Video Viewer - Display binary, intensity, or RGB images or video streams

Toolbar

GUI	Menu Equivalent	Shortcut Keys and Accelerators	Description
	File > Export to Image Tool	Ctrl+E	Send the current video frame to the Image Tool. For more information, see Using the Image Tool to Explore Images in the Image Processing Toolbox documentation.
Note   The Image Tool can only know that the frame is an intensity image if the colormap of the frame is grayscale (gray(256)). Otherwise, the Image Tool assumes the frame is an indexed image and disables the Adjust Contrast button.
	Tools > Video Information	V	View information about the video data source.
	Tools > Pixel Region	N/A	Open the Pixel Region tool. For more information about this tool, see the Image Processing Toolbox documentation.
	Tools > Zoom In	N/A	Zoom in on the video display.
	Tools > Zoom Out	N/A	Zoom out of the video display.
	Tools > Pan	N/A	Move the image displayed in the GUI.
	Tools > Maintain Fit to Window	N/A	Scale video to fit GUI size automatically. Toggle the button on or off.
	N/A	N/A	Enlarge or shrink the video frame. This option becomes available if you do not select the Maintain Fit to Window.

Playback Toolbar

GUI	Menu Equivalent	Shortcut Keys and Accelerators	Description
	Playback > Stop	S	Stop the video.
	Playback > Play	P, Space bar	Play the video.
	Playback > Pause	P, Space bar	Pause the video. This button appears only when the video is playing.
	Playback > Step Forward	Right arrow, Page Down	Step forward one frame.
	Playback > Simulink Snapshot	N/A	Click this button to freeze the display in the viewer window.
	Playback > Highlight Simulink Signal	Ctrl+L	In the model window, highlight the Simulink signal the viewer is displaying.

The Video Viewer Configuration preferences enables you to change the behavior and appearance of the graphic user interface (GUI) as well as the behavior of the playback shortcut keys.

• To open the Configuration dialog box, select File > Configuration Set > Edit.

• To save the configuration settings for future use, select File > Configuration Set > Save as.

The Core pane in the Viewer Configuration dialog box controls the GUI's general settings.

General UI
Click General UI, and click the Options button to open the General UI Options dialog box.

If you select the Display the full source path in the title bar check box, the GUI displays the model name and full Simulink path to the video data source in the title bar. Otherwise, it displays a shortened name.

Use the Open message log: parameter to control when the Message log window opens. You can use this window to debug issues with video playback. Your choices are for any new messages, for warn/fail messages, only for fail messages, or manually.

The Tools pane in the Viewer Configuration dialog box contains the tools that appear on the Video Viewer GUI. Select the Enabled check box next to the tool name to specify which tools to include on the GUI.

Image Tool

Click Image Tool, and then click the Options button to open the Image Tool Options dialog box.

Select the Open new Image Tool window for export check box if you want to send each video frame to a different session of Image Tool.

Pixel Region
Select the Pixel Region check box to display and enable the pixel region GUI button. For more information on working with pixel regions see Getting Information about the Pixels in an Image.

Image Navigation Tools
Select the Image Navigation Tools check box to enable the pan-and-zoom GUI button.

Instrumentation Set
Select the Instrumentation Set check box to enable the option to load and save viewer settings. The option appears in the File menu.

The Video Information dialog box lets you view basic information about the video. To open this dialog box, you can select Tools > Video Information , click the information button , or press the V key.

The Colormap dialog box lets you change the colormap of an intensity video. You cannot access the parameters on this dialog box when the GUI displays an RGB video signal. To open this dialog box for an intensity signal, select Tools > Colormap or press C.

Use the Colormap parameter to specify the colormap to apply to the intensity video.

If you know that the pixel values do not use the entire data type range, you can select the Specify range of displayed pixel values check box and enter the range for your data. The dialog box automatically displays the range based on the data type of the pixel values.

A status bar appear along the bottom of the Video Viewer. It displays information pertaining to the video status (running, paused or ready), type of video (Intensity or RGB) and video time.