6868
6969-# ** What does this program do?**
7070 - Asks the user to enter a numerical value to set the lower threshold for our * Canny Edge
71- Detector* (by means of a Trackbar)
71+ Detector* (by means of a Trackbar).
7272 - Applies the * Canny Detector* and generates a ** mask** (bright lines representing the edges
7373 on a black background).
7474 - Applies the mask obtained on the original image and display it in a window.
@@ -85,19 +85,19 @@ Explanation
8585
8686 Note the following:
8787
88- -# We establish a ratio of lower:upper threshold of 3:1 (with the variable *ratio*)
88+ -# We establish a ratio of lower:upper threshold of 3:1 (with the variable *ratio*).
8989 -# We set the kernel size of \f$3\f$ (for the Sobel operations to be performed internally by the
90- Canny function)
90+ Canny function).
9191 -# We set a maximum value for the lower Threshold of \f$100\f$.
9292
9393-# Loads the source image:
9494 @snippet cpp/tutorial_code/ImgTrans/CannyDetector_Demo.cpp load
9595
96- -# Create a matrix of the same type and size of * src* (to be * dst* )
96+ -# Create a matrix of the same type and size of * src* (to be * dst* ):
9797 @snippet cpp/tutorial_code/ImgTrans/CannyDetector_Demo.cpp create_mat
98- -# Convert the image to grayscale (using the function @ref cv::cvtColor :
98+ -# Convert the image to grayscale (using the function @ref cv::cvtColor ) :
9999 @snippet cpp/tutorial_code/ImgTrans/CannyDetector_Demo.cpp convert_to_gray
100- -# Create a window to display the results
100+ -# Create a window to display the results:
101101 @snippet cpp/tutorial_code/ImgTrans/CannyDetector_Demo.cpp create_window
102102-# Create a Trackbar for the user to enter the lower threshold for our Canny detector:
103103 @snippet cpp/tutorial_code/ImgTrans/CannyDetector_Demo.cpp create_trackbar
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