onnxruntime         # ONNX inference for ESRGAN models
numpy               # Array ops
Pillow              # Image I/O
gradio>=4.0         # Web UI (ImageSlider needs 4.x+)
gdown               # Reliable Google Drive downloader (handles confirmation pages)
torch               # PyTorch — loads SRCNN directly from .pth
torchvision         # Required by torch