What Is Inpainting? Fixing One Spot in a Photo Without Redoing the Whole Shot
What is inpainting, in plain terms: swapping out one area of an image while leaving the rest alone. Where it saves product photos, and why edges give it away.
What is inpainting? It's a way to replace one marked area of a photo while keeping everything else exactly as it was. For product shots, that beats a full regeneration, because it doesn't touch the parts that already look right.
How it actually works
You mask the area you want changed and describe what should appear there instead. The model repaints only that region, matching it to what's around it.
Everything outside the mask stays pixel for pixel identical to the original, so your product never drifts from the real thing.
What inpainting is good for in product photography
Removing clutter: tags, dust specks, reflections of the photographer, random objects in the background.
Replacing part of the background without regenerating the whole scene.
Fixing a corner the main generation damaged. Often it's faster to repaint one spot than to rerun the entire shot.
Adding something: a shadow under the product, a backdrop, props placed nearby.
Where inpainting gives itself away
The mask edge. A hard line between the original and the edit shows up when you zoom in. Feathering the edge fixes most of this.
Lighting. The patched area often reads differently lit than the area next to it, unless you spell that out in the prompt.
Grain and sharpness. The edit comes out cleaner than the original photo, and that mismatch reads like a sticker pasted on top.
Texture at the seam: fur, fabric, and hair blur together right at the mask line more than anywhere else.
What you shouldn't fix with inpainting
Product attributes buyers are paying for: freshness, wear, true color. I've written separately about where retouching crosses the line.
Text on packaging: a repainted label distorts the same way it would in a regular generation.
Most of the frame. If your mask covers half the image, you're better off rebuilding the scene from scratch and dialing in the change strength instead.
FAQ
What is inpainting, in plain terms? Replacing a masked area of an image while the rest of the shot stays untouched.
Why use it if full generation already exists? It leaves what's already working alone, so the product doesn't drift from the original.
Why can you spot the edit? A hard edge, lighting mismatch, or grain mismatch. Feathering the border and matching the lighting clears up most of it.
What shouldn't you touch with inpainting? Attributes buyers are paying for, and any text on packaging.
When should you regenerate the whole frame instead? Once the mask covers more than half the image.
Sources
- Flami: photo editing for marketplace listings
- Flami: change strength in image-to-image
- Flami: a shot-quality checklist
About the author
Jake Turner
Reviewer at Flami