New XLD Operators

• The subpixel contour data type of HALCON (XLD) is a key technology for many high accuracy applications
• Besides this, it is a functionality that is offered by almost no other machine vision library

• To further extend the flexibility and ease of use two new operators are introduced

• test_self_intersection_xldallows to determine if a contour intersects itself (a preprocessing step for feature extraction)
• crop_contours_xldallows to clip contours against a rectangle by closing parts that partially lie outside