fix getCanvasContrast: wrong calc for imagedata offset.

yoya · May 20, 2017 · b161ed9 · b161ed9
1 parent 8e3d0a1
commit b161ed9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/spectrum.js b/spectrum.js
@@ -302,7 +302,7 @@ function getCanvasContrast(canvas) {
 	var r = data[i++]
 	var g = data[i++];
 	var b = data[i++];
-	// a ; i++;
+	i++; // a;
 	if (r < minRed) {
 	    minRed = r;
 	} else if (maxRed < r) {