Existing users, 
 HyperDither - 1.0.1convert images to 1-bit using the HyperCard algorithm |
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Information Related to Version:
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Product Description:
HyperDither is an OS X image processing utility that converts color or grayscale images to 1 bit black & white using a sophisticated dithering routine. Specifically, HyperDither implements the "Atkinson" dithering matrix.
Way back in the early days of Macintosh, Bill Atkinson (of QuickDraw, & MacPaint fame) developed a very elegant dithering matrix to convert greyscale image data to the 1-bit black & white Mac video display. The dithering produced by this routine was much higher quality than the now-a-days ubiquitous Floyd-Steinberg filter (used by QuickTime, PhotoShop). This algorithm has been unavailable for many, many years, until now!
Way back in the early days of Macintosh, Bill Atkinson (of QuickDraw, & MacPaint fame) developed a very elegant dithering matrix to convert greyscale image data to the 1-bit black & white Mac video display. The dithering produced by this routine was much higher quality than the now-a-days ubiquitous Floyd-Steinberg filter (used by QuickTime, PhotoShop). This algorithm has been unavailable for many, many years, until now!
Operating System Requirements:
This product is designed to run on the following operating systems:
- Mac OS X 10.4 PPC
- Mac OS X 10.3.9
- Mac OS X 10.3
- Mac OS X 10.2
- Mac OS X 10.1
Additional Requirements:
- HyperDither was developed on Mac OS X 10.4.7 - earlier versions back to 10.1 should work
- but have not been tested.
Screenshots:
Download Links:
Download HyperDither Version 1.0.1 (File Size: 1.3M)
Download Links:
Download HyperDither Current Version (File Size: 2.9M)
Your Installed Versions:
Feedback Summary:
| Version 1.0.1: | |||||
| Overall Rating: |  (5.0) |
Features: |  (4.0) |
Support: | (5.0) |
| Ease of Use: | (5.0) |
Quality / Stability: | (4.5) |
Price: | (5.0) |
Key to Types of Feedback:
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Troubleshooting 
Usage Tips 
Developer Notes 
Commentary 
Featured Reviews
Looks good. - Version: 1.0.1, 8/13/2006 04:13AM PST
(1 of 1 users found this comment useful)
obigwang
And what better you can say about a graphic software?
As an Hypercard user I remembered this dithering vs. the PC squared-pattern, but always think Photoshop's was the same. Wrong. Pattern in PS has a smaller grain, but tends to "blur" and loss details. HyperDither gives a more contrasty but richer in midtones image. It's a beautiful tool for image workers. Thank you!
(An idea coming off my mind is to convert this to a PS plugin, but this little thing is so quick that I don't know if it is really a good idea...)
Amazing! - Version: 1.0.1, 8/13/2006 03:52AM PST
(1 of 1 users found this comment useful)
Ronald P. Regensburg
I remembered this dithering, but I had forgotten how good it looked. Thank you for bringing it back to us.
The interface needs a little polishing (in export dialog the format menu and options button are too close and partly overlap).
The interface needs a little polishing (in export dialog the format menu and options button are too close and partly overlap).
