How to Use This Workflow:

1. In the "Image Resize" node, set the "width" and "height" values to exactly match the dimensions of your original (source) image.

2. In the "Load Image node", upload your source image by clicking Choose File to Upload.

3. In the "Ultimate SD Upscale" node, use the "upscale_by" parameter to specify how many times larger you want the final image to be (e.g., 2 = 2× upscale, 4 = 4× upscale).

4. Click the "Run" button to start the upscaling process.