Pattern match – IDEC DATAVS2 Series User Manual

Page 60

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SVS2

Series

Instruction

Manual

55

8.5.6. Pattern Match


Description

The term pattern match signifies a process that searches for a pattern similar to the master image
inside the target image using its brightness matrix. (Pattern match ►)


Once the ROI has been set, the control calculates the edge points (features) that show significant
differences in pixel brightness. All features are displayed in the form of small yellow squares.

Selection



Pointer shape



Positioning

Click any point inside the work area to create two rectangular ROIs; the innermost ROI is the
reference ROI, the outermost ROI is the search ROI. Both ROIs feature a small white square in the
bottom right corner.


To change ROI size, left-click and drag the square.
To move the ROI, place the pointer on any side of the ROI. The pointer changes to a cross. Press and
hold the left mouse button and drag the rectangle to the desired position.


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