Operators Dialog / Operator Details

§ 12.11.95 - Vignette

Scripting command: vignette [Contrast=-100...100] [Brit=-100...100] [Rad=0...100] [Cmult=0...9]

This operator can create vignettes (a darkening of the image towards the extents of the presumed lens that was used to acquire the image) or it can remove them.

Creating a vignette is done by reducing the brightness, and optionally reducing the contrast.

Removing a vignette created by an actual lens is done by increasing the brightness and almost certainly the contrast. As every lens produces a different level of vignetting, experimentation will be required to determine the correct values for a specific lens.

Radius controls how deeply the vignette, or anti-vignette, intrudes on the image content.

 

This manual was generated with wtfm wtfm uses aa_macro and SqLite wtfm and aa_macro are coded in python 2.7 iToolBox 3.12 This Documentation and Associated Application Executables are Public Domain