Specifications

Colortrac 24120 Product Sales Guide 16
7.3.1.2 4 Point joining
This is the alternative technique for joining sets of image data. Pairs of images to be joined are
prepared for processing by the operator using coloured pointers on screen. Scanworks uses
these locations to bring pairs of images into alignment. 4 Point is slightly more efficient because
it takes care of any skew error as part of the alignment process. A pair of markers is placed on
the same two locations as they are repeated in each of the overlapping parts of the two separate
scans as follows. Place the red arrow pair above two easily identifiable locations on the right
side image (see B & D). Now move to the left side image and place the blue arrow pair above
the same two points but on the other image containing the same data in an overlap (see A & C).
Now click JOIN.
4 Point joining in action
B.
C.
D.
BEFORE AFTER
CLOSE UP
A.
Red arrows placed
at the same
positions on the
same data in the
right hand image
Blue arrows
precisely located
at two easily
found positions on
the left image