Free Adobe Photoshop Plug-ins

Here are filter plug-ins for Adobe Photoshop 3.0 for Macintosh.
These are charity-wares. You are welcome to distribute and use them freely. But, If you appreciate them, please make a donation of any amount to your favorite charitable organization. One donation of any amount is sufficient for all plug-ins.

Copyright (c) 1996-8 by Hugh Kawahara. All rights reserved.

Download colleen's Photoshop Fun Pack 1.2.0 (updated on 6/21/98, 310k bytes).
This includes the following five filter plug-ins.

Adjust Saturation
Create B/W
Kwick Mask
Modulate Color
Rotate Color
Variable Blur

System Requirements

Any Macintosh computer running Adobe Photoshop 3.0.0 or later.
Will not work with older versions.
FPU not required.
There is no plan for Windows versions.

Common Features (or 10 Reasons to Download)

Full size preview window which is movable, resizable, scrollable and zoomable.
Small thumb nail preview for quick preview (except for Kwick Mask).
Toolbox similar to that of Photoshop. Very intuitive to Photoshop users.
Background processing. They just don't wait "OK" button.
Semi-modeless operation. You can do the filtering while you are goofing off on AOL.
The progress box gives you an estimate of the finishing time.
Small memory requirement (except for Kwick Mask).
Ugggh... I run out of idea.
...still no idea.
...and Now, they are all fat!.

Downloading and Installing Plug-ins

The file is compressed and encoded ("*.sit.hqx" files). Many (most of?) Web browsers automatically decode and expand it for you. But if not, you'll need StuffIt Expander or similar software. After decoding and expanding the file, move it (it'll be a folder) into the "Plug-ins" folder in your "Adobe Photoshop" folder and (re)start Photoshop. Please see the "Read_Me" and "*.doc" files in the folder for usage.

The Plug-ins

Rotate Color
This is the most fun plug-in of all. It rotates the color in the RGB space. Confused?
Create B/W
This is the coolest plug-in of all, if you are into B/W photography. It creates black and white (gray scale) images from color images. It lets you adjust the ratio of red, green, and blue in the final gray scale image. It also allows you to adjust the brightness and contrast. Now 1.1.x does CMYK as well as RGB images.
Kwick Mask
This could be the most useful plug-in of all. It's a tool rather than a filter. It creates a selection from RGB images. It works similar to "Color Range" command in Photoshop, but it lets you set the tolerance explicitly in either HSB or RGB mode. It also allows you to use up to 31 sets of tolerances.
It requires extra (image_width*image_height) bytes of memory.
Adjust Saturation
This plug-in gives you more control over the saturation adjustment. It can adjust the "contrast of the saturation". By increasing this contrast, you can saturate the saturated color even more, and saturate the un-saturated color even less. This filter conserves either the luminance Y = 0.30R + 0.59G + 0.11B or the intensity I = (R + G + B)/3. Conserving the luminance Y usually gives better results.
Modulate Color
This plug-in modulates the HSB (hue, saturation, and brightness) value of the image using the mask value. The saturation and brightness control work very similar to those of Photoshop's Hue/Saturation adjustment. The difference is that, with this filter, the mask value determines the amount of hue rotation rather than the opacity of the effect. Therefore, it is essential to use density masks with values between 0 and 255 rather than simple masks with value 0 and 255 only.
Variable Blur
You can control the blur radius of each pixel using this plug-in. The opacity control lets you ajust soft-focus effects very easily.

Misc. Notes

You DO need Photoshop 3.0.0 or later.
They are now "fat" code resources.
Theoretically, all plug-ins, except Kwick Mask, should work with applications that support Photoshop 3.0 plug-ins. However, the author will not support any applications other than Adobe Photoshop.

How to Reach Me

Please send bug-reports/comments/whatever to the address shown below.

To FTP Site Providers

You are welcome to carry my plug-ins without a permission. But if you do, please check the update every once in a few months.

Acknowledgments

All plug-ins were developed using