Intel® Integrated Performance Primitives (Intel® IPP) Developer Guide and Reference

ID 790148
Date 10/31/2024
Public
Document Table of Contents

CountInRange

Computes the number of pixels within the given intensity range.

Syntax

Case 1: Operation on one-channel data

IppStatus ippiCountInRange_<mod>(const Ipp<datatype>* pSrc, int srcStep, IppiSize roiSize, int* counts, Ipp<datatype> lowerBound, Ipp<datatype> upperBound);

Supported values for mod:

8u_C1R

32f_C1R

Case 2: Operation on multi-channel data

IppStatus ippiCountInRange_<mod>(const Ipp<datatype>* pSrc, int srcStep, IppiSize roiSize, int counts[3], Ipp<datatype> lowerBound[3], Ipp<datatype> upperBound[3]);

Supported values for mod:

8u_C3R

32f_C3R

8u_AC4R

32f_AC4R

Include Files

ippi.h

Domain Dependencies

Headers: ippcore.h, ippvm.h, ipps.h

Libraries: ippcore.lib, ippvm.lib, ipps.lib

Parameters

pSrc

Pointer to the source image ROI.

srcStep

Distance in bytes between starts of consecutive lines in the source image.

roiSize

Size of the source ROI in pixels.

counts

The computed number of pixels within the given intensity range. An array of 3 values in case of multi-channel data.

lowerBound

Lower limit of the intensity range.

upperBound

Upper limit of the intensity range.

Description

This function operates with ROI (see Regions of Interest in Intel IPP). This function computes the number of pixels in the image which have intensity values in the range between lowerBound and upperBound (inclusive).

In case of a multi-channel image, pixels are counted within intensity range for each color channel separately, and the array counts of three resulting values is returned. The alpha channel values, if present, are not processed.

Return Values

ippStsNoErr

Indicates no error. Any other value indicates an error or a warning.

ippStsNullPtrErr

Indicates an error condition if pSrc pointer is NULL.

ippStsSizeErr

Indicates an error condition if roiSize has a field with zero or negative value.

ippStsStepErr

Indicates an error condition if srcStep has a zero or negative value.

ippStsRangeErr

Indicates an error condition if lowerBound exceeds upperBound.