11 lines
420 B
JavaScript
11 lines
420 B
JavaScript
const SHEET_GREEN = { r: 0, g: 255, b: 0 };
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function greenDistance(r, g, b) {
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const dr = r - SHEET_GREEN.r;
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const dg = g - SHEET_GREEN.g;
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const db = b - SHEET_GREEN.b;
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return Math.sqrt(dr * dr + dg * dg + db * db);
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}
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console.log('sheet green (34,139,34):', greenDistance(34, 139, 34).toFixed(1));
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console.log('brown (139,90,43):', greenDistance(139, 90, 43).toFixed(1));
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console.log('threshold at s=50:', 150 - 50);
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