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Empireoflight's Journal

empireoflight
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04/21/2008 10:45 #44078

Weird photoshop antialiasing

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I made that by drawing a circle-shape in a 12x12 pixel file in photoshop, and snapping the shape to a 1x1 pixel grid. It should be perfectly symmetrical, both horizontal and vertical.
Why are pixels that should be the same value different?

weird...
empireoflight - 04/21/08 14:47
Thanks for the comment enknot, it's true that photoshop makes the squares grey because the vector falls between two pixels. It probably uses some calculus to figure out the percentage of the pixel that lies inside the vector vs. outside and shades the pixel to that level of gray. But those pixels I'm pointing out should technically have the exact same section of the vector lying across them, just rotated/flipped. So it makes no sense why photoshop doesn't color shade those pixels exactly the same gray.
enknot - 04/21/08 14:30
It think it's because squares are not circles, and can never really make them, but it's easy enough to trick the human eye if you use some averages and percentages.

The % of the square that was inside the circle probably directly correlates to the amount of gray it is.

This is just an (educated) guess, but if you calculated the amount of space that those squares overlap with that circle, you could find the ratio that the pshop people use to calculate anti-aliasing stuff...

just a guess though really.

04/18/2008 23:05 #44047

leopard
Just got it on my macbook pro. Plus I got 2 gig ram, so if things seem faster, I can't be sure if its the os or the ram. I like the perpendicularity of the icons...I don't quite "get" the meaning of the icons though. E.G., why is library represented by a classical temple?

04/14/2008 12:58 #44007

Bethune Hall
Bethune Hall is an old building on Main near Hertel. I did a couple years of art school there, back in 89-91 when it was part of UB.

It's for sale, so I called the number. 1.5 mill. It would probably cost that much to fix it, as it's pretty messed up. Still, it would be an awesome set of art studios.

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empireoflight - 04/14/08 18:18
Oh yeah? Who was it? I was in foundations mostly those years, got into printmaking and illustration in 90/91, I had Adele for MFA in 95/96
ajay - 04/14/08 16:22
Hey, I had a friend who was an art student around that time in Bethune Hall. She was Adelle's student (print making, intaglio). The stories she told me about that place...

03/28/2008 17:39 #43817

Rome sketches
Coming back tomorrow, thought I'd post these. Rome is pretty amazing!
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Missing Image ;(


jenks - 03/29/08 16:25
nice. I wish I could draw. AT ALL.

Just saw a cool video- an autistic guy that drew a SPOT-ON huge aerial map of rome- after one 30 min helicopter ride. It was amazing. Youtube it!
paul - 03/29/08 11:52
Oh, I want to go back to Rome. Italy is so great. Nice sketches.
megan - 03/29/08 11:26
beautiful sketches
dcoffee - 03/29/08 00:27
cool stuff, wow. My drawing skills are pretty rusty.

03/08/2008 17:21 #43585

Why google sucks
It seems that google is just a spam farm. If you click the first result in google, 99% of the time, it's spam. Maybe this is the way a new search engine will overtake google-by providing relevant results. Digg does this to some extent; if I'm looking for a site with decent css templates, google=spam but digg=relevance, with humans backing it up.
ajay - 03/09/08 12:28
You had me at "Google sucks"....
empireoflight - 03/09/08 09:35
That sounds like a good idea. Another idea-vote for results, like on digg
Paul, get to work coding a new search engine!
carolinian - 03/08/08 22:44
I always wondered what would happen if you took a browser and wrote some module to have it pass the each result through a bayesian filter (like the kind that email client spam filters use) before showing you the result. You could train the thing, where you can say a search result is spammy, and the next time a similar result is retrieved, it would automatically be thrown out.