Algorithm improvement for Coca-Cola can shape recognition

One of the most interesting projects I've worked in the past couple years as I was still a student, was a final project about image processing. The goal was to develop a system to be able to recognize Coca-Cola cans (note that I'm stressing the word cans, you'll see why in a minute). You can see a sample below, with the can recognized in the green rectangle with scale and rotation.

OpenCV with Android

I'm just after setting up OpenCV for android in Eclipse following this tutorial , I have the samples which do not use native c running fine on my phone.

Some Image Editing examples needed [closed]

I am looking for some code which manipulates images of arbitrary facial images. It should recognize the locations of the left and right eye, mouth, and cheeks to apply the effects properly. If possible editing the image such that it looks like "damage" is done to the face each time the application is run on the image.

error in necessitas while use openCV libs

I'm programming in QT for android device and need to use openCV for capture from camera. I already used Qt creator and linked openCV and used camera, but in Qt for android (necessitas) when build program, show this errors: