Bug fix range handling

danschultzer · Jun 6, 2018 · b4ec43c · b4ec43c
1 parent a641fb5
commit b4ec43c
Showing 1 changed file with 5 additions and 5 deletions.
diff --git a/lib/image_processor/preprocessor/opencv.js b/lib/image_processor/preprocessor/opencv.js
@@ -55,11 +55,11 @@ function getPaperThreshold (im, outfile, config) {
     // Find the most common color
     mask.convertHSVscale()
     var channels = mask.split()
-    var res = channels[2].meanStdDev()
-    var minHue = res.mean[2] - res.stddev[2] * 3
-    var maxHue = res.mean[2] + res.stddev[2] * 3
-    mask = channels[2]
-    mask.inRange(minHue, maxHue)
+    var res = channels[0].meanStdDev()
+    var minHue = res.mean.get(0) - res.stddev.get(0) * 3
+    var maxHue = res.mean.get(0) + res.stddev.get(0) * 3
+    mask.inRange([minHue, 0, 0], [maxHue, 260, 180])
+
     mask = mask.threshold(10, 255, 'Binary', 'Otsu')
     mask.erode(5)
     mask.dilate(20)