Flat grid
Regular spacing and opaque subjects are the detector's strongest case. The extra region shows why preview and removal remain necessary.
Public Benchmark
Icon sheet extraction benchmark
This benchmark records what automatic extraction found, what a human reviewer expected, and where the current detector failed. It is designed to make IconSplit's strengths and limits inspectable rather than hiding them behind a single success rate.
Reviewed baseline results
These results were generated from the same browser-side extraction path used by the product and manually reviewed against the visible source icons. Runtime is a local measurement, not a universal speed claim.
| Fixture | Expected | Detected | Runtime | Reviewed outcome |
|---|---|---|---|---|
| Flat grid | 25 | 26 | 660 ms | One extra region |
| Hand-drawn grid | 50 | 49 | 701 ms | One missed icon |
| Translucent glass grid | 9 | Not scored | Timed out | Known failure case |
Baseline recorded July 11, 2026. A timed-out fixture is reported as unscored, not converted into a favorable percentage.
Hand-drawn grid
Light strokes, uneven edges, and smaller subjects increase the chance that one icon is merged with background noise or missed.
Translucent glass grid
Low-contrast transparent boundaries are intentionally kept as a visible failure case. Manual selection can crop them, but clean background removal is not yet reliable.
What is measured
Expected visible icons, returned regions, reviewed false positives or misses, and local processing time. Extraction quality is judged before any manual correction.
What is not measured
The benchmark does not claim universal accuracy, compare unreviewed competitors, or treat processing speed from one machine as a service-level guarantee.
How to reproduce it
Upload each fixture through the homepage, keep automatic detection settings at their defaults, and compare the result list with the visible source icons.
Why preview and manual correction still matter
Automatic extraction is a proposal, not an irreversible export step. A dense or translucent source can create an extra crop, miss a small icon, or include a nearby fragment. IconSplit keeps the detected regions visible so users can remove a false result, repair an edge, or switch to manual selection before exporting.