laplacian_a.m

Image enhancement in spatial domain, the sources include histogram, laplacian, unsharp mask, and spa

%% Program to implement the Laplacian enhancement technique

close all;
clear all;


name = input('Enter the image name ---    ', 's')
size = input('Enter the size of filter ---  ')
filter = zeros(size,size);
for i=1:size
      for j=1:size
      element = input('Enter the elements of the matrix ---')
      filter (i,j) = element;
      end
end
image1=imread('house.bmp');
results=imfilter(image1, i);
imtool(results)
h=fspecial('average',3)
w=fspecial('laplacian',0)
g1=imfilter(image1,w,'replicate');
imshow(g1,[])
image2=im2double(image1);
g2=imfilter(image2,w,'replicate');
imshow(g2,[])
g=image2-g2;
imshow(g)