Re: Display on a 12bit monochrome monitor

Posted by Gabriel Lapointe-2 on Jan 22, 2010; 12:25pm
URL: http://imagej.273.s1.nabble.com/Display-on-a-12bit-monochrome-monitor-tp3689586p3689587.html

Hi Marcel,
The average human eyes are barely able to see the difference between
images with 128 and 256 levels of gray. Therefore I seriously doubt
there is a gain in going to a 12 bit grayscale monitor anyway.

Slide 14 of the following presentation contains images with various
level of gray (up to 256 after I just reused the 8 bit one). It's in
French but it's the numbers that are important in understanding the
slide.
http://gabriellapointe.ca/imagej/presentations/grsnc2009.php 

Gabriel Lapointe, M.Sc.
Laboratoire de Luc DesGroseillers, Ph.D.
Pavillon Roger-Gaudry Local A-538
Département de biochimie
Faculté de Médecine de l'Université de Montréal
2900 boul. Édouard-Montpetit,
Montréal, Qc, H3T 1J4
[hidden email]
http://gabriellapointe.ca 


On Fri, 2010-01-22 at 00:56 -0800, Marcel H. wrote:

> Hi list members,
>
> I have a 12bit monochrome Dicom image.
> If I had a radiologic monitor and a professional graphics board that both
> support support 12 bit grayscale, would it be possible to display more than
> 8 bit with ImageJ?
> Or will the image be sampled down to 8 bit also on a 12 bit screen?
>
> If it is not possible with ImageJ, is there another way with Java to display
> more that 2^8 gray scales with that professional radiology hardware?
>
> Or is that only possible with radiology workstations?
>
> A lot of questions, thanks for your help!
>
> Marcel H.