matlab流星雨代码

以下是一个用Matlab编写的模拟流星雨的代码示例:

% 极坐标变换
polarPic = polarTransf(windPic(:,end:-1:1)');
function resultPic = polarTransf(oriPic)
    oriPic = double(oriPic);
    [m, n = size(oriPic);
    [t, r = meshgrid(linspace(-pi, pi, n), 1:m);
    M = 2*m;
    N = 2*n;
    [NN, MM = meshgrid((1:N)-n-0.5, (1:M)-m-0.5);
    T = atan2(NN, MM);
    R = sqrt(MM.^2 + NN.^2);
    resultPic = interp2(t, r, oriPic, T, R, 'linear', 0);
    resultPic = uint8(resultPic);
end

% 模拟流星雨
function resultPic = wind(oriPic, len, ratio)
    oriPic = double(oriPic);
    for i = 1:len
        tempPic = [zeros(size(oriPic,1), 1), oriPic(:,1:(end-1))].*ratio;
        oriPic(oriPic < tempPic) = tempPic(oriPic < tempPic);
    end
    resultPic = uint8(oriPic);
end

% 生成随机点图片
blackPic = uint8(zeros(800, 800));
distPic = imnoise(blackPic, 'gaussian', 0, 0.1);
distPic(distPic < 254) = 0;

这段代码包含了几个函数，分别用于进行极坐标变换、模拟流星雨和生成随机点图片。你可以根据需要进行调整和修改。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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