Back to FabImage Library website

You are here: Start » Function Reference » Histogram » Histogram Basics » SkipEmptyHistogram

SkipEmptyHistogram


Header: FIL.h
Namespace: fil
Module: FoundationBasic

If the input histogram contains at least one bin, then it is copied to the output; otherwise Nil is returned.

Applications: Secures against domain errors caused by empty histograms, e.g. just before the HistogramAverage filter is to be invoked.

Syntax

C++
C#
 
void fil::SkipEmptyHistogram
(
	const fil::Histogram& inHistogram,
	ftl::Conditional<fil::Histogram>& outNotEmptyHistogram,
	bool& outIsNotEmpty
)

Parameters

Name Type Default Description
Input value inHistogram const Histogram& Input histogram
Output value outNotEmptyHistogram Conditional<Histogram>& The histogram, if it is not empty
Output value outIsNotEmpty bool& Indication if the input histogram is not empty