- and
- a signal processing section that generates an output image signal, distortion of which is corrected, using the image signal stored in the line buffer, wherein
- the image signal and the output image signal are both RAW image signals, and the signal processing section subjects the image signal to demosaicking processing using a color component of an output pixel.
An image processing method comprising:
- holding one line of RAW image signals in a line memory;
- transferring the RAW image signal from the line memory to a line buffer, as appropriate;
- calculating a reference pixel that corresponds to an output pixel to be a correction object of distortion;
- extracting a neighbor pixel necessary to calculate a pixel value of the reference pixel;
- subjecting the extracted neighbor pixel to demosaicking processing using a color component of the output pixel, using the RAW image signal stored in the line buffer;
- calculating a pixel value of the reference pixel using a pixel value of the neighbor pixel subjected to the demosaicking processing;
- and
- outputting the pixel value of the reference pixel as a pixel value of the output pixel.
An image processing apparatus comprising:
- a line memory that holds one line of RAW image signals;
- a line buffer that holds a plurality of lines of RAW image signals transferred from the line memory;
- and
- a signal processing section that corrects distortion of the RAW image signal stored in the line buffer to generate a RAW output image signal, wherein
- the signal processing section calculates a reference pixel corresponding to an output pixel, specifies a neighbor region to correct a pixel value of the reference pixel, and performs demosaicking processing of interpolating the pixel positioned in the neighbor region for a color component identical to a color component of the output pixel.
Dependencies are inferred from the claim text.