An Android app that reveals the mathematics behind image filters. Every effect is just a matrix.
Supports JPEG, PNG, GIF, BMP, WebP, TIFF, HEIF, and SVG. Load from gallery or file browser.
Every filter displays its underlying 4×5 color matrix or NxN convolution kernel in real-time.
Edit matrix values directly. Create custom convolution kernels of any size. Experiment freely.
Stack multiple filters with adjustable opacity. Reorder, toggle, and compose effects.
Multiply matrices together mathematically. See how combining filters creates new effects.
Save filters as JSON. Import filters from others. Build a library of custom effects.
Available for Android 7.0 (API 24) and above. Free and open source.
Download v1.0.0