Simulating Film Grain

Questions and postings pertaining to the usage of ImageMagick regardless of the interface. This includes the command-line utilities, as well as the C and C++ APIs. Usage questions are like "How do I use ImageMagick to create drop shadows?".
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fmw42
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Location: Sunnyvale, California, USA

Re: Simulating Film Grain

Post by fmw42 »

a few simple tests on a gray image seem to indicate that -attenuate is more of an amplitude of noise rather than spacing of noise. values larger than 1 make the noise stronger in brightness and values smaller than one seem to make the noise less intense and barely visible
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fmw42
Posts: 25562
Joined: 2007-07-02T17:14:51-07:00
Authentication code: 1152
Location: Sunnyvale, California, USA

Re: Simulating Film Grain

Post by fmw42 »

I have posted to my web site below a filmgrain (noise) script to add film grain noise to an image.
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