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swCHIP 1991 January
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swCHIP_95-1.bin
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demo
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wit4711
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lib
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meas
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histroi.
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histroi.bin
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1995-12-09
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529b
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OPERATOR
histRoi --- compute greyscale frequency distribution within an ROI
DESCRIPTION
The histRoi operator computes a frequency distribution within the given region
of interest in the input image. This operator is identical in behaviour to
the histogram operator except that pixels within the an ROI are used to form
the histogram. A region of interest may be generated by using the getData
operator then sequencing the vector of graphical objects through this operator
and collecting results.