davidkun / hyperspectraltoolbox Goto Github PK

Hi there, my env is Debian 8 x64, Octave 4.0.0.

Just cloned and loaded paths, as you suggest in Readme file. But both demos fail, sadly.

hyperDemo()

error: add_breakpoint: unable to find the requested function

hyperDemo2()

error: fgetl: invalid stream number = -1
error: called from
hyperReadAvirisSpc at line 19 column 9
hyperDemo2 at line 30 column 9
launch.m at line 7 column 1

If you have these files, kindly mail them on [email protected].

how can i implement hypermnf in demo? I have done:
%% Resample AVIRIS image
[h, w, p] = size(M);
M2d = hyperConvert2d(M);
M = hyperMnf(M2d, h, w);
.......
but returns error :
Error using eig
Input to EIG must not contain NaN or Inf.

Error in eigs/fullEig (line 1086)
[V,D] = eig(eigInputs{:});

Error in eigs (line 102)
fullEig(nargout);

Error in hyperMnf (line 48)
[A, mu] = eigs(tmp, p);

Error in hyperDemo2 (line 54)
M = hyperMnf(M2d, h, w);

Hello, thank you for sharing the hyperSam mapper function.

When I tried using it, I get the error below.
Error using dot
A and B must be the same size
Error in SAM
angleAB(k) = acos(dot(tmp, B) / (norm(B) * norm(tmp)));

A is a 1x144 vector and B is 13x144 vector. Is there anyway to get around using the dot command for two vectors of different sizes? Thank you.

Hi,

thank you very much for your work, it's really helpful!

I have found a few lines, where performance could be increased. In hyperCem a foor loop is used whereas you could use a vectorized form:

results = target'_Rinv_M/tmp;

Again, thank you!

Regards
hofa

Hi David, I am trying to contact you. Are you still developing this tool box? Please email me at [email protected]. -Isaac

because of the internet, it is difficult to download the data from the website directly.would you please send it to my email ,thank you
my e-mail: [email protected]