WhatsApp filters for photos and media are coming to Android. The function was already available for iOS.
To use filters, capture or select a photo in WhatsApp. Then swipe up, as indicated above the caption field in the screenshot.
After this you can choose from the effects Pop, Black-White, Cool, Chrome and Film.
Beta 2.17.297 for Android added this option for testing, but it’s removed again in 2.17.298. Soon it will be available for all Android users.