Hello,

GNU Guile-CV 0.4.0 is released.

This is a maintenance release, which introduces new interfaces.

	[ for those who wouldn't know, the message is marked-up using
	[ org-mode - https://orgmode.org/ - and best viewed in emacs, or any
	[ org-mode aware editor, or (skip reading here and) visit

	[	https://www.gnu.org/software/guile-cv/

* About

[[http://www.gnu.org/software/guile-cv/][GNU Guile-CV]]
Image Processing and Analysis in [[http://www.gnu.org/software/guile/][Guile]]
a Computer Vision functional programming library

Guile-CV is based on [[http://ukoethe.github.io/vigra/][Vigra]] (Vision with Generic Algorithms), enhanced
with additional algorithms (Image Textures, Delineate, Reconstruction
and many more), all accessible through a nice, clean and easy to use
high level API.

Guile-CV is natively multi-threaded, and takes advantage of multiple
cores, using high-level and fine grained application-level parallelism
constructs available in Guile, based on its support to POSIX threads.

* Download

Here are the compressed sources and a GPG detached signature [fn:1]:

	http://ftp.gnu.org/gnu/guile-cv/guile-cv-0.4.0.tar.gz
	http://ftp.gnu.org/gnu/guile-cv/guile-cv-0.4.0.tar.gz.sig

This released was bootstrapped with the following tools:

	-] gcc              Debian 12.2.0-14) 12.2.0
	-] autoconf         (GNU Autoconf) 2.71 
	-] automake         (GNU automake) 1.16.5 
	-] libtool          (GNU libtool) 2.4.7
	-] makeinfo         (GNU texinfo) 6.8 
	-] pdflatex         3.141592653-2.6-1.40.22 (TeX Live 2022/dev/Debian)
	-] vigra	    1.11.1
	-] vigra_c	    commit 49f5319 [Jan 2023]
	-] guile-3.0        3.0.9.4-d8c34-dirty
	-] guile-lib-1.0    0.2.7

* Changes since 0.3.1

Here is a summary of visible changes since version 0.2.1. See GNU
Guile-CV's [[http://git.savannah.gnu.org/cgit/guile-cv.git][git summary]] and [[http://git.savannah.gnu.org/cgit/guile-cv.git/log/][git log]] for a complete description.

** Dependencies

Vigra >= 1.11.1
Vigra C >= commit 3351722 - Jan 18, 2022

** New interfaces

im-fft
im-fft-channel
im-fft-inverse
im-fft-inverse-channel
im-fcc
im-fcc-channel
im-fncc
im-fncc-channel

* Bug reports

Please report bugs to bug-guile-cv@gnu.org

* Mailing lists

For the time being, Guile-CV uses Guile's mailing list:

  guile-user@gnu.org is for general user help and discussion;

  guile-devel@gnu.org is used to discuss most aspects of Guile-CV,
  including development and enhancement requests.


David


[fn:1]

  Use a .sig file to verify that the corresponding file (without the
  .sig suffix) is intact.  First, be sure to download both the .sig file
  and the corresponding tarball.  Then, run a command like this:

	gpg --verify guile-cv-0.4.0.tar.gz.sig

  If that command fails because you don't have the required public key,
  then run this command to import it:

	gpg --keyserver keys.gnupg.net --recv-keys A3057AD7

  and rerun the 'gpg --verify' command