Convolution MATLAB Code | Convolution Image Processing | MATLAB Convolution Example

Convolution MATLAB Code | Convolution Image Processing | MATLAB Convolution Example

17:10

A=imread('image.jpg');

Image = rgb2gray(A);

M=[1/4,1/2,1/4;

   1/2,1,1/2;

   1/4,1/2,1/4];

r=2*size(Image,1)+1;

c=2*size(Image,2)+1;

C=zeros(r,c);

p=1;

for i=2:2:r-1

    q=1;

    for j=2:2:c-1

        C(i,j)=Image(p,q);

        q=q+1;

    end

    p=p+1;

end

R=zeros(r,c);

p=1;

for i=1:size(C,1)-2;

    q=1;

    for j=1:size(C,2)-2;

        sum=0;

        for a=1:3;

            for b=1:3;

                 sum=sum+C(i+a-1,j+b-1)*M(a,b);

            end

        end

      

        R(i+1,j+1)=sum;

        q=q+1;

    end

    p=p+1;

end

resultImage=uint8(R);

figure

subplot(1,2,1), imshow(Image);

subplot(1,2,2), imshow(resultImage);

truesize