diff --git a/lines.cpp b/lines.cpp
index 7aa6598..4a46ca9 100644
--- a/lines.cpp
+++ b/lines.cpp
@@ -121,9 +121,27 @@ int main(int argc, char *argv[])
 		}
 	}
 
-#ifdef _DEBUG
 	cv::Point middle1 = further_point_from_line(get_line(corn_1, corn_2), points2);
 	cv::Point middle2 = further_point_from_line(get_line(corn_3, corn_4), points1);
+
+	// we now have all the points of the two trapezoid (middle1 and middle2 are shared)
+	cv::Mat trasf[2]; //transformation matrix
+	double xsize = dist(corn_1, middle1), ysize=dist(middle1, middle2);
+	cv::Point2f trapezoid[2][4] = {
+		{corn_1, middle1, middle2, corn_4},
+		{corn_2, corn_3, middle2, middle1}};
+	cv::Point2f outsizes[4] = {cv::Point2f(0, 0), cv::Point(xsize, 0),
+		cv::Point(xsize, ysize), cv::Point(0, ysize)};
+	cv::Mat rect[2]; //final pages, transformed in a nice rectangle
+
+	//we are rereading in full color to get colored output
+	img = cv::imread(args.input,CV_LOAD_IMAGE_COLOR);
+	for(int i=0; i < 2; i++) {
+		trasf[i] = cv::getPerspectiveTransform(trapezoid[i], outsizes);
+		cv::warpPerspective(img, rect[i], trasf[i], cv::Size(xsize, ysize));
+	}
+
+#ifdef _DEBUG
 	cv::line(img, corn_1, middle1, MAGENTA, dotwidth>>3);
 	cv::line(img, corn_2, middle1, MAGENTA, dotwidth>>3);
 	cv::line(img, middle1, middle2, BLACK, dotwidth>>4);