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on 26 Oct 2021
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figure('color','k')
text(0.,0.5,'MATLAB 20-th','FontSize',40,'Color','w')
axis off
I=(frame2im(getframe(gcf)))/255;
a=uint8(repmat(round(linspace(0,255,361)),71,1));
c=a.*(I(170:240,60:420,1));
x=flipud(c(:,7:361)');
u=[x repmat(c,5,1) x];
imagesc(u);
colormap([0 0 0;hot;flipud(hot)])
axis off
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