High Level GUI and Media (highgui module) {#tutorial_table_of_content_highgui} ========================================= This section contains valuable tutorials about how to read/save your image/video files and how to use the built-in graphical user interface of the library. - @subpage tutorial_trackbar *Compatibility:* \> OpenCV 2.0 *Author:* Ana Huamán We will learn how to add a Trackbar to our applications - @subpage tutorial_video_input_psnr_ssim *Compatibility:* \> OpenCV 2.0 *Author:* Bernát Gábor You will learn how to read video streams, and how to calculate similarity values such as PSNR or SSIM. - @subpage tutorial_video_write *Compatibility:* \> OpenCV 2.0 *Author:* Bernát Gábor Whenever you work with video feeds you may eventually want to save your image processing result in a form of a new video file. Here's how to do it. - @subpage tutorial_raster_io_gdal *Compatibility:* \> OpenCV 2.0 *Author:* Marvin Smith Read common GIS Raster and DEM files to display and manipulate geographic data. - @subpage tutorial_kinect_openni - @subpage tutorial_intelperc