Copyright © Fred Weinhaus My scripts are available free of charge for non-commercial (non-profit) use, ONLY. For use of my scripts in commercial (for-profit) environments or non-free applications, please contact me (Fred Weinhaus) for licensing arrangements. My email address is fmw at alink dot net. If you: 1) redistribute, 2) incorporate any of these scripts into other free applications or 3) reprogram them in another scripting language, then you must contact me for permission, especially if the result might be used in a commercial or for-profit environment. Usage, whether stated or not in the script, is restricted to the above licensing arrangements. It is also subject, in a subordinate manner, to the ImageMagick license, which can be found at: http://www.imagemagick.org/script/license.php Please read the Pointers For Use on my home page to properly install and customize my scripts. |
Applies slanted lighting to an image. |
last modified: December 15, 2018
USAGE: slantedlight [-a angles] [-i intensities] [-d distances] [-s smooth]
-a ... angles ........ angles towards which the light is directed; one or more PURPOSE: To apply slanted lighting to an image. DESCRIPTION: SLANTEDLIGHT applies slanted lighting to an image. Multiple directions of light may be applied with different intensities and lengths. ARGUMENTS: -a angles ... ANGLES towards which the light is directed. One or more comma or space separated values enclosed in quotes. Values are integers between 0 and 360 (degrees). Angle directions are clockwise from east. The default=0. -i intensities ... INTENSITIES corresponding to each light. One or more comma or space separated values enclosed in quotes. If the list of intensities is shorter than the list of angles, then the first intensity value will be used for missing entries. Values are integers greater then 0. The default=100. -d distances ... DISTANCES corresponding to each angle for which each light is directed. One or more comma or space separated values enclosed in quotes. If the list of intensities is shorter than the list of angles, then the first intensity value will be used for missing entries. Values are integers greater than or equal to 0. The default=30. -s smooth ... SMOOTH is the smoothing amount of the slanted lights. Values are floats greater than or equal to 0. The default=0 (no smoothing). -p percent ...PERCENT of white from thresholding used to create the slanted light. Values are integers between 0 and 100. The default=2. -c color ... COLOR of the slanted light. Any valid opaque IM color is allowed. The default=white. CAVEAT: No guarantee that this script will work on all platforms, nor that trapping of inconsistent parameters is complete and foolproof. Use At Your Own Risk. |
Example 1 - Variation In Intensities |
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Example 2 - Variation In Distances |
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Example 3 - Variation In Smoothness |
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Example 4 - Variation In Percent |
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Example 4 - Multiple Angles |
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Example 5 |
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What the script does is as follows:
This is equivalent to the following IM commands
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