Bitwise nxor

Bitwise nxor operation on 2 input images More...

IPSDKIPLLOGICAL_API image::ImagePtr	ipsdk::imaproc::logic::bitwiseNXOrImgImg (const image::ImageConstPtr &pInIntImg1, const image::ImageConstPtr &pInIntImg2)
	wrapper function for bitwise nxor operation on 2 images More...
IPSDKIPLLOGICAL_API void	ipsdk::imaproc::logic::bitwiseNXOrImgImg (const image::ImageConstPtr &pInIntImg1, const image::ImageConstPtr &pInIntImg2, const image::ImagePtr &pOutImg)
	wrapper function for bitwise nxor operation on 2 images More...

Detailed Description

Bitwise nxor operation on 2 input images

On output image values are given by:

(with corresponding to the Bitwise not operator and corresponding to the Bitwise xor operator)

Input and output images must have same size and buffer type. Buffers must be of type integer

A Bitwise nxor operator applied to 2 integers performs the logical nand (abbreviation for "not exclusive or") operation on each pair of corresponding bits of the binary representation of these 2 integers. As shown in the truth table below, the result in each position is 1 if the two bits have the same value; otherwise, the result is 1.

Input bit #1	Input bit #2	Output bit :
0	0	1
0	1	0
1	0	0
1	1	1

For instance, if we compute the result of a Bitwise nxor on the two integers 5 and 3, we obtain;

   0101 (decimal 5)
!^ 0011 (decimal 3)
=  1001 (decimal 9)

See also

"Bitwise operation --- Wikipedia, The Free Encyclopedia", 2014, http://en.wikipedia.org/w/index.php?title=Bitwise_operation&oldid=604175200

Here is an example of a Bitwise nxor operation applied to two 2D binary images (black pixels have value 0, white pixels have value 1):

Attributes description

Attribute description for algorithm :

Name	ToolTip	Default Initializer
ipsdk::imaproc::attr::InIntImg1	[Input] First image for processing operation (data contained in image buffer are integers)	X
ipsdk::imaproc::attr::InIntImg2	[Input] Second image for processing operation (data contained in image buffer are integers)	X
ipsdk::imaproc::attr::OutImg	[Output] image for processing operation	ipsdk::imaproc::duplicateInOut (_pOutImg, _pInIntImg1)

Global Rule description

Global rule description for algorithm :
ipsdk::imaproc::matchSizeAndType (_pInIntImg1,_pInIntImg2,_pOutImg)

Example of Python code :

Example imports

import PyIPSDK
import PyIPSDK.IPSDKIPLLogical as logic

Code Example

    # opening of input images
    inImg1 = PyIPSDK.loadTiffImageFile(inputImgPath1)
    inImg2 = PyIPSDK.loadTiffImageFile(inputImgPath2)
    
    # bitwize 'nxor' computation
    outImg = logic.bitwiseNXOrImgImg(inImg1,  inImg2)

Example of C++ code :

Example informations

Associated library

IPSDKIPLLogical

Header file

#include <IPSDKIPL/IPSDKIPLLogical/Processor/BitwiseNXOrImgImg/BitwiseNXOrImgImg.h>

Code Example

        // open input images
        ImageGeometryPtr pImageGeometry = geometry2d(inType, sizeX, sizeY);
        ImagePtr pInImg1 = loadRawImageFile(in1Path, *pImageGeometry);
        ImagePtr pInImg2 = loadRawImageFile(in2Path, *pImageGeometry);

        // compute bitwise exclusive or on input images
        ImagePtr pOutImg = bitwiseNXOrImgImg(pInImg1, pInImg2);

See also

BitwiseNXOrImgImgLvl1

BitwiseNXOrImgImgLvl2

BitwiseNXOrImgImgLvl3

Function Documentation

bitwiseNXOrImgImg() [1/2]

IPSDKIPLLOGICAL_API image::ImagePtr ipsdk::imaproc::logic::bitwiseNXOrImgImg	(	const image::ImageConstPtr &	pInIntImg1,
		const image::ImageConstPtr &	pInIntImg2
	)

wrapper function for bitwise nxor operation on 2 images

Exceptions

ipsdk::processor::IPSDKBaseProcessingException

on failure

bitwiseNXOrImgImg() [2/2]

IPSDKIPLLOGICAL_API void ipsdk::imaproc::logic::bitwiseNXOrImgImg	(	const image::ImageConstPtr &	pInIntImg1,
		const image::ImageConstPtr &	pInIntImg2,
		const image::ImagePtr &	pOutImg
	)

wrapper function for bitwise nxor operation on 2 images

Exceptions

ipsdk::processor::IPSDKBaseProcessingException

on failure