ETcVnContoursMatchComparisonMethod
Offers comparison methods for contour matching.
Syntax
Definition:
TYPE ETcVnContoursMatchComparisonMethod :
(
TCVN_CMCM_CONTOURS_MATCH_I1 := 1,
TCVN_CMCM_CONTOURS_MATCH_I2 := 2,
TCVN_CMCM_CONTOURS_MATCH_I3 := 3
)DINT;
END_TYPE
Values
|
Name |
Description |
|---|---|
|
TCVN_CMCM_CONTOURS_MATCH_I1 |
Contours are compared using the sum over the differences between the reciprocal individual characteristics. |
|
TCVN_CMCM_CONTOURS_MATCH_I2 |
Contours are compared using the sum over the differences between the individual characteristics. |
|
TCVN_CMCM_CONTOURS_MATCH_I3 |
Contours are compared using only the maximum difference between the individual characteristics. |
Further information
The available methods are based on Hu invariants. The following algorithms are used, with A representing the first contour and B the second contour.
and 
with i in [1, 7] are each Hu moments of A and B.