Integrated circuit having a circuit for and method of providing intensity correction for a video

A method of providing intensity correction for frames of a video, the method comprising:

• evaluating a portion of a frame of the video;
• determining a difference in intensity of a current block of the frame with the corresponding block of a previous frame;
• correcting the current block of the frame using a global gain factor if the difference in intensity of the current block of the frame and the corresponding block of the previous frame is less than a predetermined threshold or the global gain factor is within a predetermined range;
• determining a difference in intensity of the current block of the frame and the corresponding block of the previous frame after correcting the current block of the frame using the global gain factor;
• and
• determining whether to correct the current block of the frame using local intensity correction.

An integrated circuit having a circuit for providing intensity correction for frames of a video, the integrated circuit comprising:

• a buffer coupled to receive frames of data associated with the video;
• a processor coupled to the buffer, the processor analyzing a portion of a frame of the video, wherein the processor corrects all of the blocks of the frame with local intensity correction if the difference in the intensity of a corrected portion of the current frame and a corresponding portion of the previous frame is greater than a predetermined threshold and a global gain factor is outside a predetermined range;
• and
• a memory coupled to the processor, the memory receiving corrected intensity coefficients for the frame generated by the processor.