Subtraction between images with different dimensions

Subtract images with different dimensions. More...

IPSDKIPLARITHMETIC_API void	ipsdk::imaproc::arithm::genericSubtractImgImg (const image::ImageConstPtr &pInImg1, const image::ImageConstPtr &pInImg2, const image::ImagePtr &pOutImg)
	wrapper function for subtract images with different dimensions More...
IPSDKIPLARITHMETIC_API image::ImagePtr	ipsdk::imaproc::arithm::genericSubtractImgImg (const image::ImageConstPtr &pInImg1, const image::ImageConstPtr &pInImg2)
	wrapper function for subtract images with different dimensions More...

Detailed Description

Subtract images with different dimensions.

Subtraction of 2 images with different dimensions (volume with plan, volume color with volume...). The image with the highest dimensions is always have to be the first one.

The output image values are given by:

See Addition between images with different dimensions for illustrated example.

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::OutImg	[Output] image for processing operation	promoteBinary (_pOutImg, _pInImg1, _pInImg2, ipsdk::imaproc::ePromoteBinaryType::ePBT_Upper, true)

Global Rule description

Global rule description for algorithm :
(ipsdk::processor::If (
  ipsdk::imaproc::is2d (_pInImg2),
  ipsdk::processor::If (
   ipsdk::imaproc::isSequence (_pInImg2),
   ipsdk::processor::If (
    ipsdk::imaproc::isGrey (_pInImg2),
    (ipsdk::imaproc::matchSize (eMatchImageSizeType::eMIST_2d,_pInImg1,_pInImg2) && 
     ipsdk::imaproc::matchSize (eMatchImageSizeType::eMIST_T,_pInImg1,_pInImg2)),
    ipsdk::processor::Not (
     ipsdk::processor::none ())),
   ipsdk::processor::If (
    ipsdk::imaproc::isGrey (_pInImg2),
    ipsdk::imaproc::matchSize (eMatchImageSizeType::eMIST_2d,_pInImg1,_pInImg2),
    (ipsdk::imaproc::matchSize (eMatchImageSizeType::eMIST_2d,_pInImg1,_pInImg2) && 
     ipsdk::imaproc::matchSize (eMatchImageSizeType::eMIST_C,_pInImg1,_pInImg2)))),
  ipsdk::processor::If (
   ipsdk::imaproc::isSingle (_pInImg2),
   ipsdk::processor::If (
    ipsdk::imaproc::isGrey (_pInImg2),
    ipsdk::imaproc::matchSize (eMatchImageSizeType::eMIST_3d,_pInImg1,_pInImg2),
    ipsdk::imaproc::matchSize (eMatchImageSizeType::eMIST_XYZC,_pInImg1,_pInImg2)),
   ipsdk::processor::Not (
    ipsdk::processor::none ()))) && 
 ipsdk::imaproc::matchSize (_pInImg1,_pOutImg))

Example of Python code :

Example imports

import PyIPSDK
import PyIPSDK.IPSDKIPLArithmetic as arithm

Code Example

    # opening input images
    inGeometry = PyIPSDK.geometry2d(PyIPSDK.eImageBufferType.eIBT_UInt8, 510, 509)
    inImg1 = PyIPSDK.loadTiffImageFile(inputImg1Path)
    inImg2 = PyIPSDK.loadTiffImageFile(inputImg2Path)

    # images subtraction
    outImg = arithm.genericSubtractImgImg(inImg1, inImg2)

Example of C++ code :

Example informations

Associated library

IPSDKIPLArithmetic

Header file

#include <IPSDKIPL/IPSDKIPLArithmetic/Processor/GenericSubtractImgImg/GenericSubtractImgImg.h>

Code Example

        // open input images with different dimensions (3d and 2d in this case)
        ImageGeometryPtr pInputImageGeometry1 = geometry3d(inType, sizeX, sizeY, sizeZ);
        ImagePtr pInImg1 = loadRawImageFile(in1Path, *pInputImageGeometry1);
        ImageGeometryPtr pInputImageGeometry2 = geometry2d(inType, sizeX, sizeY);
        ImagePtr pInImg2 = loadRawImageFile(in2Path, *pInputImageGeometry2);

        // Compute subtraction of input images
        ImagePtr pOutImgAuto = genericSubtractImgImg(pInImg1, pInImg2);

        // Or create output image with the same dimensions than the first image
        ImageGeometryPtr pOutputImageGeometry = geometry3d(inType, sizeX, sizeY, sizeZ);
        boost::shared_ptr<MemoryImage> pOutImg(boost::make_shared<MemoryImage>());
        pOutImg->init(*pOutputImageGeometry);

        // compute subtraction of input images
        genericSubtractImgImg(pInImg1, pInImg2, pOutImg);

See also

GenericSubtractImgImgLvl1

Function Documentation

genericSubtractImgImg() [1/2]

IPSDKIPLARITHMETIC_API void ipsdk::imaproc::arithm::genericSubtractImgImg	(	const image::ImageConstPtr &	pInImg1,
		const image::ImageConstPtr &	pInImg2,
		const image::ImagePtr &	pOutImg
	)

wrapper function for subtract images with different dimensions

Exceptions

ipsdk::processor::IPSDKBaseProcessingException

on failure

genericSubtractImgImg() [2/2]

IPSDKIPLARITHMETIC_API image::ImagePtr ipsdk::imaproc::arithm::genericSubtractImgImg	(	const image::ImageConstPtr &	pInImg1,
		const image::ImageConstPtr &	pInImg2
	)

wrapper function for subtract images with different dimensions

Exceptions

ipsdk::processor::IPSDKBaseProcessingException

on failure