pixelation

how to apply pixelation of image in matlab

Answer 1

[DGM]

It can be simple enough:

inpict = imread('peppers.png');
sz = size(inpict);

blocksize = [10 10];
outpict = imresize(inpict,round(sz(1:2)./blocksize));
outpict = imresize(outpict,sz(1:2),'nearest');

imshow(outpict)

What if you want to only pixellize a part of the image?

inpict = imread('peppers.png');

% extract sample region
sample = inpict(142:255,192:324,:);
sz = size(sample);

% blockify it
blocksize = [10 10];
sample = imresize(sample,round(sz(1:2)./blocksize));
sample = imresize(sample,sz(1:2),'nearest');

% insert it back into the image
outpict = inpict;
outpict(142:255,192:324,:) = sample;

imshow(outpict)