6.13.5   Line Profile Window

See also: Menu Visualization ▹ Line Profile.

Selecting this entry opens a tool for the detailed inspection of a gray-value profile of a linear or circular ROI, see figure 6.32. Using the line profile is helpful in particular for optimizing edge detection in the 测量助手 or when checking the focus of your camera (see the section 'Focusing Your Camera'). The displayed line profile of the ROI is described in the section 'Line Profile Display'. Note that the line profile window is a visualization tool that cannot be used to create any output, like performing changes within the image or producing code.

Figure 6.32: The Line Profile Window.

When opening the line profile without using the Measure Assistant, nothing is displayed in the line profile until an ROI is drawn in the graphics window using the corresponding buttons in the line profile window.

There are various options for linking the line profile to different windows:

• Make another graphics window active, select another window ID in the Input Window drop-down menu, or display another image in the active graphics window. Whenever you do so, the line profile of the ROI in this image is computed and visualized, and the tool stores the graphics window from which the image was sent (the originating window).
• A Measure Assistant can be selected as data source by activating the checkbox Measure Assistant under Input Window within the line profile window and choosing the correct assistant from the drop-down menu if several assistants are open at the same time.
• The line profile can be opened from the Measure Assistant window by clicking on the View Line Profile button on the Edges tab.

• 6.13.5.1   ROI Menu of the Line Profile Window
• 6.13.5.2   Line Profile Display
• 6.13.5.3   Context Menus
• 6.13.5.4   Line Profile Options
• 6.13.5.5   Input and Output
• 6.13.5.6   Statistics
• 6.13.5.7   Focusing Your Camera: How to Test Images for Sharpness