Mitsubishi P91DW User Manual Page 164

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Chapter 5: Analysis Tools
5-63
the spot the software will define. The greater the sensitivity number the more of the
object the software will find.
**HINT: Selecting a brighter pixel within the band (or spot) will have magic wand draw
a tighter area of interest. Correspondingly, a less intense pixel will draw a larger
perimeter around the selected spot**
Spot Type
Under the Spot Type heading the Bright Spots selection should be checked if the image
contains bright spots on a dark background (e.g. ethidium bromide stained fluorescent
gels and chemiluminescent blots). The Dark Spots selection should be made when the
sample contains dark sample on a light background (film, coomassie blue protein gels
etc..). The software should automatically determine this selection, but the user may
have to override it if the software incorrectly evaluates an image. Remember as in all
portions of AlphaEaseFC software if the image has been reversed (negative image)using
the Reverse selection on the Contrast Adjustment window the Dark Spot selection
should not be made. Reverse is a visual alteration only and does not effect the original
image capture data. (EG a chemiluminescent blot is captured using the Reverse mode in
order for it to appear as film, the correct selection is still Bright Spots).
Outline Type
Border Outline will use the edge detection methods to determine the spot area. The Box
Outline will draw a box shape around the sample usually including a significant portion
of background. User preference and image particulars will determine which outline type
is best.
Previous Location
Previous Location will automatically select the spot on the image last selected for magic
wand and apply any changes made for sensitivity. This feature is designed to quickly
evaluate how the different sensitivity numbers will affect the drawn area using the same
selected point in a spot. The X,Y coordinates are given for the previous spot as well.
Exit
Exit will remove the Magic Wand Parameter Window.
Auto Spot:
Auto Spot is a feature designed to find multiple spots within a region of interest. It is
accessed through AutoSpot under Auto Detect in the Spot Denso tab. Once it is selected
the following tab will appear and the cursor will be ready to draw an area of interest.
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