Idec DATAVS2 Series Manuel d'utilisateur télécharger pdf (Page 54)

SVS2 Series Instruction Manual

8.5.4. Edge Count

Description

This control identifies all edges (edge detection ►) located inside the ROI.

Based on the first derivative of the pixel brightness variation function, the maximum positive peak is

identified if control is targeting a positive edge, or the maximum negative peak is identified when

targeting a negative edge. A point is considered an edge point when its brightness variation exceeds

this threshold, which is a function of the peak value found;

Selection

Pointer shape

Positioning

Click any point inside the work area to create a rectangular ROI with a small white square at 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.

Parameters

After clicking in the work area to create the ROI, the control panel displays the set of parameters that

enable control customisation.

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Idec DATAVS2 Series Manuel d'utilisateur Page 54