Teph's Tricks


I've made a few plug-in filters using Filter Factory. These filters are usable by Paint Shop Pro and Photoshop and any other paint program that can use *.8bf filter files. If you get errors about missing files or incorrect installations you are probably missing one of these DLLs in your windows/system directory.

To download a filter right click on the link and choose 'Save target as...' To install a filter just unzip it into your plug-ins directory (I recommend using a subdirectory called 'tephs') and start your paint program. Make sure your paint program is set up to search subdirectories for plug-ins!


Geometric - Transparency - Luminance

Transparency filters require an alpha channel to work (in PSP you must promote the background to a layer before applying them).

 

Red Transparency - Green Transparency - Blue Transparency

These filters use the color value of a pixel to set the transparency of that pixel.
[Sample images have a pattern fill layer under the layer the filter has been applied to in order to display the effect.]

Download all three color transparency filters

Red TransparencyGreenTransparencyBlue Transparency

A similar effect that does not remove as much color is achieved with the Eliminate White filter or an inverse luminosity mask.


 

Inverse Red Transparency - Inverse Green Transparency
Inverse Blue Transparency

These filters use the inverse of the color value of a pixel to set the transparency of that pixel.
[Sample images have a pattern fill layer under the layer the filter has been applied to in order to display the effect.]

Download all three inverse color transparency filters

Inverse Red TransparencyInverse Green TransparencyInverse Blue Transparency


Dark to Transparent - Turn 'darkness' values transparent based on a sliding threshold value. The darkest color value for the pixel determines the opacity of the pixel. Dark to Transparent
Light to Transparent - Turn 'lightness' values transparent based on a sliding threshold value. The lightest color value for the pixel determines the opacity of the pixel. Light to Transparent

 

The following filters require an alpha trasparency in the layer to work.

Alpha Black - Converts transparent areas to black, opaque areas to white, and partially transparent areas to shades of grey.

Alpha Black
Alpha White - Converts transparent areas to white, opaque areas to black, and partially transparent areas to shades of grey. Alpha White

Geometric - Transparency - Luminance


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©2000-2001 Lynn A. Davis