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fix(result): default auto-scale targets a 2000px output
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Previously the auto-scale was just the source-image px/mm of the chosen
reference datum, which produced enormous outputs for high-res photos.
Pick the output px/mm so the longer side of the warped image is roughly
2000 px; floor to int (the input is integer-only); clamp at 1.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Samuel Prevost 2026-04-25 09:57:52 +02:00
parent e94a814335
commit fe61ba3cf2
1 changed files with 13 additions and 11 deletions
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24
src/components/ResultViewer.vue
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@ -57,7 +57,9 @@ watch(scaleInput, (v) => {
} }
}) })
const MAX_AUTO_SCALE_DIM = 8192 /** Max dimension (px) of the auto-suggested output. Picked so default
* exports stay under a few MB and OpenCV's WASM doesn't choke. */
const AUTO_SCALE_TARGET_DIM = 2000
/** Estimate the image-pixels-per-mm implied by a single datum. Picks the /** Estimate the image-pixels-per-mm implied by a single datum. Picks the
* best datum by type priority (rect > line > ellipse) and then confidence. * best datum by type priority (rect > line > ellipse) and then confidence.
@ -123,16 +125,16 @@ function computeAutoScale(): number {
const ref = pickScaleRef() const ref = pickScaleRef()
if (!img || !ref || ref.srcPxPerMm <= 0) return DEFAULT_SCALE_PX_PER_MM if (!img || !ref || ref.srcPxPerMm <= 0) return DEFAULT_SCALE_PX_PER_MM
let autoScale = ref.srcPxPerMm // The full warped output is roughly the source image scaled by
// (outputPxPerMm / srcPxPerMm). Pick outputPxPerMm so the larger of
// Clamp so the full output doesn't exceed MAX_AUTO_SCALE_DIM // the two output dimensions lands at AUTO_SCALE_TARGET_DIM; floor so
const estMax = Math.max(img.naturalWidth, img.naturalHeight) // the shown value round-trips through the integer-only input; clamp
if (estMax > MAX_AUTO_SCALE_DIM) { // at 1 to avoid useless 0 px/mm.
autoScale *= MAX_AUTO_SCALE_DIM / estMax const imgMaxDim = Math.max(img.naturalWidth, img.naturalHeight)
} if (imgMaxDim <= 0) return DEFAULT_SCALE_PX_PER_MM
const target =
// The scale input is integer-only; floor so the shown value round-trips. (AUTO_SCALE_TARGET_DIM * ref.srcPxPerMm) / imgMaxDim
return Math.max(1, Math.floor(autoScale)) return Math.max(1, Math.floor(target))
} }
onMounted(() => { onMounted(() => {