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exrpptm(1) General Commands Manual exrpptm(1) NAME exrpptm - performs tone mapping on an OpenEXR image (photoreceptor) SYNOPSIS exrpptm [options] input.exr output.exr DESCRIPTION Performs the tone mapping function described in this paper: Erik Reinhard and Kate Devlin. Dynamic Range Reduction Inspired by Photoreceptor Physiology. IEEE Transactions on Visualization and Com- puter Graphics (2004). The input image should be normalized, and the output file returned by this function should also be normalized before viewing. OPTIONS -f Controls the intensity of the resulting image. Valid range is from -8 to 8, defaulting to 0. -m Controls the contrast of the resulting image. Valid range is from 0.3 to 1.0. The default value of 0 uses an algorithm to calculate an appropriate m factor for the image based on its lu- minance. -c Amount of chromatic adaptation to apply to the image. Valid range is from 0 meaning no chromatic adaptation to 1 meaning fully adapted. Defaults to 0. -a Controls the light adaptation. Valid range is from 0 meaning that the adaptation is global to 1 meaning that the adaptation is based on pixel intensity. Defaults to 1, to trade detail visibility for contrast. AUTHORS Billy Biggs <vektor@dumbterm.net>. SEE ALSO exrtools(1). exrtools 0.4 December 2003 exrpptm(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | AUTHORS | SEE ALSO
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