From: "Artyom V. Poptsov" <poptsov.artyom@gmail.com>
To: Guile Users' Mailing List <guile-user@gnu.org>
Subject: [ANN] Guile-PNG 0.7.3 released
Date: Sat, 30 Mar 2024 11:08:07 +0300 [thread overview]
Message-ID: <87ttkob0rc.fsf@gmail.com> (raw)
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Hello Guilers,
I'm pleased to announce Guile-PNG 0.7.3, Portable Network Graphics
(PNG)[1] library for GNU Guile, implemented in pure scheme:
https://github.com/artyom-poptsov/guile-png/releases/tag/v0.7.3
This release adds procedures that allow to rotate images 90 degrees
clockwise/counter-clockwise, flip images vertically and horizontally and
introduces new high-level API for manipulating image pixels.
* List of user-visible changes
--8<---------------cut here---------------start------------->8---
* Changes in version 0.7.3 (2024-03-30)
** Implement image transformation methods
The methods below can be found in =(png image-processing rotate)= module:
- =png-image-rotate-90/cw=: 90 degrees clockwise rotation
- =png-image-rotate-90/ccw=: 90 degrees counter-clockwise rotation
- =png-image-flip-vertical=: Vertical flip.
- =png-image-flip-horizontal=: Horizontal flip.
** New high-level API for manipulating image pixels
=(png graphics pixel)= now provides two high-level procedures for manipulating
the image pixels:
- =png-image-pixel-for-each=
- =png-image-pixel-map=
- =png-image-pixel-fold=
** Update and improve the documentation
** Add new tests
--8<---------------cut here---------------end--------------->8---
Happy hacking!
- avp
References:
1. https://www.rfc-editor.org/rfc/rfc2083
--
Artyom "avp" Poptsov <poptsov.artyom@gmail.com>
Home page: https://memory-heap.org/~avp/
CADR Hackerspace co-founder: https://cadrspace.ru/
GPG: D0C2 EAC1 3310 822D 98DE B57C E9C5 A2D9 0898 A02F
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