Most disappointing style conversions don't fail at the style step. They fail five minutes earlier, in a scan that was never cleaned up properly. Dust left in, colour cast left on, a slightly crooked horizon — the transform faithfully amplifies every one of those problems, then adds its own texture on top. By the time you see the result, it's hard to tell what went wrong.
The fix is a fixed order of operations. Do the mechanical work first, leave the taste calls for last, and let the style pass be the final decision rather than a rescue attempt. If you're running a style conversion, the cleaning stage costs maybe ten minutes and saves the whole edit.
Step 1: Crop, straighten, and set the working resolution
Everything else depends on this. Straighten to a real reference — a doorframe, a picture edge, a horizon. Then crop away the scanner bed edges, the ruler you put down for scale, and any tape marks.
Set your working resolution before you start editing, at the size you actually need for output. Downscaling after sharpening throws away the detail you just worked on; upscaling after cleaning means cleaning artefacts get magnified. Pick the final size now.
Step 2: Dust, scratches, and sensor spots
Do the boring pixel-level cleanup before you touch colour. Reason: once you shift colour and contrast, the dust becomes harder to see, and you'll miss half of it. Clone and heal at 100% zoom, working in small sections and marking off what you've finished.
Watch for two specific things on flatbed scans of prints:
- Newton rings — the concentric rainbow patterns from a print pressed against glass. Healing them is tedious; if you see them early, rescan with the print lifted a millimetre instead.
- Creases that run through detail — a crease across a face or a caption. Fix these carefully here, because a style pass will smear them into something that looks worse than the crease did.
Step 3: Correct the colour cast
Old prints and cheap scanners both push colour in one direction — usually magenta or yellow. Find something in the image that should be neutral: a white shirt, a grey wall, a sheet of paper. Neutralise that, and the rest of the image usually falls into place.
Be careful with aged paper. A 1960s print genuinely is yellowish, and neutralising it completely can make it look cold and digital. Ask yourself whether you want to correct the scan or preserve the object. For a restoration, correct the scan. For an archival copy, don't.
Step 4: Tone and contrast, gently
Scans almost always look flat because they carry no true black. Set a black point and a white point, then stop. Resist the urge to slam the contrast slider — a style pass adds its own contrast, and doubling up produces the crushed-shadow look that reads as cheap.
If the image has faded highlights, recover them in small amounts. Blown highlights can't be recovered later by any transform; they're gone.
Step 5: Decide what to keep intact
Before running the conversion, mark the things that must survive. Faces, text, signatures, and any distinctive pattern. If the tool lets you weight or mask regions, use it. Faces are the most common casualty — a style pass will happily reinterpret an eye shape, and a portrait that no longer looks like the person is worthless no matter how painterly it is.
Step 6: The style pass
Now, and only now, apply the style. Run a low-strength version first, then a medium one, and compare side by side rather than in sequence. Your eye adjusts fast, and a conversion that looked dramatic at first glance often looks overcooked next to the original. imagetoimage.cn lets you run variations quickly, which makes this comparison practical rather than theoretical.
Step 7: Fix what the style pass broke
Every conversion introduces a few specific problems. Check for these after, not before:
- Halos around high-contrast edges — a bright rim where the algorithm misjudged a boundary.
- Banding in smooth gradients like skies and studio backdrops.
- Colour drift in skin tones and saturated reds, the two areas that shift most.
- Lost fine line work — thin ink lines in engravings and drawings often soften into grey mush.
Fix halos and banding with a light blend back toward the original in those specific areas. Don't re-run the whole conversion to fix one edge.
One thing to do before all of this
Keep an untouched copy of the raw scan. Not a layer, not a duplicate you'll eventually flatten — an actual separate file with a name you won't accidentally overwrite. Every single one of these steps is reversible if you have the original, and irreversible if you don't. It costs nothing and it has saved more restorations than any tool.
Get the order right and the style pass stops being a gamble. You're not hoping the transform fixes a bad scan; you're making a clean decision about how much of the original character to keep — which is the only interesting question in the first place.