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The measurements that form an image show statistical fluctuations. The image is characterised by a probability density function (PDF). The PDF ''f'' describes the probability of the occurrence of a discrete grey level ''q'' in the range of grey levels ''Q''.

{{{#!latex
$\sum_{q=1}^Qf_q=1$
}}}

Random variables

The measurements that form an image show statistical fluctuations. The image is characterised by a probability density function (PDF). The PDF f describes the probability of the occurrence of a discrete grey level q in the range of grey levels Q. 

latex error! exitcode was 2 (signal 0), transscript follows:

Probability density functions and histograms

/ExampleCode

LehreWiki: SiaProgrammingPythonImageProc/Statistics (last edited 2008-07-09 11:24:32 by anonymous)