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GuoShi28 / CBDNet

Code for "Toward Convolutional Blind Denoising of Real Photographs", CVPR 2019
Apache License 2.0
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What is the ground truth for the noise level map #4

Closed a7med12345 closed 6 years ago

a7med12345 commented 6 years ago

Hello; Could you explain to me what is the ground truth for your noise estimation network. Thank you very much.

GuoShi28 commented 6 years ago

Hi, For synthesis noise image created by realistic noise model, we set \sigma_c+L\sigma_s as the groundtruth.

a7med12345 commented 6 years ago

Hi; Thank you for the quick answer. I am still unsure about the L in your formula. Is it the clean image?

GuoShi28 commented 6 years ago

L is the irradiance of the clean image. In this paper, we set L = f^{-1}(x), in which x is the clean image and f is the camera response function (CRF). You can also refer "Automatic estimation and removal of noise from a single image" for more details. We following the experiment setting for L of this paper.

a7med12345 commented 6 years ago

Thank you very much.