tehret / blind-denoising Goto Github PK

Hey, I have read your paper and find that this study is very interesting and helpful.

When I try to run this code to see the blind denoising result, some wried thing happened.

First I download the video frame used in your paper according your guide. Here, I only download the station_2_1080p25.y4m and extract the frame to station_gray folder.

Then I get flow using TV-L1 Optical Flow Estimation method provided in your project.

Finally, I run the blinding_denoising.py script and all work.

The command line I use is :

cd tvl1flow
sh tvl1flow.sh station_gray/%03d.png 1 100 station_clean_flow/tvl1_%03d.flo
cd ..
python blind_denoising.py --input station_gray/%03d.png --ref station_gray/%03d.png --output res/%03d.png --flow station_clean_flow/tvl1_%03d.flo --last 100

The result seems fine. The PSNR l got is about 38db and the denoised image is fine.

But when i try to add some guassian noise with sigma 25 to each gray images, Things become different.

I didn't find the code for adding noise the video frame, so l write one myself and get noisy image in
station_noise folder.

The command line I use is :

cd tvl1flow
sh tvl1flow.sh station_noise/%03d.png 1 100 station_noise_flow/tvl1_%03d.flo
cd ..
python blind_denoising.py --input station_noise/%03d.png --ref station_gray/%03d.png --output noise25_res/%03d.png --flow station_noise_flow/tvl1_%03d.flo --last 100

I find that the wrapped image is all zero after wrapping the target image based on flow.
Naturally, the calculation of loss is no meaning and the final denosing result is a black image.

Part of images I use is posted below:
clean station image, 0001 frame:

noisy station image, 0001 frame, add guassian noise with sigma=25:

denoised image by your approach:

some print information:

Can you help me point out the problem and give me some suggestion to get idea result in your paper.

Looking forward to your reply. ^_^

ubuntu 16.04
cmake 3.5.1

1. fatal error: png.h: No such file or directory

 sudo apt-get install libpng-dev

2. fatal error: jpeglib.h: No such file or directory

sudo apt-get install libjpeg-dev

3. fatal error: tiffio.h: No such file or directory

sudo apt-get install libtiff5-dev