Did you know
Monday, October 2, 2006 by _02 | Discussion: Internet
I was watching a show today called Proof Positive on the Discovery Times channel. It was about being able to see all the information there is to see in black and white xrays. Apparently the human eye is only capable of discerning 32 shades of gray in a scale of white to black according to Patrick Love who designed some computer software that can "see" up to 256 shades of gray.
Once we have reached the 32 shades of gray, the picture or whatever we are looking at does not improve or show more detail when adding more shades of gray due to the limits of our eyes. The software Love created picks up where our eyes leave off and we are now able to see far more information from xrays. This is especially useful in identifying bomb victims. Just thought you would like to know, if you don't already!
Now, does anyone know if this relates to our ability to see 256 colors? If we are not, then they sure are going through alot of expensive trouble to improve things like games and stuff if we aren't able to see an improvement or more detail after a certain point.
_02
Reply #2 Monday, October 2, 2006 10:54 AM
Reply #2 Monday, October 2, 2006 10:54 AM
Thanks Fuzzy. I take it that 256 colors is beyond our range as well. Anyway, the show was very interesting. I'm sure it is older news to some, but I hadn't seen or heard it before now and found it fasinating. Pencil writing and our finger prints look like valleys and mountains. It's incredible, but the advances in reading and identifying bones that were bombed is the most incredible. It will help people to know if they should keep hope alive or grieve their lost loved one and move on. Amazing stuff!
Fairyy~
Reply #3 Monday, October 2, 2006 11:28 AM
Reply #3 Monday, October 2, 2006 11:28 AM
Thanks cindi - interesting ..
As for the games - when they started getting too colourful thats when I was unable to play them ...maybe as we age color becomes more obscure. I see better in grays.
As for the games - when they started getting too colourful thats when I was unable to play them ...maybe as we age color becomes more obscure. I see better in grays.
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Reply #1 Monday, October 2, 2006 7:45 AM
Don't forget 'full' colour on a pc is three channel rgb, so you have 256x256x256, or 16.7 million. Turn that to B&W and you will have 256.
Very interesting stuff about the x-rays though. Anything which helps analysis is a breakthrough.