Overview
Convert a text-to-image graph into image-to-image:
- Copy the existing text-to-image workflow so the original remains available.
- Bypass the branch that should not run.
- Delete the Empty Latent Image from the active branch.
- Add Load Image and upload the source image.
- Drag from the image output and add VAE Encode.
- Connect the checkpoint's VAE output to the VAE Encode node.
- Connect the encoded latent output to the KSampler's Latent Image input.
- Keep the positive and negative prompt connections in place.
- Set denoise to 0.3 for a conservative first test.
- Queue the workflow and compare the output with the original.
- Increase denoise to 0.8 and queue again to observe a stronger transformation.
Because only the denoise setting changed, ComfyUI begins from the modified stage rather than reloading the checkpoint and recomputing every unchanged node.