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AIM 2019 RAW to RGB Mapping Challenge - Track 1: Fidelity Forum

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> question about the image resolution

Generally, the mapping from RAW to RGB is from H*W*1 to H*W*3 (or equivalently from 0.5H*0.5W*4 to H*W*3).
But why the training data here is arranged as H*W*4 to H*W*3?

Thanks

Posted by: xiangyu_xu @ July 24, 2019, 10:34 p.m.

You are right - the mapping should be generally from 0.5H*0.5W*4 to H*W*3, but here the size of the target images was decreased by a factor of 2 (from 4092x3018px to 2046x1509px) so that it is possible to process full images on GPU.

Posted by: andrey.ignatoff @ Aug. 4, 2019, 12:51 p.m.

It is weird. Does that mean, we need to train a model to do demosaic+down-sample ...?

Posted by: yexin @ Aug. 12, 2019, 6:49 a.m.
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