Hello matlab community.
I am working on a project, the first part of the project that ı need to understand basic idea of the code below. Can anybody explain ?
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function h=simage(img,numcolor,axistype,minimg,maximg);
imscale=0; if ~exist('axistype')
end
if ~exist('minimg') & ~exist('maximg')
imscale=1;
else
if (~exist('maximg'))
maximg=max(img(:));
end
if (~exist('minimg'))
minimg=min(img(:));
end
if (maximg==0 & minimg==0)
minimg=min(img(:));
maximg=max(img(:));
end
end
if ~exist('numcolor') numcolor=64; end
if imscale==0 h=imagesc(img,[minimg maximg]); else h=imagesc(img); end
axis(axistype);
end
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if you run the code shown below with the first one together , you will see the some figure like a particle. ---------------------------------------
function ipi=ipf(cr,D,w)
ipi=(1-tanh((abs(cr)-D/2)/w))/2;
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For example I do not understand the meaning of exist in the first code. What is it used for ?
I do not have a much time, I look at some matlab books but I can not find anything about the situation. Please help..
Thank you..
