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Image-Processing - Cglab

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YashaswiniPrashanth
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25 views3 pages

Image-Processing - Cglab

Uploaded by

YashaswiniPrashanth
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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7.Write a Program to read a digital image.

Split and display image into 4


quadrants, up, down, right and left.
% originalImage = imread('cameraman.tif');
originalImage = imread('peppers.png');
[rows, ncolumns, numberOfColorChannels] = size(originalImage);
[Y,X]=ndgrid(1:rows,1:ncolumns);
Jf=ncolumns+1-Y;
Q1=(Y<X & X<Jf);
Q2=(Y<X & X>Jf);
Q3=(Y>X & X>Jf);
Q4=(Y>X & X<Jf);
flippedImage = flipud(originalImage);
% Mask out Q1 | Q3
% Mask the image using bsxfun() function to multiply the mask by each
channel individually.
mask = Q1 | Q3;
maskedImage1 = bsxfun(@times, flippedImage, cast(mask, 'like',
originalImage));
mask = Q2 | Q4;
maskedImage2 = bsxfun(@times, originalImage, cast(mask, 'like',
originalImage));
finalImage = maskedImage1 + maskedImage2;
imshow(finalImage);

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