Video system with blocking artifact two-dimensional cross filtering

A method of operating a video system comprising:

• analyzing video data, having a block including analyzing a pixel of an adjacent block;
• performing a transition change detection for determining a spatial intensity transition within the block;
• performing a block-wise similarity measurement on the block in the video data for identifying a blocking artifact including identifying a horizontal boundary or a vertical boundary having the blocking artifact includes:
• correlating, by a block correlation processor, the block in the video data including activating an execution array,
• generating a correlation output by the block correlation processor performing a mean squared error calculation by the execution array, and
• stepping an analysis area over an adjacent block bordering to a block being analyzed including activating a storage device by a controller for the execution array;
• and
• filtering, with a two dimensional cross filter, every pixel in the block for removing the blocking artifact including clearing a first column, a last column, a first row, or a last row of the blocking artifact.

A blocking artifact filter system comprising:

• a circuit element for processing video data;
• a blocking artifact detection circuit in the circuit element for determining that a blocking artifact is present within the video data;
• a block-wise similarity checker coupled to the blocking artifact detection circuit for identifying the blocking artifact includes:
• a block correlation processor,
• a correlation output generated by the block correlation processor by a mean squared error calculation performed, and
• a storage device in the block correlation processor for moving an analysis area over an adjacent block in the video data;
• and
• a two dimensional cross filter applied to every pixel in the video data for removing the blocking artifact.