SRGan in Tensorflow

This is an implementation of the paper Photo-Realistic Single Image Super-Resolution Using a Generative Adversarial Network using TensorFlow.

Usage

Set up

1. Download the VGG19 weights provided by TensorFlow-Slim. Place the vgg_19.ckpt file in this directory.
2. Download a dataset of images. I recommend ImageNet or Places205. Specify the directory containing your dataset using the --train-dir argument when training the model.

Training

SRResNet-MSE

python train.py --name srresnet-mse --content-loss mse --train-dir path/to/dataset

SRResNet-VGG22

python train.py --name srresnet-vgg22 --content-loss vgg22 --train-dir path/to/dataset

SRGAN-MSE

python train.py --name srgan-mse --use-gan --content-loss mse --train-dir path/to/dataset --load results/srresnet-mse/weights-1000000

SRGAN-VGG22

python train.py --name srgan-vgg22 --use-gan --content-loss vgg22 --train-dir path/to/dataset --load results/srresnet-mse/weights-1000000

SRGAN-VGG54

python train.py --name srgan-vgg54 --use-gan --content-loss vgg54 --train-dir path/to/dataset --load results/srresnet-mse/weights-1000000

Results

Set5	Ledig SRResNet	This SRResNet	Ledig SRGAN	This SRGAN
PSNR	32.05	32.11	29.40	28.21
SSIM	0.9019	0.8933	0.8472	0.8200

Set14	Ledig SRResNet	This SRResNet	Ledig SRGAN	This SRGAN
PSNR	28.49	28.61	26.02	25.74
SSIM	0.8184	0.7809	0.7397	0.6909

BSD100	Ledig SRResNet	This SRResNet	Ledig SRGAN	This SRGAN
PSNR	27.58	27.57	25.16	24.80
SSIM	0.7620	0.7346	0.6688	0.6314