From: Vincent Vanwaelscappel <vincent@cubedesigners.com>
Date: Thu, 28 Nov 2019 11:35:26 +0000 (+0100)
Subject: wip #3206 @1
X-Git-Url: http://git.cubedesigners.com/?a=commitdiff_plain;h=475b743e158d3cd311bcc6144876a84344a2de7b;p=1000pourcent.git

wip #3206 @1
---

diff --git a/_doc/areas.psd b/_doc/areas.psd
index 80a0632..3abb9e0 100644
Binary files a/_doc/areas.psd and b/_doc/areas.psd differ
diff --git a/js/ocr.js b/js/ocr.js
index 9b0be4e..91edaa7 100644
--- a/js/ocr.js
+++ b/js/ocr.js
@@ -70,6 +70,15 @@ function extractRegion(src, region, color, area) {
     M.data64F[5] += (bbox.height - h) / 2;
     cv.warpAffine(dst, res, M, bbox, cv.INTER_LINEAR, cv.BORDER_CONSTANT, new cv.Scalar());
 
+    // Invert colors
+    cv.bitwise_not(res, res);
+    // Grayscale
+    cv.cvtColor(res, res, cv.COLOR_RGBA2GRAY, 0);
+    // Brightness
+    cv.convertScaleAbs(res, res,2,100);
+    // Contrast
+     cv.equalizeHist(res, res);
+
     let canvas = getCanvas(drawId);
     cv.imshow(canvas, res);