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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 filter.

Years ago, during the development of the first Mac, Bill Atkinson (of HyperCard, QuickDraw, MacPaint & now nature photography fame) discovered a very elegant dithering filter 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 more...

What's New

Version 1.3:
  • 12.5%, 25% & 50% reduced views
  • Optimized PNG export -- tiny, loss-less files!
  • Several redraw bugs related to the view menu have been fixed.

Requirements

Mac OS X 10.3 or later

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HyperDither User Discussion

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Cooper_Stan Member IconReview+0
Cooper_Stan
+1

Simple, easy in use and fast!

Reply0 replies
Version 1.3
Moog modular Member IconComment+41
Moog modular
+0

I use vers 1.1 to convert photos to b/w laser engravings.
But my laser app reads only pict files, not pngs.
So while I appreciate the continued work on this application, it just upgraded itself out of my ability to use it.

Reply1 reply
Version 1.2
Dalahast
+1

You can convert it to PICT with another app. Preview will do just fine, open the file and use File > Save As… and choose PICT in the drop-down box.

garlicbreath Member IconComment+17
garlicbreath
+1

Used to be able to select black and white as the color space for the saved file, which saved about half the file size when saving as PNG. Better for emailing. Now files are saved as 32-bit/millions of colors. Can this be changed?

Reply0 replies
Version 1.2
Dalahast Member IconReview+139
Dalahast
+1

YES YES YES! I used HyperDither when it first came out and I've been waiting and waiting for an update, thanks much!

Reply0 replies
Version 1.2
Macroxx Member IconComment+44
Macroxx
+1

This is a great program with very nice results and I hope, that "The Future" features, which are mentioned in the ReadMe file are going to be implemented soon.

:-)

Reply0 replies
Version 1.1
DLWormwood Member IconReview+1
DLWormwood
+0

Man, the nostalgia that this app brings back is luciously painful. HyperCard was what attracted me to the Mac in the first place, and I really missed the culture the Macsphere had in those days. This app perfectly recaptured the "monochrome" asethetic that early Mac apps had. I can see this app used to make web pages and Flash apps to reclaim the 1-bit retro look.

Reply0 replies
Version 1.0.1
Ancientyger Member IconReview+1
Ancientyger
+0

It's pretty fast, at least on smaller images. I wish this were an Image Unit for Core Image aware applications, with advanced controls. This would, then, be amazing.

Reply0 replies
Version 1.0.1
suzres Member IconReview+0
suzres
+0

very nice, simple, robust.
It is a pleasure to find again the very subtil black and white of Atkinson algorythm.

Reply0 replies
Version 1.0.1
Pecos Pete Member IconReview+0
Pecos Pete
+0

For a first run very good results, so far I'm pleased. Quick & easy, no mumbo jumbo.

Reply0 replies
Version 1.0.1
user icon+5
spacestation
Version 1.3
> 5 7

Ratings

Overall
(7)
Current Version (1.x)
(7)

Details

Downloads 6,012
Version Downloads 3,646
License Free
Date 18 Feb 2011
Platform OS X / PPC 32 / Intel 32
Price Free
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