PUBLIC MARKS from sbrothier with tags photography & photoshop

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 Macintosh, Bill Atkinson (of HyperCard, QuickDraw, MacPaint & now nature photography fame) discovered a very elegant dithering filter to convert greyscale image data for 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).

HDR (High Dynamic Range) Photography is a technique that is becoming very popular at the moment, an HDR photo is created using software such as Photoshop or Photomatix and produces images with more detail in the highlights and shadows. Here we digg out the best tutorials and resources to help you get to grips with it.

Automatic image enhancement for your digital SLR

technique de dingue

If you visit here regularly, you've probably noticed that I post a lot of High Dynamic Range, or HDR, stuff these days. Even if you don't, you've likely seen HDR photos all around the net as photographers both pro and hobbyist experiment with this emerging artistic format. Personally, I was pointed to it earlier this year by a fellow photographer & friend, Darren, and I've been having a ton of fun with it since.

Adjusting your photographs to get the color 'just right' can be a chore. Think about this: The Old Masters of painting spent years of their lives learning about color. Why let all their effort go to waste on the walls of some museum when it could be used to give you a hand with color correction?

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