Lines Matching full:trackbar
1 Adding a Trackbar to our applications! {#tutorial_trackbar}
8 for you. An example of this is a **Trackbar**
13 information from the trackbar.
20 - Add a Trackbar in an OpenCV window by using @ref cv::createTrackbar
26 \f$\alpha\f$ value by using the Trackbar.
44 * @brief Callback for trackbar
89 We only analyze the code that is related to Trackbar:
96 -# To create a trackbar, first we have to create the window in which it is going to be located. So:
100 -# Now we can create the Trackbar:
106 - Our Trackbar has a label **TrackbarName**
107 - The Trackbar is located in the window named **"Linear Blend"**
108 - The Trackbar values will be in the range from \f$0\f$ to **alpha_slider_max** (the minimum
110 - The numerical value of Trackbar is stored in **alpha_slider**
111 - Whenever the user moves the Trackbar, the callback function **on_trackbar** is called
127 - **alpha_slider** is updated each time the trackbar is displaced by the user.
139 @ref tutorial_basic_linear_transform. One trackbar to set \f$\alpha\f$ and another for \f$\beta\f$. The output might
