imageproc is a Rust library providing a comprehensive suite of image processing operations built on top of the `image` crate. It includes a wide range of filters (Gaussian blur, bilateral, median, sharpen), geometric transformations (rotation, scaling, warping, projection), drawing primitives (lines, shapes, text with font rendering), feature detection (FAST corners, BRIEF descriptors, Hough lines, HoG, Haar-like features), contrast manipulation (histogram equalization, Otsu thresholding), morphology (dilation, erosion, structuring elements), distance transforms, template matching, seam carving, image hashing, and noise addition. The library is designed for performance with extensive use of `unsafe` code where justified, and provides both mutable and immutable API variants, as well as parallel execution via the `rayon` feature. It serves as a practical tool for computer vision and graphics editors, with a focus on correctness and reproducibility (regression tests against reference images). The crate is modular, with each major operation in its own file, and includes many examples demonstrating realistic workflows like edge detection, object matching, and text overlay. While not a research project, it implements classic computer vision algorithms with modern Rust idioms and is actively maintained with regular releases.
Modernizr is a JavaScript library that detects browser support for HTML5, CSS3, and other web features. In production, it runs on page load, executing a suite of tests and setting CSS classes on the <html> element to indicate feature support or lack thereof. It also provides a CLI tool (bin/modernizr) and a Node.js API (lib/build.js) for generating custom builds containing only the desired feature tests. The architecture is modular, using the AMD (RequireJS) pattern. The core library (src/) provides the test runner, prefix resolution, and class setting logic. Feature tests are organized in the feature-detects/ directory, each following a standardized metadata and test pattern. The build pipeline (Gulp) compiles selected modules into a single minified JavaScript file. The codebase demonstrates high craftsmanship in several isolated components. src/prefixed.js provides a robust vendor prefix resolution algorithm. src/testAllProps.js offers a generic CSS property/value testing utility. src/injectElementWithStyles.js is a clever pattern for dynamic visual testing. These components are self-contained and could be extracted for use in other projects requiring cross-browser compatibility logic. Despite its strong core, the project suffers from significant technical drift. The build system relies on Gulp and AMD, which are legacy technologies. Dependency versions in package.json (e.g., lodash: ^4.18.1, jquery: ^4.0.0) appear to be typos or refer to non-standard forks, posing a significant dependency resolution risk. The project has been in a 4.0.0-alpha state for an extended period. While actively maintained (recent commits, active CI), the accumulation of legacy feature detects and outdated infrastructure makes it a high-drift codebase.