How do I delete values of grayscale under 0.5 in a matrix?

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john creighton
john creighton le 4 Déc 2014
Commenté : john creighton le 4 Déc 2014
hey all I have a matrix with values of 0 to 1 in order to use grayscale, however I need to delete or set any value that is below 0.5 to zero. any suggestions? john

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Guillaume
Guillaume le 4 Déc 2014

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