volSubSample

Brutally sub samples a vol file (division by 2 in each direction).

Usage: ./volumetric/volSubSample [OPTIONS] 1 [2]

Allowed options are :

Positionals:
  1 TEXT:FILE REQUIRED                  Input vol file.
  2 TEXT=result.vol                     Output filename.
 
Options:
  -h,--help                             Print this help message and exit
  -i,--input TEXT:FILE REQUIRED         Input vol file.
  -o,--output TEXT=result.vol           Output filename.
  -f,--function TEXT:{mean,none,max,min,mean}=mean
                                        Function used to the down-sampling: {none,max, min, mean}
 
Positionals:
  1 TEXT:FILE REQUIRED                  Input vol file.
  2 TEXT=result.vol                     Output filename.
 
Options:
  -h,--help                             Print this help message and exit
  -i,--input TEXT:FILE REQUIRED         Input vol file.
  -o,--output TEXT=result.vol           Output filename.
  -f,--function TEXT:{mean,none,max,min,mean}=mean
                                        Function used to the down-sampling: {none,max, min, mean}

Example: You can apply several sub sampling:

$ volSubSample $DGtal/examples/samples/lobster.vol lobster2.vol -f mean
$ volSubSample lobster2.vol lobster4.vol -f mean
$ volSubSample lobster4.vol lobster8.vol -f mean

You can display the result by extracting the surface using 3dVolMarchingCubes:

$ 3dVolMarchingCubes $DGtal/examples/samples/lobster.vol lobster.off -t 30
$ 3dVolMarchingCubes lobster2.vol -t 30 lobster2.off
$ 3dVolMarchingCubes lobster4.vol -t 30 lobster4.off
$ 3dVolMarchingCubes lobster8.vol -t 30 lobster8.off
$ meshViewer lobster.off lobster2.off  lobster4.off  lobster8.off -n

You should obtain such a result:

Resulting visualization.

See also

volSubSample.cpp