Version Notes
=============

1.13   31 October 03
       Cleaned up documentation in src.  Made libraries and test programs
       ANSI C++ compliant.  Added special cases to rasterops for
       alignment to word boundaries.  Fixed pngio.c to work with
       most recent libpng (1.2.5).

1.12   30 June 03
       Implemented border chain representation from a binary image,
       writes/reads a compressed version, and renders the original
       image back from the borders.   Also writes outline file out
       in svg format.  Number arrays (numa) and point arrays (pta)
       are also extended to 2nd level arrays (numaa, ptaa).
       Serialized I/O for boxa, pta, and pixa.

1.11   31 May 03
       Implemented generic list handling, for doubly-linked
       list cons cells and arbitrary objects.

1.10   14 Apr 03
       Implemented simple image enhancements in gray and color:
       gamma correction, contrast enhancement, unsharp masking.
       Extended smoothing via block convolution to color.
       Implemented auto-gen'd DWA version of hit-miss transform;
       the code for generating these hmt routines is very similar to
       that for DWA auto-gen'd erosion and dilation.
       
1.9    28 Feb 03
       Implemented a safe, expandable byte queue.  As an example of
       its use, implemented memory-to-memory compression and decompression
       using zlib.  Generalized PS write to include RGB color.
       Implemented a method to find image skew.

1.8    31 Jan 03
       Implemented a simple 1-pass color quantization with dithering,
       and improved the 2-pass octree color quantization.
       Documented with an application page, that includes jbig2.
       Added new general sampling operations and made a table
       that summarizes the available scaling operations.

1.7    31 Dec 02
       Added pixHtmlViewer(), a formatter that allows portable viewing of
       a set of images (like a slide show) in a browser.
       Implemented better octree color quantization, with variable
       number of colors, pruning the octree for good color clusters,
       and fast traversal for pixel assignment to colormap.

1.6    30 Nov 02
       Generalized shear and shear rotation to arbitrary locations
       about which the operation is performed.  Implemented in-place
       translation using pixRasteropIP().  Implemented arbitrary
       affine transform of image two ways: pointwise and sequential.
       Added binarization by error diffusion.  Added simple color
       quantization by octree.

1.5    31 Oct 02
       Put jpeglib.h in local directory.  This, along with the jmorecfg.h
       file there prevents compiler warnings about redefined typedefs.
       Compiled everything with g++ to make strictly ansi C compatible.
       Added interface gplotFromFile() for simple file-based plotting with 
       gnuplot 3.7.2.   Added functions to convert 2, 4 and 8 bpp
       color-mapped (i.e., palletted) images to 24 bpp color or
       8 bpp grayscale.  Added several jbig2 application cores that
       only require a simple wrapper to make into programs.

1.4    30 Sep 02
       Added interface to gnuplot 3.7.2 and to x11 display of images. 
       Added new functions with arrays of images for use in applications
       such as jbig2 encoders, along with a simple jbig2 implementation
       using either hausdorff or correlation scoring.  Added centroid
       finder for images.  For accessing image arrays from arrays of
       image arrays, added a "new reference" (NEW_REF) flag, with a
       ref count attached to the array.  Added power-of-2 binary
       expansion and reduction.

1.3    30 Jun 02
       Extended connected components to 8.  Added morphological
       operations tophat and hdome, along with clipped arithmetic
       operators on grayscale images.  Fixed memory error in
       rasteropGeneralLow() that was found using valgrind.
       Tested most operations with valgrind for memory errors.
       Replaced integer arrays with number arrays, to include floats.
       Added arithmetic functions on grayscale images.

1.2    30 May 02
       Added connected component utility, stack utility, pix arrays,
       line drawing and seed filling.  Binary reconstruction,
       both morphological and raster-oriented, are now supported
       for 4 and 8 connected fills.  Added the distance function
       on binary images, grayscale reconstruction, and grayscale
       morphology using the Gil-Werman method.

1.1    30 Apr 02
       Added orthogonal rotations, binary scaling, PS output,
       binary reconstruction, integer arrays, structuring element
       input/output.

1.0    25 Feb 02
       Initial distribution, with rasterops, binary morphology (two
       implementations: rasterops and dwa), affine transforms
       (translation, shear, scaling, rotation), fast convolution,
       and basic i/o (BMP, PNG and JPEG).