The ROI can be managed by the buttons
- Paste - paste the ROI from the image to the scorpion clipboard
- Copy - copy the ROI to the image from the scorpion clipboard
Point & Click Clipboard Support
The rectangular roi
is defined by four points.
One point will change the center point.
More on Image Operations.
Match threshold and algorithm
- Threshold - default is 100 - can be lowered to increase the pattern
matcher's sensitivity
- Raw% - default 80% - defines the threshold used when
searching with decimated templates
- this is a percentage of the Threshold value. Lower
values will increase search time and sensitivity of tf3.
Note: selecting the right threshold and raw % can be difficult -
the proper thresholds can in many cases only be set when good templates and
polygon models are in place based on a large image set.
- Optimized rotation - use a slower and more
stringent matching algorithm
- when off a faster algorithm is used - this works ok
with smaller mask areas
- should be turned on using rotated
templates
Score calculation - a match is calculated from
both the template cross correlation result and the polygon match percentage
(polygon points that matched). These numbers are normalised and weighted by
the polygon match weight factor. Select 0% to ignore polygon match,
100% to ignore cross correlation in the total score.
Status
