[vtk-developers] 12-bit grayscale display

[David Gobbi]

On Wed, Feb 6, 2013 at 8:58 AM, David Gobbi <david.gobbi at gmail.com> wrote:
> On Wed, Feb 6, 2013 at 8:56 AM, David Gobbi <david.gobbi at gmail.com> wrote:
>> On Wed, Feb 6, 2013 at 7:27 AM, Uma A <uma at lucidindia.com> wrote:
>>> Hello, We are planning to use Totoku M53i2 monochrome monitor to visualize
>>> industrial digital radiographic image. 12-bit display is in wishlist of
>>> VTKImage rendering classes It is mentioned in the wishlist that "Likelihood:
>>> high if someone is willing to test"- Could you please share the examples or
>>> through an idea on how to test & achieve 12bit grayscale display? We can
>>> possibly check and test the various cases.
>>
>> Page 8 of the following NVidia whitepaper describe the method that would be
>> used (except that the lookup table would not be stored in a texture, it would
>> be stored in a vtkLookupTable with 4096 entries.).  This method requires that
>> your monitor internally converts the RGB DVI signal to a greyscale signal, like
>> the monitors described in the NVidia whitepaper.
>
> Here is the whitepaper that I forgot to link to in my last email:
> http://www.nvidia.ca/docs/IO/40049/Grayscale10bit_v03.pdf

Follow-up: The following page on the Totoku website indicates that they use
the same method as described in the NVidia whitepaper:
http://www.totoku.com/display/products/feature/01.shtml
You can easily use this method with VTK if you can get their
"customized conversion table", because you would just have to create a
vtkLookupTable that has the same values.

 - David