Line Profile Line Profile
A Line Profile is a graph of pixel values versus distance along a line drawn on the image. A Line Profile differs from a Column Profile Plot and a Row Profile Plot in that the sample line is drawn manually using the mouse, In addition, the Line Profile plots luminance versus distance on the x-axis, whereas a column or row profile plots luminance versus position.
See Creating a Line Profile for the plotting procedure.
The Line Profile command is operated from a toolbar and also from a drop menu that extends from the main toolbar. The commands available in the menu depend on whether or not the Toolbar is open:
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Drop menu with toolbar closed |
Drop menu with toolbar open |
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A line profile can be plotted using either the present command or by using the direction-specific commands for a Column Profile or a Row Profile. There are some unique capabilities offered by each method.
To over-plot column or row series from different locations, not necessarily adjacent to each other, use the present command to draw a line that is perfectly horizontal or vertical, along a single row or column, respectively. If you do not erase the plot line you can use Move Mode to add another series to the plot at a later time.
To over-plot or animate series within a range of rows or to plot a single row or a single averaged row, use the Column Profile or Row Profile command. You will not be able to add another row series to the plot at a later time.
The Line Profile is drawn into a Plot Window like that shown below. Notice that the horizontal axis is distance, not an absolute position as for Column and Row Profile Plots.
Line Profile Preferences, Adding Series to a Line Profile Plot, Plot Attributes, Column Profile Plot, Row Profile Plot
