Macropixel processing system, method and article
AssigneeSTMicroelectronics (Grenoble 2) SAS
InventorsMathieu Thivin, Stephane Drouard
Life of this patent
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Abstract
Digital image processing circuitry converts images in a color filter array (CFA) color space to images in a luminance-chrominance (YUV) 4:2:0 color space, and the images in the YUV 4:2:0 color space are processed by the digital image processing circuitry in the YUV 4:2:0 color space, for example, to apply noise filtering, etc. The converting includes simultaneously receiving pixel data defining a macro-pixel in the CFA color space. The processing in the YUV color space is applied on a macro-pixel level to the macro-pixel of the image in the YUV color space.
Claims21
A method, comprising:
- converting, using image processing circuitry, a macro-pixel defined in a first color space to a macro-pixel defined in a luminance-chrominance YUV 4:2:0 color space, wherein a macro-pixel comprises at least two pixel rows and at least two pixel columns and the converting includes simultaneously receiving pixel data defining the macro-pixel in the first color space;
- and
- applying, on a macro-pixel level and using the image processing circuitry, at least one operation to the macro-pixel in the YUV 4:2:0 color space.
A device, comprising:
- conversion circuitry configured to convert a macro-pixel defined in a first color space to a macro-pixel defined in a luminance-chrominance (YUV) 4:2:0 color space, wherein the macro-pixel comprises at least two pixel rows and at least two pixel columns and the conversion circuitry simultaneously receives pixel data defining the macro-pixel in the first color space;
- and
- YUV processing circuitry configured to perform at least one operation on the macro-pixel in the YUV 4:2:0 color space, wherein each operation of the at least one operation is applied on a macro-pixel level.
A system, comprising:
- one or more image capture devices, which, in operation, capture digital images;
- and
- digital image processing circuitry, which, in operation:
- converts, using image processing circuitry, a macro-pixel defined in a first color space to a macro-pixel defined in a luminance-chrominance YUV 4:2:0 color space, wherein the macro-pixel comprises at least two pixel rows and at least two pixel columns and the converting includes simultaneously receiving pixel data defining the macro-pixel in the first color space;
- and
- applies, on a macro-pixel level and using the image processing circuitry, at least one operation to the macro-pixel in the YUV 4:2:0 color space.
A non-transitory computer-readable medium having contents which cause digital image processing circuitry to process digital images by:
- converting a macro-pixel defined in a first color space to a macro-pixel defined in a luminance-chrominance YUV 4:2:0 color space, wherein the macro-pixel comprises at least two pixel rows and at least two pixel columns and the converting includes simultaneously receiving pixel data defining the macro-pixel in the first color space;
- and
- applying, on a macro-pixel level, at least one operation to the macro-pixel in the YUV 4:2:0 color space.
Dependencies are inferred from the claim text.