{"name":"QuickBGCut Background Removal Lab","methodologyUrl":"https://quickbgcut.com/examples","reviewedAt":"2026-07-22","model":"ISNet FP16","processing":"1024 x 1024 inference, CPU/WebAssembly","output":"Full-size transparent PNG","environment":{"device":"MacBook Pro (Apple M3 Pro, 18 GB)","browser":"Chrome 150","logicalCores":12},"totalProcessingMs":31370,"sourceCount":4,"observationCount":20,"provenance":"The four files are versioned QuickBGCut repository fixtures. Their original capture metadata was not retained, so the lab describes them as project test assets rather than claiming original photography.","studies":[{"id":"glass-product","title":"Amber glass bottle","useCase":"Product listing","before":"/examples/product-before.png","after":"/examples/product-after.png","dimensions":"1122 x 1402 px","inputBytes":1931915,"outputBytes":452490,"transparentPixels":"89.0%","softEdgePixels":"4.2%","difficulty":"high","verdict":"cleanup","challenge":"Transparent glass, repeated highlights, warm reflections, and the contact shadow overlap the original setting.","processingMs":16280,"timingContext":"cold","observations":[{"id":"glass-cap-ridges","title":"Ribbed cap retains its shape","category":"transparent-reflective","focus":"Glass stopper and narrow highlights","assessment":"The outer cap remains continuous, but the reflective ridges carry partial alpha values that need checking on a dark background.","severity":"minor","verdict":"ready","crop":{"objectPosition":"55% 28%","zoom":2.25}},{"id":"glass-left-outline","title":"Left outline is mostly continuous","category":"product","focus":"Left shoulder and vertical bottle edge","assessment":"The silhouette is readable at catalog size. A thin warm fringe is visible when the PNG is enlarged.","severity":"moderate","verdict":"cleanup","crop":{"objectPosition":"42% 53%","zoom":2.1}},{"id":"glass-inner-reflections","title":"Internal reflections stay with the subject","category":"transparent-reflective","focus":"Bottle body and vertical amber highlights","assessment":"The model preserves the warm internal structure instead of making the whole bottle transparent, which keeps the product recognizable.","severity":"minor","verdict":"ready","crop":{"objectPosition":"53% 60%","zoom":1.85}},{"id":"glass-label-edge","title":"Label edge stays sharp","category":"fine-detail","focus":"Rectangular paper label and thin baseline","assessment":"The hard label boundary and small horizontal line remain intact, with no visible holes introduced inside the label.","severity":"minor","verdict":"ready","crop":{"objectPosition":"53% 62%","zoom":2.8}},{"id":"glass-base-shadow","title":"Base carries a visible fringe","category":"low-contrast-shadow","focus":"Contact shadow and lower-left glass edge","assessment":"Bright remnants and warm pixels remain below the bottle. Large product cards need a manual cleanup pass here.","severity":"major","verdict":"cleanup","crop":{"objectPosition":"51% 77%","zoom":2.5}}]},{"id":"paper-signature","title":"Ink signature on paper","useCase":"Document overlay","before":"/examples/signature-before.png","after":"/examples/signature-after.png","dimensions":"1536 x 1024 px","inputBytes":2266861,"outputBytes":270599,"transparentPixels":"96.1%","softEdgePixels":"2.4%","difficulty":"moderate","verdict":"ready","challenge":"Thin pen strokes must stay connected while paper texture and uneven lighting are removed.","processingMs":7239,"timingContext":"warm","observations":[{"id":"signature-opening-stroke","title":"Opening stroke remains connected","category":"fine-detail","focus":"Long curved stroke at the upper left","assessment":"The stroke is preserved from end to end, including its two small terminal dots, although a pale halo remains around the ink.","severity":"moderate","verdict":"cleanup","crop":{"objectPosition":"20% 30%","zoom":2.15}},{"id":"signature-letter-crossings","title":"Letter crossings survive","category":"fine-detail","focus":"Overlapping strokes in the first name","assessment":"Intersections are not punched out, so the handwritten structure remains readable at document size.","severity":"minor","verdict":"ready","crop":{"objectPosition":"31% 42%","zoom":2.45}},{"id":"signature-thin-word","title":"Thin middle word remains legible","category":"low-contrast-shadow","focus":"Small, lightly written middle word","assessment":"The lightest strokes survive but become softer than the larger letters. Test them at the intended print scale.","severity":"moderate","verdict":"cleanup","crop":{"objectPosition":"58% 43%","zoom":3}},{"id":"signature-tall-strokes","title":"Tall strokes avoid jagged breaks","category":"fine-detail","focus":"Vertical and diagonal strokes in the surname","assessment":"Soft alpha pixels keep the long lines visually smooth and connected rather than turning them into stair-step edges.","severity":"minor","verdict":"ready","crop":{"objectPosition":"62% 64%","zoom":2.35}},{"id":"signature-final-flourish","title":"Final flourish is