add fast image processor for pix2struct 
Author: zhouksh
Pull request: yes


# What does this PR do?

add fast image processor for pix2struct

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Fixes #36978


## Before submitting
- [ ] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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- [x] Did you write any new necessary tests?


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cc @yonigozlan