measures of similarity between two images More...

IPSDKIPLGLOBALMEASURE_API ipsdk::imaproc::attr::SimilarityStatsPtr	ipsdk::imaproc::glbmsr::similarityMsr (const ipsdk::image::ImageConstPtr &pInImg1, const ipsdk::image::ImageConstPtr &pInImg2)
	wrapper function for measures of similarity between two images More...

Detailed Description

measures of similarity between two images

Computes similarity measures between two images.

See ipsdk::imaproc::attr::SimilarityStats for a complete list of image similarity measures processed by this algorithm.

Attributes description

Attribute description for algorithm :

Name	ToolTip	Default Initializer
ipsdk::imaproc::attr::InImg1	[Input] First image for processing operation	X
ipsdk::imaproc::attr::InImg2	[Input] Second image for processing operation	X
ipsdk::imaproc::attr::OutSimilarityStats	[Output] Similarity statistics bewteen two images	ipsdk::processor::allocate (_pOutSimilarityStats)

Global Rule description

Global rule description for algorithm :
ipsdk::imaproc::matchSizeAndType (_pInImg1,_pInImg2)

Example of Python code :

Example imports

import PyIPSDK

import PyIPSDK.IPSDKIPLGlobalMeasure as glbmsr

Code Example

    # opening of input images
    inImg1 = PyIPSDK.loadTiffImageFile(inputImgPath1) 
    inImg2 = PyIPSDK.loadTiffImageFile(inputImgPath2) 
    
    # similarity measurement
    similarityMsrResult = glbmsr.similarityMsr(inImg1, inImg2)
    
    # retrieve measurement results
    sumSquareDiff = similarityMsrResult.sSD
    print("Sum of Squared Differences between two images " + str(sumSquareDiff))

Example of C++ code :

Example informations

Associated library

IPSDKIPLGlobalMeasure

Header file

#include <IPSDKIPL/IPSDKIPLGlobalMeasure/Processor/SimilarityMsr/SimilarityMsr.h>

Code Example

        // open input image
        ImageGeometryPtr pImageGeometry = geometry2d(type, sizeX, sizeY);
        ImagePtr pInImg1 = loadRawImageFile(in1Path, *pImageGeometry);
        ImagePtr pInImg2 = loadRawImageFile(in2Path, *pImageGeometry);
        // compute statistic measures on input image
        SimilarityStatsPtr pRes = similarityMsr(pInImg1, pInImg2);
        // retrieve associated results value
        const ipUInt64 pixCount = pRes->getValue<SimilarityStats::PixCount>();
        const ipReal64 ssdValue = pRes->getValue<SimilarityStats::SSD>();
        const ipReal64 mseValue = pRes->getValue<SimilarityStats::MSE>();
        const ipReal64 psnrValue = pRes->getValue<SimilarityStats::PSNR>();

See also: SimilarityMsrLvl1; SimilarityMsrLvl2; SimilarityMsrLvl3

Function Documentation

◆ similarityMsr()

IPSDKIPLGLOBALMEASURE_API ipsdk::imaproc::attr::SimilarityStatsPtr ipsdk::imaproc::glbmsr::similarityMsr	(	const ipsdk::image::ImageConstPtr &	pInImg1,
		const ipsdk::image::ImageConstPtr &	pInImg2
	)

wrapper function for measures of similarity between two images

Exceptions

ipsdk::processor::IPSDKBaseProcessingException on failure