Fix MobileNet v1/v2 image processor default interpolation to BICUBIC #43313
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The MobileNet image processors were defaulting to BILINEAR interpolation, but the original timm implementation uses BICUBIC. This change aligns transformers with timm's preprocessing. Contributes to huggingface#28180
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cc @NielsRogge if that issue is still relevant! If not we should close it, since I think a lot of people and code agents are searching for old open issues lately |
Update MobileNetV1ImageProcessorFast and MobileNetV2ImageProcessorFast to use PILImageResampling.BICUBIC instead of BILINEAR, matching the changes made to the slow image processors.
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[For maintainers] Suggested jobs to run (before merge) run-slow: mobilenet_v1, mobilenet_v2 |
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Summary
Fix the default interpolation method for MobileNet v1 and v2 image processors from BILINEAR to BICUBIC, matching the original timm implementation.
Motivation
As part of #28180, we need to verify that image processor interpolation methods match their original implementations. The MobileNet models in timm use BICUBIC interpolation for preprocessing, but the transformers image processors were defaulting to BILINEAR.
Changes
resamplefromPILImageResampling.BILINEARtoPILImageResampling.BICUBICresamplefromPILImageResampling.BILINEARtoPILImageResampling.BICUBICVerification
The timm documentation confirms MobileNet models use bicubic interpolation:
Contributes to #28180