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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. Way back in the early days of Macintosh, Bill Atkinson (of HyperCard, QuickDraw, MacPaint & nature photography fame) developed 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 ubiquitous Floyd-Steinberg or "Error-diffusion" filter (used by QuickTime, PhotoShop).

The dither matrix was implemented an option in Apple's HyperScan software (A HyperCard stack with some XCMDs/XFCNs) that would connect to a flatbed scanner. HyperScan, and hence the most-excellent Atkinson dithering routine, has been unavailable for many, many years-but not forgotten! I was able to email Bill Atkinson in January, 2003 and inquire about the details of the algorithm; he was kind enough to respond with a brief write up of the routine-15 minutes later I had it up and running.
It's taken a few spare afternoons since 2003 to pack everything into a nice little application with documentation and an icon-better late than never!

The demos below show how the latest version of Apple's Safari web browser, new Macs, and new Apple mobile devices all support the capabilities of HTML5, CSS3, and JavaScript. Not all browsers offer this support. But soon other modern browsers will take advantage of these same web standards - and the amazing things they enable web designers to do.

Explore a comprehensive collection of guides, reference, and other resources for developing web applications and content for Safari. The Safari Reference Library provides detailed information for web developers on iPhone, iPod touch, Mac, and PC. These resources include guides and articles, API reference documents, sample code, release notes, and technical notes. Use these resources to learn about Safari's developer tools, visual effects, HTML and CSS support, JavaScript and DOM support, and other features and technologies. The library is organized by Topics and Resource Types.

142/160 for Chrome 5.0.371.0 (Official Build 43900) dev / Mac10.5.8

So, we code web sites by hand. And one day, it hit us: our web workflow was wonky. We'd have our text editor open, with Transmit open to save files to the server. We'd be previewing in Safari, adjusting SQL in a Terminal, using a CSS editor and reading references on the web. "This could be easier," we declared. "And much cooler."