How to capture photo automatically in android phone? is about how to take a picture automatically without people's interaction. This feature is needed in many applications. For example, when you are going to take a picture of a document, you expect that the camera can take it automatically when the full document is insider the picture (or four corners of the document). So my question is how about doing it in iPhone or iPad?
Recently, I am working on Cordova, and does someone know that there are some plugins that have already existed for this kind of camera operations? Thanks
EDIT:
This operation will be done in an APP that will be given the full access of the camera, and the task is how to develop such an APP.