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]]
>>Sent: Montag, 25. März 2013 10:47
>>To: [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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