function for zooming an image with pixel replication

Question

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what is a function for an image in matlab to be zoomed in using pixel replication ? without using imresize and any loops. thanks

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Answer 1

编辑：Walter Roberson 2017-1-1

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hi my friend

i have a book in image processing by matlab and i see a code for this function the author use it to enlarge an image pixels the code is:

pixeldub( the part of image , number of enlarge)

for example to cute a part from an image(g) and enlarge it let say top left for:

gtop=g(1:120,1:120);% top left section
gtop=pixeldub(gtop,4); % enlarge by pixel duplication.
figure, imshow(gtop,[]);

i hope that help ..

Walter Roberson 2017-1-1

Source code for that function does not appear to be available.

Answer 2

Image Analyst 2017-1-1

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Attached is a demo I got from the Mathworks that does this.