diff --git a/Image/BillDetection.h b/Image/BillDetection.h
index 79d54bf..6c246c9 100644
--- a/Image/BillDetection.h
+++ b/Image/BillDetection.h
@@ -64,7 +64,8 @@ namespace Image {
                     }
                 }
 
-                /* we probably don't want a polygon all the time?! */
+                // Approximate polygon
+                /* Question: we probably don't want a polygon all the time?! */
                 std::vector<std::vector<cv::Point> > contoursDraw (contoursArea.size());
                 for (int i = 0; i < contoursArea.size(); ++i){
                     cv::approxPolyDP(cv::Mat(contoursArea[i]), contoursDraw[i], 40, true);
diff --git a/Image/Thresholding.h b/Image/Thresholding.h
index 2551c78..4c6d3e3 100644
--- a/Image/Thresholding.h
+++ b/Image/Thresholding.h
@@ -63,7 +63,7 @@ namespace Image {
                         sum   = intImg[x2][y2] - intImg[x2][y1 - 1] - intImg[x1 - 1][y2] + intImg[x1 - 1][y1 - 1];
 
                         bgr = in.at<cv::Vec3b>(j, i);
-                        brightness = (float) Image::ImageUtils::lightnessFromRgb(bgr[2], bgr[1], bgr[0]);
+                        brightness = Image::ImageUtils::lightnessFromRgb(bgr[2], bgr[1], bgr[0]);
 
                         color = brightness * count <= (sum * (100.0 - t) / 100.0) && brightness < 0.95 ? 0 : 255;
 
diff --git a/Utils/MathUtils.h b/Utils/MathUtils.h
index f05f5e2..18934c2 100644
--- a/Utils/MathUtils.h
+++ b/Utils/MathUtils.h
@@ -1,7 +1,7 @@
 /**
  * Karaka
  *
- * @package   Image
+ * @package   Utils
  * @copyright Dennis Eichhorn
  * @license   OMS License 1.0
  * @version   1.0.0