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Matlab Program to Create a Image Processing Application Assignment Solution.


Instructions

Objective
Write a program to create an image processing application in matlab.

Requirements and Specifications

program to create a image processing application in matlab

Source Code

NEAREST

function gl = nearest(im, i, j)

i = round(i);

j = round(j);

% if j < 1 || j > size(im,2) || i < 1 || i > size(im,1)

% gl = 0;

% else

% gl = im(i,j);

% end

if ~((j<1) || (j>size(im,2)) || (i < 1) || (i > size(im,1)))

gl = im(i,j);

else

gl = 0;

end

end

ROTATE

function im1 = rotateImage(im, n)

% get size of image

[M, N, p] = size(im);

% Calculate the size of the new image

Mnew = round(M*sqrt(2));

Nnew = round(N*sqrt(2));

% Create a matrix of zeris with the new size

im1 = zeros(Mnew, Nnew, p);

% Loop through all points of the image

for i = 1:Mnew

for j = 1:Nnew

% New coordinates clockwise

inew = (i-Mnew/2)*cosd(n) - (j-Nnew/2)*sind(n)+M/2;

jnew = (i-Mnew/2)*sind(n) + (j-Nnew/2)*cosd(n)+N/2;

% Now, set

im1(i,j, :) = nearest(im, inew, jnew);

end

end

im1 = im1/255;

end