How to remove data on left hand region of the image?

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Kennard Ng
Kennard Ng il 11 Feb 2019
Commentato: Kennard Ng il 11 Feb 2019
[x, y, frequency] = textread('SRAS_opt.txt','%f %f %f');
A2 = reshape(x,[200,200]);
B2 = reshape(y,[200,200]);
Vb = 24*10^-6*frequency;
V2b = reshape(Vb,[200,200]);
imagesc(V2b);
Task2d.jpg
I would like to remove the data on the left hand side region so I get a new velocity image.

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KSSV
KSSV il 11 Feb 2019
Use pcolor. Plot the color bar......See the limits and values.......which ever values you don't want replace them with NaN or remove them.....
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KSSV
KSSV il 11 Feb 2019
Let A be your data which is a matrix..and you want to remove values less than 1 say.
A(A<1) = NaN ;
h = pcolor(A) ;
h.EdgeColor = 'none' ;
colorbar

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