FIELD: physics, computer engineering.
SUBSTANCE: invention relates to digital imaging devices and particularly to systems and a method of processing image data obtained using the image sensor of a digital imaging device. An image signal processing system includes a pixel final processing unit, a pixel preprocessing unit and a pixel processing conveyor. The final processing unit receives pixel data of image brightness/chrominance after processing by one of the preprocessing unit and processing conveyor. The final processing unit is configured to apply a facial detection operation, local tone mapping, brightness, contrast and colour control, as well as scaling. The final processing unit also includes a final statistics processing unit which collects frequency statistics. The frequency statistics are provided to an encoder and used to determine sampling parameters to be applied to an image frame.
EFFECT: improved outward appearance of an image, achieved by increasing definition of the image without noise or artefacts.
20 cl, 142 dwg, 5 tbl
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Authors
Dates
2015-02-27—Published
2011-08-31—Filed