Vips for Pixel

A libvips implementation of the Mako pixel image processing library.

The package provides a high-performance libvips backend for common image transformation and processing tasks, while integrating with Pixel's shared API for images, colors, geometry, operations, and inspectors.

Requirements

• FFI enabled
• libvips installed on the system

This package is built on top of jcupitt/vips, which uses FFI to communicate with libvips.

libvips is not bundled with this package and must be installed separately.

Note that the libvips package name varies between operating systems and distributions. The following are examples and may differ depending on your system and the version of libvips available.

Debian / Ubuntu

sudo apt-get install --no-install-recommends libvips42

macOS

brew install vips

See the libvips installation documentation for further instructions.

Installation

composer require mako/pixel-vips

Usage

The Vips implementation works just like the GD and ImageMagick implementations and shares the exact same API.

use mako\pixel\image\Color;
use mako\pixel\image\operations\Pipeline;
use mako\pixel\image\operations\vips\Border;
use mako\pixel\image\operations\vips\Sharpen;
use mako\pixel\image\Vips;

$image = new Vips('image.png');

$image->apply(new Pipeline(
	new Sharpen,
	new Border(new Color(0, 0, 0, 127), width: 10),
));

$image->save();

Access mode

Images are loaded using random access by default, which supports all operations and inspectors. If you're only doing single-pass processing (load, transform, save) then you can switch to sequential access for better performance and lower memory usage.

Vips::setAccessMode(AccessMode::Sequential);

Note that operations and inspectors that read pixels out of order (e.g. pixel inspection or rotation by arbitrary angles) will fail when using sequential access.