| 摘要 |
An image processing system processes image data in response to a sequence of image processing steps defined by a process tree (800). The process tree comprises a plurality of interconnected nodes (801-813), including input nodes (801-804) and at least one output node (813). Output rendering is performed a frame at a time, and a frame requirement (824) is passed from the output node to previous nodes (812, 811, 810). Intermediate nodes include requirement processing (823) such that a node (810) having different input and output frame rates can identify and generate a requirement (825) for the input frames (826) as it requires for its processing (821).
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