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Julian
Posts:
3
Registered:
3/20/14


Colormapping Matrix with 9990% zeros and several peaks
Posted:
Mar 20, 2014 3:00 PM


I have a Matrix with values ranging from 0 to 2*pi, size of this matrix is 2000² (just as a reference) and there are very few values in there (a maximum of 2*32²).
Now i need a method or an idea to visualize this. What I have so far:
figure; image(Z1) %Z1=matrix<=size=2000*2000 colormap(jet)
Of course Finding those pixels is hard and they aren't a very good representation.
So my thougth was to make a convolution of the matrix with a 2Dgaussian curve (curve beeing normed at maximum to 1). But that seems a very crude methode and I have to use this a lot.
Furthermore I'd like it to exclude all zeros ( colormap from white (0) to blue(lowest) to red (highest)).
I really hope for some ideas or usefull matlab methods.
Thanks in advance



