Dropper- A real-world Photoshop eyedropper tool

Dropper is an iOS app that helps artists match real-world colors with oil paint mixing ratios.

Using your device's camera or photos from your library, you can select any color and get the corresponding oil paint mixture needed to recreate it.

• SwiftUI frontend
• C++ color conversion engine
• Objective-C++ bridge layer for Swift-C++ interop

Building the Project

1. Open Dropper.xcodeproj in Xcode
2. Ensure the bridging header is properly configured
3. Build and run on your iOS device or simulator

Requirements

• iOS 15.0+
• Xcode 14.0+
• Swift 5.0+
• C++17 or later

Acknowledgements

Special thanks to Mixbox for providing the basis for the color mixing algorithms used in this project.

And to Zsolt M. Kovacs-Vajna for his decade of research in color mixing algorithms.