This is the command light_correct that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
light_correct - correct illumination errors on set of images
SYNOPSIS
light_correct grey image1 image2 image3 ...
DESCRIPTION
The first argument should be an image of a piece of grey card, subsequent arguments should
be images taken with the same lighting set-up which need correcting. The corrected images
are written to files prefixed with "ic_".
For example, suppose you have a directory with the following files in:
example% ls
dat1.1.v dat1.2.v dat2.1.v dat2.2.v dat3.1.v dat3.2.v
dat4.1.v dat4.2.v grey.v
then run light_correct like this:
example% light_correct grey.v dat*.v
to generate this:
example% ls
dat1.1.v dat1.2.v dat2.1.v dat2.2.v dat3.1.v dat3.2.v
dat4.1.v dat4.2.v grey.v
ic_dat1.1.v ic_dat1.2.v ic_dat2.1.v ic_dat2.2.v ic_dat3.1.v
ic_dat3.2.v ic_dat4.1.v ic_dat4.2.v
light_correct works by smoothing out the grey card image, finding grey-mean/pixel for each
point, and then multiplying the result by all the following images. It also removes any
.desc files it generates, to avoid problems with im_global_balance(3).
RETURN VALUE
returns 0 on success and non-zero on error.
Use light_correct online using onworks.net services