Posted by
ctrueden on
Oct 12, 2009; 3:32pm
URL: http://imagej.273.s1.nabble.com/Image-looks-so-whitish-and-Bad-on-display-tp3690738p3690739.html
Hi Prashant,
You need to study the pixel values of the original DICOM to figure out
what's going on, rather than just looking at the rendered image. The PNG of
the rendered image is not sufficient to deduce the problem because it has
mangled the pixel values.
The DICOM readers for both ImageJ and Bio-Formats are seeing three data
ranges: 1) between ~0-2000; 2) ~7100-7400; and 3) ~8000-8200. To my naive
eye, it looks like an overlay between data collected in three different
ways, or at three different bands somehow.
Even in your original.PNG image, traces of these borders are visible in the
U band along the bottom, and the central bright white portion is washed out
from the actual data—if you adjust the Brightness/Contrast of the DICOM file
in ImageJ, you will see there is more information there than the PNG would
indicate.
-Curtis
P.S. Are you aware that every message you send has an obnoxious 33K GIF
attachment?
On Mon, Oct 12, 2009 at 5:30 AM, prashant <
[hidden email]> wrote: