User`s guide

R2015a
1-4
Fast geodesic interactive segmentation
The toolbox includes a new function, imseggeodesic, that provides adaptive, geodesic
distance-based binary or trinary segmentation for color images. With this function, you
can specify a few pixels, called scribbles, belonging to the different regions (for example,
background and foreground in binary segmentation) in the image, and from them the
whole image is automatically segmented.
Optimized function for Gaussian filtering
The toolbox includes two new functions, imgaussfilt and imgaussfilt3, that provide
an easy-to-use interface for Gaussian filtering for both 2-D and 3-D data. With these
functions, you can switch between filtering in the spatial or frequency domains. In
addition, these functions support anisotropic Gaussian filters, enabling you to apply
Gaussian smoothing with different standard deviations along each data dimension. Use
these functions instead of using fspecial and imfilter to create a Gaussian kernel
and then applying it.
Fill entire region including border pixels
The toolbox includes a new function, regionfill, that provides a way to fill a specified
region in an image using inward interpolation so that the region blends in with the
surrounding background. regionfill replaces the roifill function. regionfill fill
in regions in an image including the border pixels. roifill left the pixels on the border
of the region unprocessed.
Visualize results of boundary tracing
The toolbox includes a new function, visboundaries, that provides a way to plot region
boundaries on set of axes. You can use this function to visualize the results returned by
the bwboundaries function.
Examine contents of DICOM files
The toolbox includes a new function, dicomdisp, that displays the metadata of a DICOM
file at the command prompt. dicomdisp can be useful when debugging issues with
DICOM files.