IPhistogram

Synopsis

construct the histogram of an image

Input Port

src	ip_Image_in
roi	ip_Roi_in

Parameters

nbins	int	number of individual bins to count over
low	float	lower limit of data range
high	float	upper limit of data range

Output Port

nbins	int
bins	int

Description

IPhistogram constructs the histogram of an image and outputs an array of size nbins whose values are the counts of the occurrences of each value. It has lower and upper limits and a region-of-interest control.

Input

src

A reference to an ip_Image.

roi

A reference to an optional ip_Roi. The data must be of type byte.

Parameters

nbins

The number of bins to count over.

low

The lower limit of the data range to be counted.

high

The upper limit of the data range to be counted.

Output Port

nbins

The input parameter exported as an output port for convenience in linking with downstream modules such as the uniform scalar field Field Mapper.

bins

An array of integers, nbins long, whose values are the histogram counts. The uniform_scalar field mapper can convert this output into a field for subsequent downstream processing.

Example

Libraries.Examples.Image_Processing.IPhistogram

The following figure illustrates IPhistogram in a network.

File

v/ip.v

See also

Not applicable.