四叉树分解 [英] Quadtree decomposition

问题描述

我尝试使用以下代码对四叉树进行分解，但是每次遇到错误时都如此.

I tried the quadtree decomposition using the following code, but every time I am getting an error.

>> I=imread('hyd.tif');

>> S=qtdecomp(I)

或

>> I=imread('hyd.tif');

>> S=qtdecomp(I,.27)

错误:

??? Error using ==> qtdecomp>ParseInputs at 145

A must be two-dimensional

Error in ==> qtdecomp at 88

[A, func, params, minDim, maxDim] = ParseInputs(varargin{:});

推荐答案

罪魁祸首是由于您的图像为彩色或RGB.使用该算法之前，请尝试将图像转换为灰度.

The culprit is due to your image being in colour or RGB. Try converting the image to grayscale before using the algorithm.

I = imread('hyd.tif');
Igray = rgb2gray(I);
S = qtdecomp(Igray);

还请确保您的图片尺寸为2的幂，否则四叉树分解算法将不起作用.

Also make sure that your image dimensions are of a power of 2 or else the quadtree decomposition algorithm will not work.

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