INTERACT FORUM

More => Old Versions => Media Center 12 (Development Ended) => Topic started by: Doof on July 19, 2006, 12:04:43 pm

Title: Bad pixel filtering
Post by: Doof on July 19, 2006, 12:04:43 pm

Anybody have an image they can put up a link to that has bad pixels that MC can apparently filter out now? I'm just curious how this works.

Title: Re: Bad pixel filtering
Post by: Matt on July 19, 2006, 01:21:59 pm

It's a pretty slick thing.  My D-Rebel has a red dot that shows up with any long exposures.  I'm too lazy to photoshop, reencode, etc. but now there's just no need.  For viewing and printing the stuck pixels are totally gone.

Currently it takes a little leg work to build the bad pixel map.  Shoot a long exposure with a lens cap on, and then find the coordinates of any dots.

I'm not aware of any other software that can do this nicely at view / print time like MC 12.

I'll see if I can put a sample together one of these days.

Title: Re: Bad pixel filtering
Post by: Doof on July 19, 2006, 04:04:06 pm

Is this something that MC12 could eliminate from the image entirely? Or just when we're viewing it through MC?

Title: Re: Bad pixel filtering
Post by: GHammer on July 20, 2006, 03:16:08 am

Works well. I used a tool in the past to remove the aberrations from long exposure. Here is a nice explanation of where hot/bad pixels come from and why.

Hot Pixels (http://www.mediachance.com/digicam/hotpixels.htm)