4x Image Super Resolution Workflow Guide Professional-grade image upscaling with ESRGAN and UltimateSDUpscale options. Core Features: 1. ESRGAN Quick Upscale: Direct 4x, fast 2. UltimateSDUpscale Fine Upscale: Tiled + redraw, higher quality 3. Multi-Model: RealESRGAN/4x-UltraSharp/SwinIR etc. 4. Low VRAM: Tiled processing, works with 4GB Required Models: ESRGAN model + UltimateSDUpscale node Usage Steps: 1. Import workflow JSON 2. Upload image to upscale 3. Select model 4. Select method (Quick/Fine) 5. Run Parameter: Quick=ESRGAN 4x, Fine=UltimateSDUpscale tile_size=512 denoise=0.3 FAQ: Q: Upscaled image blurry? A: Use Fine mode, lower denoise to 0.2-0.3. Q: Not enough VRAM? A: Reduce tile_size to 256 or use FP16 model.