Replace the background behind a subject
Swaps the background while keeping edges and lighting believable.
The prompt
75 wordsReplace the background of this image with a soft gradient studio backdrop in warm beige, keeping the subject exactly as it is. Cut the subject out precisely, preserving fine edge detail including hair strands, fur, transparent areas and thin elements. Match the new background's lighting direction and colour temperature to the subject, and add a soft, realistic contact shadow where the subject meets the surface. Do not alter the subject's shape, colour, texture or proportions.
Getting the best result
- 1
Hair and fur edges are where cheap background swaps fail — the edge-detail sentence is doing real work.
- 2
If the cutout looks pasted on, add: 'add subtle rim light matching the new background'.
Where to use it
Paste this into any AI image tool that accepts a text instruction — upload your photo first, then paste the prompt as the edit instruction. The wording is deliberately explicit, because the constraints are what stop the model drifting away from what you asked for.