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Abstract

Methods and systems for reducing the appearance of block-related artifacts are described. The methods include obtaining image frames in a sequence of image frames and adjusting some or all image frames in the sequence of image frames to generate adjusted image frames. The adjusted image frames may be created by generating image data and adding it to one or more edges of the image frame or by discarding image data from the image frame. The adjusted image frames shift a block origin relative to image data in the image frame. The adjusting is performed so that the shift of the block origin varies during the sequence of image frames. A block-based process is applied to each adjusted image frame to generate processed image frames, wherein blocks of image data are selected and processed in each adjusted frame of image data according to the block origin.

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