diff --git a/src/core/transformations/bin_gradient.cpp b/src/core/transformations/bin_gradient.cpp
index d502adb..2cb9d92 100644
--- a/src/core/transformations/bin_gradient.cpp
+++ b/src/core/transformations/bin_gradient.cpp
@@ -15,9 +15,36 @@ PNM* BinarizationGradient::transform()
     int width = image->width();
     int height = image->height();
 
-    PNM* newImage = new PNM(width, height, QImage::Format_Mono);
+    PNM* newImage = new PNM(width, height, QImage::Format_RGB32);
 
-    qDebug() << Q_FUNC_INFO << "Not implemented yet!";
+    float numerator = 0;
+    float denominator = 0;
+
+    int Gx, Gy;
+
+    for (int x = 0; x<width; x++)
+        for (int y = 0; y<height; y++){
+            Gx = qGray(getPixel(x + 1, y, RepeatEdge)) - qGray(getPixel(x - 1, y, RepeatEdge));
+            Gy = qGray(getPixel(x, y + 1, RepeatEdge)) - qGray(getPixel(x, y - 1, RepeatEdge));
+
+            if (Gx > Gy){
+                numerator += Gx * qGray(getPixel(x, y, RepeatEdge));
+                denominator += Gx;
+            } else {
+                numerator += Gy * qGray(getPixel(x, y, RepeatEdge));
+                denominator += Gy;
+            }
+        }
+
+    int threshold = numerator / denominator;
+
+    for (int x = 0; x<width; x++)
+        for (int y = 0; y<height; y++) {
+            int pixelValue = qGray(image->pixel(x, y));
+            int v = pixelValue >= threshold ? 255 : 0;
+
+            newImage->setPixel(x,y, QColor(v,v,v).rgb());
+        }
 
     return newImage;
 }