Simple Image Upscaler
Step 1: Load Image
Step 2: Choose to Upscale by Target Size or by Factor (1.2x, 2x, 2.5x etc)
Step 3: Click Run
Required Nodes:
ComfyUI-Various: https://github.com/jamesWalker55/comfyui-various
Description
Comments (2)
Not an Upscale, It is just a simple resize.
If you resize an image from, say, 1024×1024 -> 2048×2048 and choose Lanczos, then you are upscaling using Lanczos resampling. It calculates the new pixels from neighboring source pixels using a windowed sinc function, generally producing sharper results than simpler methods like bilinear interpolation.