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Here is a MATLAB program for implementing a high-pass filter using a Gaussian kernel:
% Read the input image
inputImage = imread('input.png');
% Convert the input image to grayscale
grayImage = rgb2gray(inputImage);
% Apply the Gaussian filter
gaussianImage = imgaussfilt(grayImage);
% Subtract the original image from the filtered image to obtain the high-pass filtered image
highPassImage = grayImage - gaussianImage;
% Display the input image and the high-pass filtered image
subplot(1,2,1);
imshow(grayImage);
title('Input Image');
subplot(1,2,2);
imshow(highPassImage);
title('High-Pass Filtered Image');
Make sure to replace 'input.png' with the path to your input image file.
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