vifx − Scale image data and convert to byte or float format

vfix [if=infile] [of=ofile] [-v] [-f] [-x]

Vifx scans all the images in a VisionX file to determine global scale factors to scale the pixel range from 0 to 255. Then all images are scaled and transformed to byte format using the one set of scale parameters. vfix(1) the -a parameter set performs a similar function except that scale parameters are computed individually for each image. Furthermore, vifx requires that all images be available for scanning before the first image can be output.

Vifx is useful for preprocessing sets of non-byte format images for viewing with xvx and for use with 3D image data.

Vfix affects all numeric pixel images in the input file.

-v

(verbose) the scale factors are printed to stdout.

-f

the output is float rather than byte format

-i

the output is a short with range -10000 to +10000 with the zero value maintained (useful for viewing float images)

-x

display the resulting image(s) with xvx rather than creating an output file.

A. P. Reeves