User guide

Quantity One User Guide
12-6
Density in Box
Density in Box displays the average and total intensity within a boxed region
on the image. Select Density in Box from the Density toolbar or View menu,
then define the region you want to measure by dragging your cursor across
the image.
Plot Density Distribution
Plot Density Distribution displays a histogram of the signal intensity
distribution for the part of the image displayed in the image window. The
average intensity is marked in yellow on the histogram.
The histogram will appear along the right side of the image. Use the Zoom
functions to display the histogram for magnified regions of your image.
Plot Cross-section
Plot Cross-section displays an intensity trace of a cross-section of the image
centered on the point where you click your mouse. The horizontal trace is
displayed along the top of the image, and the vertical trace is displayed along
the side of the image.
The intensity at the point you clicked on is displayed, as is the maximum
intensity along the lines of the cross-section. Dragging the mouse with this
function selected will continuously update the display.
Note: The density traces will appear slightly different than the traces for
functions like Plot Lane or Plot Band, because the sampling width for the
density traces is only one pixel.