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GNU Guile-CV 0.1.6 released
From: |
David Pirotte |
Subject: |
GNU Guile-CV 0.1.6 released |
Date: |
Sun, 13 Aug 2017 20:38:35 -0300 |
Hello,
GNU Guile-CV 0.1.6 is released.
* About
Guile-CV - Image Processing and Analysis in Guile - is a Computer Vision
functional programming library for the Guile Scheme language.
Based on Vigra (Vision with Generic Algorithms - a C++ image processing
and analysis library), Guile-CV comprises a direct binding to Vigra C (a
C wrapper to most of the Vigra functionality), enriched with pure Guile
scheme algorithms, 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.
http://www.gnu.org/software/guile-cv/
* Download
Here are the compressed sources and a GPG detached signature [*]:
http://ftp.gnu.org/gnu/guile-cv/guile-cv-0.1.6.tar.gz
http://ftp.gnu.org/gnu/guile-cv/guile-cv-0.1.6.tar.gz.sig
This released was bootstrapped with the following tools:
-] gcc (Debian 6.4.0-1) 6.4.0 20170704
-] autoconf (GNU Autoconf) 2.69
-] automake (GNU automake) 1.15.1
-] libtool (GNU libtool) 2.4.6
-] makeinfo (GNU texinfo) 6.4.90
-] pdflatex 3.14159265-2.6-1.40.18 (TeX Live 2017/Debian)
-] guile-2.2 2.2.2.3-0c102
-] guile-lib-1.0 0.2.5.1
-] vigra from the source, last commit here:
b2ff44f - June 18, 2017
-] vigra C from the source, last commit here:
0885303 - Feb 3, 2017
* Changes since 0.1.5
** Interface changes
im-normalize
im-normalize-channel:
Adding an optional #:key (val 255.0), since we need to be able to
normalize to specific values in some circumstances, such as, for
example, to normalize gray level co-occurrence matrices.
f32vector-reduce:
The arguments order has been changed for 'vector proc default' not
'proc default vector', because it is the order we use in im-reduce and
im-reduce-channel - as [almost] all other im-* procedures or methods
take an image as their first argument. As a user, it is also a bit
more naturel, imo at least, to 'reduce image using proc, return
default if the image is empty'.
im-add
im-add-channel
im-subtract
im-subtract-channel
im-multiply
im-multiply-channel
im-divide
im-divide-channel:
All linear algebra matrix methods now accept any number of images or
channels. Note that due to the inherent checks between lines and
columns of intermediate results, im-multiply-channel and
im-divide-channel methods arguments must be a series of at least one
tuple(s) composed of three values - channel width height - represented
in the manual as: c1 w1 h1 c2 w2 h2 c3 w3 h3 …
im-collect:
Updated so its interface is 'identical' to im-map and friends, and a
typical call now looks like: im-collect what i1 i2 i3 … (instead of
im-collect images what).
** New interfaces
im-range
im-range-channel
im-min
im-min-channel
im-max
im-max-channel
im-map
im-map-channel
im-reduce
im-reduce-channel
f32vector->s32vector
f32vector-range
s32vector-range
s32vector-min
s32vector-max
s32vector-reduce
s32vector->f32vector
** Bug fixes
im-normalize:
the width and height of the result normalized image were inadvertently
inverted, now fixed.
f32vector-matrix-multiply:
the sub results were inadvertently using 'n' instead of 'p' to compute
their destination position in the 'n x p' cells returned result
f32vector, now fixed.
* Bug reports
Please report bugs to address@hidden
* Mailing lists
For the time being, Guile-CV uses Guile's mailing list:
address@hidden is for general user help and discussion;
address@hidden is used to discuss most aspects of Guile-CV,
including development and enhancement requests.
David
[*] 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-0.1.6.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
pgpDwlsg_bp7o.pgp
Description: OpenPGP digital signature
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