User`s guide

R2007b
16-4
Each of the ROI creation functions supports an API that you can use to control aspects
of its behavior and appearance. For example, you can use API functions to specify the
position of the ROI or retrieve the coordinates of its current position.
Support for Reading NITF and HDR Images
• Read metadata from a National Imagery Transmission Format (NITF) file using
nitfinfo.
• Read an image from a NITF file using nitfread.
• Read high dynamic range (HDR) images using hdrread.
• Convert high dynamic range images into a format that can be displayed using the
tonemap function.
Enhanced Performance
• Enhanced performance for thinning and skeletonization using bwmorph.
• Enhanced performance for filtering RGB images using imfilter.
DICOM Dictionary Upgrade
The default DICOM dictionary has been upgraded to the 2007 version released by
NEMA. A text version of this dictionary is included in the product, dicom-dict.txt.
This upgrade fixes a problem with the earlier version of the dictionary which contained
two instances of the same tag, which caused warnings.
Compatibility Considerations
If your DICOM code depends on hard-coded old attribute names, you may see failures.
In addition, some DICOM files may no longer parse. Customers who require attribute
settings from the 2005 version can use the dicomdict function to access the old data
dictionary, which we are shipping in R2007b. That is, dicom-dict.txt will have 2007
values and dicom-dict-2005.txt is the version of dicom-dict.txt found in R2006a
and R2007a.
Changes to Other Functions
This release includes changes to the following functions.