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Re: Display on a 12bit monochrome monitor

Posted by Gluender-3 on Jan 22, 2010; 2:25pm
URL: http://imagej.273.s1.nabble.com/Display-on-a-12bit-monochrome-monitor-tp3689586p3689592.html

Marcel,

monitors specified as 10 bit will display true 8 bit and this makes
the difference a trained radiologist may be able to recognize. 12 bit
means more than 4000 shades of gray (i.e. 244 ppm) and poses enormous
technical problems to realize (near to impossible today with LCDs),
not to speak of the human eye.

In general even radiologists work with a grayscale expansion or
"loup" and CT-radiologists did so from the very beginning of this
technique.

>Gabriel Lapointe-2 wrote:
>>
>>  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.
>>
>
>
>Hi Gabriel,
>
>I am doing investigations for the development of a radiologic tool. In
>radiology it is quite common to use 10 or 12 bit monitors (Eizo, Barco,
>etc.) and the radiologists swear that they can see the difference ;-)
>
>My intention is to find out if I can use the common java graphic and imaging
>components for such a 10-12 bit radiology tool.

AFAIK ImageJ doesn't use SUN-Java image processing routines but deals
various image formats, 16 bit and 32 bit float included. That said,
you may consider ImageJ 16 bit routines for your purposes.

Best
--

                   Herbie

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