Effects Pro is a practical and easy-to-use Android application to apply several filters to an image at once. It is free and open source and you could find source code on https://github.com/yaa110/Effects-Pro

Features:
Applying several filters
Undoing filters one by one
Maintaining maximum image quality
Taking photos using camera or choosing from SD-Card

Filters:
Boost-Up Colors, Brightness, Color Depth, Color Filter, Contrast, Emboss, Flip and Rotation, Gamma, Gaussian Blur, Grayscale, Hue, Invert, Noise, Saturation, Sepia, Sharpen, Sketch, Tint, Vignette

Screenshots: