Android make-up smudge detection app (computer vision)

I need an app that can show me if I have smudged my make-up. I need a dev to produce a mobile android app. This app will analyze a photo of a face, and draw annotations where the make-up is uneven Three examples are attached. workflow: Open a picture Analyze using CV Apply annotations Display image with annotations I explicitly want to annotate 2 things. any dots or high contract areas any sudden changes in color. Other ideas: I am assuming you will use a CV library, to orient the face. ([login to view URL]) Obviously lines around eyes, eyebrows, nose, and lips should be ignored. I imagine a canny filter or a combination of various filters will provide satisfactory results. I am open to suggestions Has anyone done anything similar or does anyone know how to implement this? Thanks for bidding.