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* [ANN] Guile-PNG 0.7.3 released
@ 2024-03-30  8:08 Artyom V. Poptsov
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From: Artyom V. Poptsov @ 2024-03-30  8:08 UTC (permalink / raw)
  To: Guile Users' Mailing List

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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:

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


Artyom "avp" Poptsov <>
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CADR Hackerspace co-founder:
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