Epson Net 5 사용자 설명서

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EdgeThreshold Property 
 
EdgeThreshold Property 
 
Applies To 
Vision Objects: Edge 
 
Description 
Sets the threshold percentage for which edges with grayscale variation below this value are ignored. 
 
Usage 
VGet  Sequence.Object.EdgeThreshold, var 
VSet  Sequence.Object.EdgeThreshold, value 
Sequence  Name of a sequence or string variable containing a sequence name. 
Object 
Name of an object or string variable containing an object name.  The object must exist in the 
specified sequence. 
var 
Integer variable that will contain the value of the property. 
value 
Integer expression for the new value of the property. 
 
Values 
Integer number from 1 - 100% 
Default: 2 
 
Remarks 
Use EdgeThreshold to reject edges along the search path with smaller grayscale variations.  During an edge 
search, the image in the search area is projected into one line of pixels.  Each pixel in the projection is a 
summation of all the pixels in the same column of the search area.  An edge value is determined for each 
pixel in the projection.  The EdgeThreshold rejects edges values below the setting.  
 
See Also 
Edge Object, Strength Result, StrengthTarget Property, StrengthVariation Property 
44 
Vision Guide 5.0 Reference (Ver.5.3) Rev.1