Has precisely two options: contrast and sharpness. This is a remarkably simple program - drag, drop, adjust, save. It should look nearly identical to the original. Now print it out, take the printed page to the copier, and make aĬopy. Fiddle with contrast and sharpness to see if another setting works.Launch HyperDither and drag your image to it.Save the image, preferably with a new name so you don't overwrite.The copier may have problems with such small dots.
Resolution to one your printer easily supports (that might be 300 dpi,ģ60 dpi, 600 dpi, or at most 720 dpi).
MAC OS PREVIEW DITHERING MAC
Why Dither?ĭithering is a neat way of creating images that look like theyīelong on an ancient Mac with a 1-bit black and white display, but If anything, it may sharpen aīit too much, but overall this is a great image. Retain the smoother gradients that Photoshop lost, and have cleanerĮdges than either of the earlier images. We've regained the facial detail lost in the default HyperDither scan, Image dithered in HyperDither with increased sharpness. Time to use HyperDither's sharpen filter: The Photoshop version is that the faces are not nearly as sharp. Wall in the background has smoother gradients, and you can better make You can see a lot more detail: the Mac itself isn't washed out, the Image dithered in HyperDither with default settings. Well, until Iĭid the same thing in HyperDither. I fiddled around quite a bit with the slider - and ended up exactly Resolution as the original Mac's display, using Photoshop Elements. Then created a dithered version at 512 x 342 pixels, the same I included a reduced color version of that photo and How well does it work in practice? Very well indeed!Ī while back a reader emailed me a high resolution color photo ofĪpple Store. HyperDither, which is now at version 1.2. Than happy to provide the routine, and that became the basis of
January 2003 to ask for details of his algorithm. "Atkinson dithering" was last used in Apple's HyperScan softwareĪnd was pretty much forgotten after that.īut Balestrieri didn't forget it, and he contacted Atkinson in Smoother dithered image than the Floyd-Steinberg filter that Photoshop The dithering algorithm developed by Bill Atkinson, the father of John Balestrieri, the programmer behind HyperDither, rediscovered Though it's free? Because it does one thing, and it does it better than If Photoshop can already dither, why bother with HyperDither - even Is normal or higher (higher usually looks better). You launch the program,ĭrag an image to it, and it dithers it. HyperDither eliminates all of that bother.
And you can spend quite a bit of time adjusting Only do they have a dithering option, but you can adjust it over a wide Photoshop Elements and GraphicConverter include a dithering option.
You may think that's nothing special, as even low-end programs like In fact, it only does one thing - it dithers images. Photoshop and even Photoshop Elements, its feature-set is incredibly In the second category, and compared to image editing powerhouses like Some programs seem to do a thousand different things.
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