apply laplacian filter to image
Sun Mar 27, 2011 9:53 pm
Laplacian filter is a second derivative edge detector operator .Laplacian is more sensitive to noise than sobel and prewitt.Laplacian calculate the difference of center point to the surrounding pixels .
- Code:
clc;
%% create a new figure to show the image .
newImg = imread('Water lilies.jpg');
figure(1);
imshow(newImg);
figure(2);
%% create laplacian filter.
H = fspecial('laplacian');
%% apply laplacian filter.
blurred = imfilter(newImg,H);
imshow(blurred); title('Edge detected Image')
- Attachments
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- 1.GIF (85.99 KiB) Viewed 38328 times
Re: apply laplacian filter to image
Fri Jun 10, 2011 5:08 am
hi, do u know how to apply 3x3 laplacian filter with 8 at the center?
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