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fhisto

$ \bigcirc$Name


fhisto Compute the histogram of a Fimage




$ \bigcirc$Command Synopsis


fhisto [-l l] [-r r] [-n n] [-s s] [-t] input output



-l l : left bound of sampling interval

-r r : right bound of sampling interval

-n n : number of cells (if no option specified: 100)

-s s : size of each cell (alternate option)

-t : truncate values outside interval

input : input Fimage

output : output Fsignal




$ \bigcirc$Function Summary


Fsignal fhisto (in , out , l , r , n , s , t )

Fimage in ;

Fsignal out ;

float *l , *r ;

int *n ;

float *s ;

char *t ;




$ \bigcirc$Description


This module computes the histogram of a Fimage. The histogram is given in the Fsignal type. It counts the number of pixels having a value belonging to a certain cell (interval) of a uniform grid. The size and the position of these cells can be specified in different ways using all combinations of the options. The -t option tells whether the values outside the specified interval should be ignored or counted on the boundary cells.




$ \bigcirc$See Also


ll_boundaries, ll_edges.


$ \bigcirc$Version 1.4


Last Modification date : Sun May 2 17:53:04 2004


$ \bigcirc$Author


Lionel Moisan






next up previous contents index
Next: flgamma Up: Reference Previous: fcontrast   Contents   Index
mw 2004-05-05