Patent ID: 8724711

Claim:
A computer-implemented method, comprising: at a video encoder, determining, for a chroma pixel position in a current prediction unit (PU) of an image frame, a textural characteristic of a plurality of luma pixel positions physically adjacent to the chroma pixel position in the image frame; specifying at least one down-sample filter in response to the textural characteristic; and providing information specifying the down-sample filter; and at a video decoder, determining reconstructed luma values for a first plurality of chroma pixel positions of a current prediction unit (PU) in response to luma values of a plurality of luma pixel positions of the current PU; and predicting a chroma value of a first chroma pixel position of the first plurality of chroma pixel positions in response to at least one of a reconstructed luma value of the first chroma pixel position or luma values of a second plurality of chroma pixel positions located adjacent to the first chroma pixel position, wherein the second plurality of chroma pixel positions includes at least some of the first plurality of chroma pixel positions.