Matlab提取colormap

本文主要是介绍Matlab提取colormap，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

简介

• 使用Maltab依据截取的图片信息，提取colormap，供保存使用

Matlab代码

• 提取函数

function colormap_out=Extract_Colormap(inputfig, colormapsize)% Creat a colormap array from the input figure.
% The figure is a colormap which you like very
% you can use the colormap_out in such a way: colormap(out)% 
% when you plot your own figures...xist(inputfig,'file')
if ~exist(inputfig,'file') warning('You should provide a valid colormap figure!');return; 
end
colormap_out = zeros(colormapsize,3); 
A= imread(inputfig);
[I,J,K]= size(A);
Elong = max(I,J);
Eshort = int8(min(I,J)/2); 
i = linspace(3,Elong -2,colormapsize); 
i = int16(i);
if I>Jcolormap_out= A(i,Eshort,:); 
elsecolormap_out= A(Eshort,i,:); 
end  
colormap_out = squeeze(flipud(colormap_out));
colormap_out = double(colormap_out)/255;
end

• 提取示例

clear;clc
colormapsize=200;
inputfig = 'example.png'; 
colormap_out=Extract_Colormap(inputfig, colormapsize); 

这篇关于Matlab提取colormap的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！

---