1. read an image. 2. use imnoise to add “salt and pepper” noises on it. 3. apply a 3x3 median filer to remove these noises. 4. display the three images above. 5. save the processed image in matlab

main.m
% Step 1: Read an image
image = imread('path/to/your/image.jpg');

% Step 2: Add "salt and pepper" noises using imnoise
noisyImage = imnoise(image, 'salt & pepper', 0.05); % Adjust the noise density as per your requirement

% Step 3: Apply a 3x3 median filter to remove the noises
filteredImage = medfilt2(noisyImage, [3 3]);

% Step 4: Display the images
figure;
subplot(1,3,1), imshow(image), title('Original Image');
subplot(1,3,2), imshow(noisyImage), title('Noisy Image');
subplot(1,3,3), imshow(filteredImage), title('Filtered Image');

% Step 5: Save the processed image
imwrite(filteredImage, 'path/to/save/processed_image.jpg');
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