preserved","category":"fine-detail","focus":"Long underline and terminal loop","assessment":"The full flourish remains visible without a paper rectangle, making the output usable for ordinary document overlays.","severity":"minor","verdict":"ready","crop":{"objectPosition":"73% 72%","zoom":2.05}}]},{"id":"beach-portrait","title":"Portrait with loose hair","useCase":"Profile image","before":"/examples/avatar-before.png","after":"/examples/avatar-after.png","dimensions":"1086 x 1448 px","inputBytes":2195246,"outputBytes":1888451,"transparentPixels":"45.8%","softEdgePixels":"28.7%","difficulty":"high","verdict":"cleanup","challenge":"Dark strands cross blue sky, white foam, and a bright shoreline, so many boundary pixels contain both hair and background color.","processingMs":7314,"timingContext":"warm","observations":[{"id":"portrait-crown-holes","title":"Sky pockets remain above the crown","category":"portrait","focus":"Small gaps between hair strands at the top of the head","assessment":"Several blue and white pockets remain attached to the hair. They are visible on dark backgrounds and require retouching.","severity":"major","verdict":"cleanup","crop":{"objectPosition":"52% 25%","zoom":2.45}},{"id":"portrait-left-strands","title":"Loose left strands are simplified","category":"portrait","focus":"Thin hair crossing sky and water","assessment":"The main hair shape remains, while the finest isolated strands merge into a rougher boundary with blue remnants.","severity":"major","verdict":"cleanup","crop":{"objectPosition":"29% 43%","zoom":2.3}},{"id":"portrait-right-foam","title":"Bright foam is confused with the subject","category":"low-contrast-shadow","focus":"Hair edge against white shoreline foam","assessment":"White fragments stay beside the hair because the edge and background share similar brightness at this point.","severity":"major","verdict":"cleanup","crop":{"objectPosition":"80% 46%","zoom":2.2}},{"id":"portrait-arm-edge","title":"Arm silhouette is stable","category":"portrait","focus":"Large skin boundary along the lower-left arm","assessment":"The high-contrast arm edge is continuous and clean enough for small profile or social layouts.","severity":"minor","verdict":"ready","crop":{"objectPosition":"19% 75%","zoom":1.9}},{"id":"portrait-shirt-edge","title":"White shirt edge keeps colored contamination","category":"low-contrast-shadow","focus":"White fabric against bright water and sand","assessment":"Yellow and blue pixels remain along parts of the fabric boundary. A white destination background hides more of this defect than a dark one.","severity":"moderate","verdict":"cleanup","crop":{"objectPosition":"66% 80%","zoom":2}}]},{"id":"light-logo","title":"Light logo with small text","useCase":"Website logo","before":"/examples/logo-before.png","after":"/examples/logo-after.png","dimensions":"1254 x 1254 px","inputBytes":825001,"outputBytes":330575,"transparentPixels":"89.9%","softEdgePixels":"6.7%","difficulty":"high","verdict":"cleanup","challenge":"White highlights, blue gradients, small letters, and a nearly white source background are hard to separate reliably.","processingMs":285,"timingContext":"warm","observations":[{"id":"logo-icon-outline","title":"Pale icon outline stays visible","category":"low-contrast-shadow","focus":"Light blue outer frame against a white source","assessment":"The frame survives, but white contamination remains around its soft outer edge and is obvious on black.","severity":"moderate","verdict":"cleanup","crop":{"objectPosition":"20% 53%","zoom":2.15}},{"id":"logo-checker-detail","title":"Interior checker detail is preserved","category":"fine-detail","focus":"Small transparency motif inside the icon","assessment":"The model treats the checker motif as part of the artwork and preserves its small squares rather than erasing them.","severity":"minor","verdict":"ready","crop":{"objectPosition":"31% 51%","zoom":2.8}},{"id":"logo-sparkle-holes","title":"Sparkle carries white remnants","category":"fine-detail","focus":"Small star shapes above the icon","assessment":"The primary sparkle remains, but several white pixels and tiny holes make the edge unsuitable for large-format branding.","severity":"major","verdict":"cleanup","crop":{"objectPosition":"39% 40%","zoom":3.2}},{"id":"logo-wordmark-counters","title":"Wordmark counters remain open","category":"fine-detail","focus":"Interior spaces in the large letters","assessment":"The major letterforms remain readable and their inner openings are not filled, which is adequate at normal header size.","severity":"minor","verdict":"ready","crop":{"objectPosition":"66% 53%","zoom":1.9}},{"id":"logo-tagline-strokes","title":"Small tagline is fragile","category":"low-contrast-shadow","focus":"Thin white and blue uppercase text","assessment":"Most letters survive, but pale outlines and uneven stroke weight remain. The original vector should be preferred whenever available.","severity":"major","verdict":"cleanup","crop":{"objectPosition":"68% 63%","zoom":2.45}}]}]}