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UvumiTools Gallery 1.0.2 (Default branch)
07-23-2008
UvumiTools Gallery allows you to display fancy photo galleries on your Web site without requiring you to be a master programmer. All you need to do is include a couple JavaScript and CSS files, and customization is simple. License: MIT/X Consortium License Changes:|
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LIGHT_CORRECT(1) General Commands Manual LIGHT_CORRECT(1) 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. SEE ALSO
header(1), vips(1) COPYRIGHT
The National Gallery and Birkbeck College, 1989-1996. 14 Oct 1996 LIGHT_CORRECT(1)