contrast and brightness

2002-08-13 Thread Brian C. Schweinsburg
Hi Folks, When I convert and load images (from gelx, analyze, or brik format), the contrast and brightness are way off. In some cases the entire brain looks bright white. This creates a problem for segmentation edits because when I adjust the contrast for the auxiliary image (mri/orig

Re: contrast and brightness

2002-08-13 Thread Evelina Busa
Hi Brian The tkmedit View-- Configure Brightness Contrast option allows you to configure the main and/or aux volume(s) to your liking. I suppose you could set an environment variable once you determine to which degree you want the aux volume brightness reduced -- assuming this would

Re: contrast and brightness

2002-08-13 Thread Brian C. Schweinsburg
Thanks. I overlooked the aux adustment for some reason. The environment variable would be nice because my contrasts are off for every participant, to varying extents. I suspect that the display contrast and brightness do not impact the segmentation, etc. Although, I would like to confirm

Re: contrast and brightness

2002-08-13 Thread Evelina Busa
Hi Brian, You're right, the display contrast and brightness don't actually impact the segmentation; it's just for visualization purposes. Cheers! Ev On Tue, 13 Aug 2002, Brian C. Schweinsburg wrote: Thanks. I overlooked the aux adustment for some reason. The environment variable would

Re: contrast and brightness

2002-08-13 Thread Kevin Teich
and constrast. Put this line in a text file: SetVolumeColorScale 1 brightness contrast where brightness is between 0 and 1 and contrast is between 0 and 30. Name this file something like 'startup.tcl' and run tkmedit with the -tcl option: tkmedit subject volume -tcl startup.tcl -- Kevin Teich