Saturday, January 30, 2010

Jag

HJag

We did a small wedding show today up at the Huntsman Center at the U. Totally unproductive as far as getting work but I met Mitch Burt of Zuma Photo. What an awesome guy! This image is the hood ornament on the Jaguar Limo outside.
One interesting thing about this image is that it illustrates the dangers of high jpeg compression. When you choose a lower quality image (not size, quality is usually listed as fine, medium, super fine, etc.) on your camera the processor lumps together similar colors in order to save space. So where there would normally be a slow transition across 100 slightly different colors of blue, all of which must have separate data information, the processor decides to convert it to 10 different colors of blue. You lose the data for 90 colors of blue which saves space but instead of getting a nice gradient you get banded lines that have abrupt changes from one color to the next. Look at the bottom middle of the image and you'll see it quite plainly. I'll tolerate it on a cell phone camera but if you ever see these lines (usually in a nice, blue sky) you know your camera is compressing the jpegs too much.Change the quality to super fine or live with the banding.

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