ChangeLog

0.4-1 (Sep 29, 2024)
 * Deprecated declarations of Calloc and Free are not longer used in the package.
 * Function for the computation of a Nadaraya-Watson codispersion coefficient was
   added.
 * C code for computation of 'cor.spatial' is now slightly faster.
 * underlying C code for computation of the median was improved.

0.4 (Aug 18, 2022)
 * An issue in SSIM and CQ functions was fixed (reported by Julia Markowski).
 * Minor clean-ups in C and R codes.

0.3-8196 (Sep 22, 2020)
 * C code to obtain certain descriptive statistics is now provided by 'fastmatrix'
   R package.
 * Minor clean-ups in C and R codes.

0.3-819 (Jun 20, 2020)
 * Fixed an issue reported by professor Brian Ripley.
 * Two filters (Kuan and Nathan) were added to routine denoise.

0.3-81 (Jun 15, 2020)
 * Added routine to remove additive or multiplicative noise from a corrupted image.
 * Fixed error in function to compute the codispersion coefficient.
 * Code for imnoise was simplified.

0.3-8 (Jul 31, 2019)
 * Now underlying code for the computation of sample mean, variance and covariance 
   is based on an online algorithm.
 * Added routine to convert RGB image to grayscale using several methods.
 * Added routines to add noise to image (available methods: gaussian, salt & pepper,
   uniform and Gamma speckle).
 * Added routines to compute similarity between images.
 * Added some auxiliary routines.

0.3 (Mar 20, 2018)
 * Now routines modified.ttest and modified.Ftest return the estimated effective 
   sample size and the unscaled F-statistic.
 * Added routine to compute the modified F-test (Dutilleul et al. 2008, JSPI 138,
   1402-1415).
 * Authors field at DESCRIPTION file was corrected.

0.2-3 (Aug 08, 2014)
 * Internal code for computation of codispersion coefficient and modified t-test
   was corrected (contributed by Diego Mancilla).
 * Changes to NAMESPACE file to compliance with guidelines described in
   'Writing R Extensions' Section 1.5.

0.2 (Jun 15, 2012)
 * Initial release of the SpatialPack on CRAN.