image processing

Arithmetic operations addition,subtraction, division,and multiplication which is performed pixel by pixel between two images or among many images

Addition operation

which is also called pixel addition. addition operator add two images in pixel by pixel fashion .matlab coding is given below
coding :

>>ima1=imread(‘image1.tif’)
>>ima2-imread(‘image2.tif’);
>>sum=ima1+ima2;

addition can also done using in-build matlab command
>>imadd(ima1,ima2);

any integer value can be added to an image matrix

Subtraction operation

which is also called pixel subtraction. subtraction operator subtract two images in pixel by pixel fashion .matlab coding is given below
coding :
>>ima1=imread(‘image1.tif’)
>>ima2-imread(‘image2.tif’);
>>sub=ima1-ima2;

subtraction can also done using in-build matlab command
>>imsubtract(ima1,ima2);

any integer value can be subtracted from an image matrix

Multiplication operation

which is also called pixel multiplication. multiplication operator multiply two images in pixel by pixel fashion .matlab coding is given below
coding :
>>ima1=imread(‘image1.tif’)
>>ima2-imread(‘image2.tif’);
>>mul=ima1.*ima2;
dot(.) operator used to perform pixel wise operation

multiplication can also done using in-build matlab command
>>immultiply(ima1,ima2);

any integer value can multiply an image matrix

Division operation

which is also called pixel division.Division operator divide one image by other in pixel by pixel fashion .matlab coding is given below
coding :
>>ima1=imread(‘image1.tif’)
>>ima2-imread(‘image2.tif’);
>>mul=ima1./ima2;
dot(.) operator used to perform pixel wise operation.