StudioSR

StudioSR is a PyTorch library providing implementations of training and evaluation of super-resolution models. StudioSR aims to offer an identical playground for modern super-resolution models so that researchers can readily compare and analyze a new idea. (inspired by PyTorch-StudioGan)

Installation

From PyPI

pip install studiosr

From source (Editable)

git clone https://github.com/veritross/studiosr.git
cd studiosr
python3 -m pip install -e .

Documentation

Documentation along with a quick start guide can be found in the docs/ directory.

Quick Example

$ python -m studiosr --image image.png --scale 4 --model swinir

from studiosr.models import SwinIR
from studiosr.utils import imread, imwrite

model = SwinIR.from_pretrained(scale=4).eval()
image = imread("image.png")
upscaled = model.inference(image)
imwrite("upscaled.png", upscaled)

Train

from studiosr import Evaluator, Trainer
from studiosr.data import DIV2K
from studiosr.models import SwinIR

dataset_dir="path/to/dataset_dir",
scale = 4
size = 64
dataset = DIV2K(
    dataset_dir=dataset_dir,
    scale=scale,
    size=size,
    transform=True, # data augmentations
    to_tensor=True,
    download=True, # if you don't have the dataset
)
evaluator = Evaluator(scale=scale)

model = SwinIR(scale=scale)
trainer = Trainer(model, dataset, evaluator)
trainer.run()

Evaluate

from studiosr import Evaluator
from studiosr.models import SwinIR
from studiosr.utils import get_device

scale = 2  # 2, 3, 4
dataset = "Set5"  # Set5, Set14, BSD100, Urban100, Manga109
device = get_device()
model = SwinIR.from_pretrained(scale=scale).eval().to(device)
evaluator = Evaluator(dataset, scale=scale)
psnr, ssim = evaluator(model.inference)

Benchmark

• The evaluation metric is PSNR.
• You can check the full benchmark here.

Method	Scale	Training Dataset	Set5	Set14	BSD100	Urban100
EDSR	x 4	DIV2K	32.485	28.814	27.721	26.646
RCAN	x 4	DIV2K	32.639	28.851	27.744	26.745
SwinIR	x 4	DF2K	32.916	29.087	27.919	27.453
HAT	x 4	DF2K	33.055	29.235	27.988	27.945

Method	Scale	Training Dataset	Set5	Set14	BSD100	Urban100
EDSR	x 3	DIV2K	34.680	30.533	29.263	28.812
RCAN	x 3	DIV2K	34.758	30.627	29.302	29.009
SwinIR	x 3	DF2K	34.974	30.929	29.456	29.752
HAT	x 3	DF2K	35.097	31.074	29.525	30.206

Method	Scale	Training Dataset	Set5	Set14	BSD100	Urban100
EDSR	x 2	DIV2K	38.193	33.948	32.352	32.967
RCAN	x 2	DIV2K	38.271	34.126	32.390	33.176
SwinIR	x 2	DF2K	38.415	34.458	32.526	33.812
HAT	x 2	DF2K	38.605	34.845	32.590	34.418

License

StudioSR is an open-source library under the MIT license.