This app uses the camera to record movement (thus "delta") and visualize it in one picture. For example running ants leave dark lines on a light surface, or driving cars or a torch make light lines on a dark surface. Make sure not to move the camera during recording or use a tripod. You can share images, adjust sensitivity and switch between light-on-dark and dark-on-light mode.
Ants (dark on light):
A small fountain (light on dark):
Based on Android's Camera2 API sample, using RenderScript. Actually this is a how-to-use-renderscript demo.
Copyright 2018 Uwe Post
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
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