在MATLAB中填充图像 [英] Padding an image in MATLAB

问题描述

我的图片大小为61x56，我想将图片填充为392x392。

I have an image of size 61x56 and I want to pad the image to size 392x392.

我正在尝试使用 padarray 但由于我得到一个非整数值，我无法做到这一点。谁能帮我这个。非常感谢！我附上了我想要做的事情。

I am trying to use padarray but since I get a non-integer value I am unable to do this. Can anyone help me with this. Thanks a lot! I have attached what I want to do below.

K = imread('test.jpg');
K = rgb2gray(K);
[m n] = size(K);
p = 392;
q = 392;
K_pad = padarray(K, [(p-m)/2 (q-n)/2], 'replicate');

推荐答案

你可以划分你的 padarray 两个电话中的指令：

You can divide your padarray instruction in two calls:

K_pad = padarray(K, [floor((p-m)/2) floor((q-n)/2)], 'replicate','post');
K_pad = padarray(K_pad, [ceil((p-m)/2) ceil((q-n)/2)], 'replicate','pre');

但是你可能想检查图像角落里发生了什么，看它是否正常你想用它做什么。

But you may want to check what is happening in the corners of the image to see if it is ok with what you want to do with it.

这篇关于在MATLAB中填充图像的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！