Comments (1)
Instagram filters are more likely the combination of many basic operations. (color adjustments, overlays, algorithms like CLAHE, etc).
MetalPetal contains these basic operations. How to combine them to create wonderful filters is totally up to you.
You can start with "Color Adjustments" by using a color lookup table (with MTIColorLookupFilter
).
Refs:
https://github.com/MetalPetal/MetalPetal/blob/master/MetalPetalDemo/CameraViewController.m
https://developer.nvidia.com/gpugems/GPUGems2/gpugems2_chapter24.html
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