| 摘要 |
<p>Disclosed embodiments provide for a an image signal processing system 32 that includes back-end pixel processing unit 120 that receives pixel data after being processed by at least one of a front-end pixel processing unit 80 and a pixel processing pipeline 82. In certain embodiments, the back-end processing unit 120 receives luma/chroma image data and may be configured to apply face detection operations, local tone mapping, bright, contrast, color adjustments, as well as scaling. Further, the back-end processing unit 120 may also include a back-end statistics unit 2208 that may collect frequency statistics. The frequency statistics may be provided to an encoder 118 and may be used to determine quantization parameters that are to be applied to an image frame.</p> |
