matlab 实现点击图像绘制相应像素点的光谱曲线

点击鼠标左键绘制对应光谱图像，点击鼠标中键暂停绘制，直到下一次点击鼠标中键再继续绘制

clc;close all;clear

t = Tiff('GF1.tif');
imageData = double(read(t));
imageData = normalize(imageData);

figure

fig = figure;
imshow(imageData(:, :, 3));

isPaused = false;
while true
    impixelinfo(fig);
    [x, y, button] = ginput(1);<