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Making some intensity values of image to zero

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Gova ReDDy
Gova ReDDy il 23 Mag 2012
hi..
How to zero the unwanted pixel intensity values of a image to zero.

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Stephen
Stephen il 24 Mag 2012
if your image is 'a', try
a(a>threshold)=0;
or try
max(a,threshold);
which makes the values equal to your threshold. maybe it is useful
  1 Commento
Walter Roberson
Walter Roberson il 24 Mag 2012
The reverse, values less than the threshold are the ones to be set to 0 apparently.

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Walter Roberson
Walter Roberson il 23 Mag 2012
... Assign 0 to those matrix locations ?
Is there more to this question, such as automatically determining which pixels have "unwanted pixel intensity values" ?
  1 Commento
Gova ReDDy
Gova ReDDy il 24 Mag 2012
Yeah,I'm planning to give some threshold like pixel intensity values less than 30 should be equal to zero in the image.

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