3DHISTECH Pannoramic 250 FLASH User Manual page 48

Pannoramic 250 FLASH 1.14 SP1 User's Guide
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Figure 28 – Scan everything within the marked are selected / not selected
General threshold options
Remove coverslip – If selected, the edges of the coverslip are not detected as specimen to
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be scanned.
Fill holes in scan area – If selected, the holes inside the specimen will also be scanned.
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Often these holes contain small sample objects that otherwise would not be scanned.
Remove specks – If selected, the scanner does not digitize objects smaller than the
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predetermined size. This helps filtering specks and other uninteresting objects out. Set the
maximum size of specks not to be digitized by adjusting the Speck size slider.
Scan area dilation – Adjust the slider To enlarge or decrease the scanned area. The edge is
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extended discretely by one image field of the camera each time.
March 30, 2011
Greater values result in a less sensitive scanning, but it is possible that some of the
smaller specimen areas will not be digitized.
Scan area inside the marker – If the specimen cannot be identified as required for
digitization, (for example, weak contrast), it can help to encircle completely the
specimen with a black marker pen. You have to draw a full circle with the pen to
enable the detection. Marker pen detection will make specimen detection easier by
limiting the scanned area.
If this option is selected, only the area encircled with a marker pen will be scanned.
You can define the threshold level by changing the threshold value in the Marker
threshold level selection box in the range of 0-255.
This sets the sensitivity of the specimen detection inside the marker area. To set the
desired threshold value manually, change the setting in the Specimen threshold
level selection box in the range of 0-255. The default value is 35.
To scan everything within the marked area, check the Scan everything within the
marked area selection box.
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