How to add certain elements of an array
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Alan Keenan
el 25 de Ag. de 2020
Comentada: Alan Keenan
el 25 de Ag. de 2020
I have two 200 x 200 arrays of pixel values.
They are all negative values representing -dB values
All of the signal pixel values are >= -20.
All other pixel values (no signal) have been forced to -60.
I want to add both arrays so that only the signal pixels are added to have a summated signal intensity.
This relates to TFM imaging in Ultrasonics.
2 comentarios
MaHa
el 25 de Ag. de 2020
Convert your -60 values into NaNs :
noSignal = find(A == -60);
A(noSignal = NaN);
Then do your addition
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