Resampling and quantization of image.

If the size of width and height of image are different, how to to resampling and quantization?

Answer 1

[Image Analyst]

You can use imresize() and specify either a saling equally in both directions, or you can specify the exact number of rows and columns you want the output image to have.

Answer 2

[yanqi liu]

clc; clear all; close all;
im = imread('football.jpg');
% make the same
wh = min([size(im,1) size(im, 2)]);
im2 = imresize(im, [wh wh], 'bilinear');
figure; 
montage({im,im2}, 'Size', [1 2], 'BackgroundColor', 'c', 'BorderSize', [3 3])

size(im2)

ans = 1×3

256 256 3