Image processing device and image capturing device that perform demosaic process
AssigneeLAPIS Technology Co., Ltd.
InventorsNaoki Nishitani, Yuki Imatoh
Life of this patent
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Abstract
An image processing device derives an edge component value of a pixel of interest by performing an edge detection process using a brightness of the pixel of interest and brightnesses of peripheral pixels of the pixel of interest of image information including the brightness and a color difference of each pixel, derives an average of the color differences of the pixel of interest and the peripheral pixels, derives a median of the color differences of the pixel of interest and the peripheral pixels, and selects one of the average and the median as the color difference of the pixel of interest by using the edge component value, the average, and the median.
Claims8
An image processing device, comprising:
- a processor, configured to:
- derive an edge component value of a pixel of interest by performing an edge detection process using a brightness of the pixel of interest and brightnesses of peripheral pixels of the pixel of interest of image information comprising the brightness and a color difference of each pixel;
- derive an average of the color differences of the pixel of interest and the peripheral pixels;
- derive a median of the color differences of the pixel of interest and the peripheral pixels;
- and
- select one of the average and the median as the color difference of the pixel of interest by using the edge component value, the average, and the median.
An image capturing device, comprising:
- an image sensor, outputting first image information in which each pixel has a pixel value of a color of a plurality of different colors;
- and
- an image processing device, comprising:
- a processor, configured to:
- generate second image information comprising a brightness and a color difference in each pixel by using the first image information;
- derive an edge component value of a pixel of interest by performing an edge detection process using the brightness of the pixel of interest and the brightnesses of peripheral pixels of the pixel of interest of the second image information;
- derive an average of the color differences of the pixel of interest and the peripheral pixels;
- derive a median of the color differences of the pixel of interest and the peripheral pixels;
- and
- select one of the average and the median as the color difference of the pixel of interest by using the edge component value, the average, and the median.
Dependencies are inferred from the claim text.