Great.
Thanks
M
On 25 Mar 2013, at 12:57, "Kilgus, Thomas"
<[email protected]<mailto:[email protected]>>
wrote:
Hi Matt,
Bug #12811 unfortunately does not contain any data. Neither does the linked
#10823. All .tif images I have work correctly on the current master. If there
is other data which is not working it is definitely a bug. For instance,
loading "ramp.tif" from CMakeExternals/Source/MITK-Data/RenderingTestData/
works fine for me.
Regarding the Window/Level of RGB images I am also not sure how this is
"usually" done. We perform it on each of the 3 RGB channels (with the same
borders). We have another border value pair for the alpha channel to treat that
channel separately. The property is called opaque level window (or very
similar).
I hope this helps.
Regards,
Thomas
-----Original Message-----
From: Clarkson, Matt [mailto:[email protected]<http://ucl.ac.uk>]
Sent: Montag, 25. März 2013 10:47
To: [email protected]<mailto:[email protected]>
Subject: [mitk-users] Tiff image handling
Hi there Everyone,
I have someone who is loading tif images into our MITK based app, and is
asking questions.
Please can someone describe the correct handling for .tiff images, and RGB
images in general?
Bugs 1823 and 12811 suggest that tiff images are not supported, but .tif is
listed as a valid file extension.
But what should the initialisation of the min and max intensity be? How
should the Window/Level be set?
At the moment it looks like the Window/Level defaults to 255/127. which
seems reasonable.
But is this valid or relevant for an RGB image? I am more used to working with
single channel images.
But then when I play the Window/Level widget, the display changes .. but if
this is an RGB image, what colour map is being used to create the observed
visualisation contrast changes? How should you map an RGB image through a
lookup table? I thought RGB would just be copied to the screen, so that
changing the Window/Level would have no effect.
My lack of understanding is probably made a bit more pronounced than
usual, due to the fact that the images I am looking at have equal RGB
channels, and so appear greyscale anyway!!!!
:-)
Any help would of course be appreciated.
Thanks
M
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