Worked on enhancing the OpenCV imgcodecs module within the opencv/opencv repository to improve compatibility with Apple platforms. Addressed build failures by implementing conditional compilation and introducing AVFoundation support, while providing fallbacks for macOS versions lacking ImageIO. Utilized C++ and Objective-C to adjust API usage, such as replacing CGSize with NSMakeSize and bridging for older Objective-C++ compilers, ensuring robust cross-version support. Focused on resolving a specific bug that affected image conversion features when AVFoundation was unavailable, thereby broadening macOS support. Demonstrated depth in image processing, platform-specific API handling, and preprocessor-driven development to align with ongoing Apple platform goals.