User guide

Quantity One User Guide
17-8
Fig. 17-6. Using the White/Blue slider.
Drag the White/Blue slider to the left until it is positioned between the two
peaks. The white colony data range is indicated by gold on the bar beneath
the histogram, and the blue colony data range is marked with blue.
As you drag the slider, the numbers of white and blue colonies will change in
the dialog box and in the text box on the image. Also on the image, you
should see the marked white colonies (gold triangles) change to blue colonies
(blue squares).
Note: If your blue colonies are not marked on the image, check to make sure
that the Mark Blue Colonies checkbox at the bottom of the dialog is
checked.
17.6 Ignoring a Region of the Dish
If a particular region of your Petri dish is damaged and you do not want to
consider the colonies (if any) that appear there in your final count, you can
use the Ignore Region function.
White peak
Blue peak
White/blue
division mark