$ show php-imagine/Imagine
Imagine is a PHP library for image manipulation providing a unified API over GD, Imagick, and Gmagick extensions. It offers a rich set of features including resizing, cropping, rotating, effects, drawing, filters, color management, metadata reading, and layered image support. The library is well-architected with clean interfaces, abstract base classes, and a factory pattern that allows swapping drivers. It includes extensive test coverage with reusable test infrastructure. While primarily a library, it is a mature, actively maintained solution for PHP image processing.
The LLM identified 6 files worth highlighting for reuse:
A standalone 2D numeric matrix class used for convolution kernels in image filters. It supports element access, multiplication, normalization, and offset operations. Can be reused in any PHP project requiring matrix math.
A utility class with static methods to wrap callbacks with error suppression (ignoring) or conversion to runtime exceptions. Useful for safely calling PHP functions that emit warnings, and can be extracted as a standalone helper.
An abstract base class for metadata readers that implements the template method pattern. Subclasses override extractFromFile, extractFromData, and extractFromStream. Provides a clean, reusable pattern for reading metadata from various sources.
A factory class that creates driver-specific objects (Box, Font, Image, Drawer, Effects, etc.) based on a handle string. Supports class factory awareness via interface. Demonstrates a clean, decoupled object creation pattern.
A composable filter pipeline that applies a sequence of FilterInterface filters in priority order. Implements ImageInterface via delegation, allowing chaining of operations like resize, crop, rotate. Reusable pattern for building image processing workflows.
A PHPUnit custom constraint that compares two images for equality by checking dimensions and pixel-by-pixel color values. Reusable across projects that need to assert image output in tests.