<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>Hello;</DIV>
<DIV>Is there a suitable method to compute derivative of a few density values(50 sample grey scale values) which are obtained by interpolation. </DIV>
<DIV>Any suggestion or an example code will be really appreciated!</DIV>
<DIV> </DIV>
<DIV>Thanks in advance</DIV>
<DIV>Tony</DIV></div><br>
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