.. index:: ! conv                 

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conv          
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Synopsis
--------
**conv**  *idec jdec filter_file input output*


Description
-----------
**conv** 2-D image convolution                                  

Required Arguments
------------------
    
*idec*            

	Row decimation factor 

*jdec*            

	Column decimation factor 

*filter_file*     

	E.g. filters/gauss17x5 

*input*           

	Name of file to be filtered (I*2 or R*4) 

*output*          

	Name of filtered output file (R*4 only) 

Examples
--------
 ::

    conv 4 2 filters/gauss9x5 IMG-HH-ALPSRP109430660-H1.0__A.PRM test.grd

(makes and filters amplitude file from an SLC-file)

 ::

    conv 4 2 filters/gauss5x5 infile.grd outfile.grd 

(filters a float file)