Comments (3)
I think resolution of image is not so important. For example, models/ukbench
is trained on ukbench dataset. This dataset contains 640x480 images. In my benchmark, ukbench model's performance is very close to photo model's performance.
If you trying to train a denoising model, be careful of JPEG setting of dataset. chroma-subsampling=4:4:4
and quality>95
is may be required.
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Thanks! How do you measure model performance?
If I understand correctly the feature set is more important then image size. Lets say we train a model_portrait for portraits (5000 images), one model_nature for nature (5000 images) and a model_portrait_nature (superset of 10000 images). Would model_portrait_nature have same/ better/ worse performance as the individual models?
Also would you expect e.g. model_portrait that is specificallyl trained on portraits to be significantly better in upscaling portraits compared to ukbench?
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I used tools/benchmark.lua
for benchmark. It shows PSNR and MSE. baseline
is Bicubic.
$ th tools/benchmark.lua -model1_dir models/ukbench -model2_dir models/photo -method scale -dir /path/to/benchmark/dataset
99/99; baseline_rmse=13.559323, model1_rmse=9.934793, model2_rmse=9.884656, baseline_psnr=26.851980, model1_psnr=30.009167, model2_psnr=30.056692
At the very least, models/anime_style_art_rgb
makes obviously different result from models/photo
.
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