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GNU Guile-CV 0.3.0 release
From: |
David Pirotte |
Subject: |
GNU Guile-CV 0.3.0 release |
Date: |
Mon, 8 Nov 2021 01:30:51 -0300 |
Hello,
GNU Guile-CV 0.3.0 is released.
This is a maintenance release, which allows Guile-CV to work with Guile
3.0 (>= 3.0.7 to be specific). In addition, im-transpose performance has
been improved.
The documentation has been restructured and follows the model we adopted
for [[http://www.gnu.org/software/g-golf][GNU G-Golf]]. The
/Configuring Guile's raised exception system/ section has been updated.
Make sure you carefully read and apply the proposed changes.
* 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]] (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-0.3.0.tar.gz
http://ftp.gnu.org/gnu/guile-cv/guile-cv-0.3.0.tar.gz.sig
This released was bootstrapped with the following tools:
-] gcc (Debian 11.2.0-10) 11.2.0
-] autoconf (GNU Autoconf) 2.71
-] automake (GNU automake) 1.16.5
-] libtool (GNU libtool) 2.4.6
-] makeinfo (GNU texinfo) 6.8
-] pdflatex 3.141592653-2.6-1.40.22 (TeX Live 2022/dev/Debian)
-] vigra 1.11.0
-] vigra_c commit e81e12a [Sep 2019]
-] guile-3.0 3.0.7.46-1f0e3
-] guile-lib-1.0 0.2.7
* Changes since 0.2.1
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
Guile-CV allows Guile 3.0 (>= 3.0.7 to be specific). The minimal 2.0
version is now 2.0.14
[[http://www.gnu.org/software/guile][Guile]] >=
2.0.14 [allows 2.2, 3.0 (>= 3.0.7)]
The makeinfo program dependency is now version 6.6.
Makeinfo >= 6.6
** Performance improvements
im-transpose
im-transpose-channel
The f32vector-transpose core functionality has been moved to
libguile-cv. Note that all memory allocation - except for some local
variables - still is being performed in scheme.
This makes im-tranpose work 22x faster. Because all memory allocation
still is done in scheme, and not in C, I am very comfortable with this
approach. When Guile has an AOT compiler that compiles fixed size
floating points and small integers operations and vector loops for
these that runs as fast as in C, and I am pretty confident that it will
happen, maybe not tomorrow, but it will happen, we will revert these
and use Guile Scheme again.
** Documentation
The documentation has been restructured and follows the model we adopted
for [[http://www.gnu.org/software/g-golf][GNU G-Golf]]. The
/Configuring Guile's raised exception system/ section has been updated.
Make sure you carefully read and apply the proposed changes.
* 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-0.3.0.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
pgpDXSS_e5RhH.pgp
Description: OpenPGP digital signature
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