ThresholdEvaluateOperator 546 Magick++/lib/Magick++/Include.h using MagickCore::ThresholdEvaluateOperator; ThresholdEvaluateOperator 1066 magick/option.c { "Threshold", ThresholdEvaluateOperator, UndefinedOptionFlag, MagickFalse }, ThresholdEvaluateOperator 383 magick/statistic.c case ThresholdEvaluateOperator: