Android: Real Time Image Processing

Question

I have an application which takes a camera preview, performs some basic image processing function on every frame (e.g. edge detection, colour change, image warp etc.) and displa

Answer 1

I have also done something like this. What I do is extend the Camera View. I don't think the camera view is updated every frame, but retrieved. And only the View that you have changed would have to be updated. OpenCv do does a better job than native camera. After importing org.opencv.highgui.VideoCapture , you can directly access the camera using:

VideoCapture camera;
camera.retrieve(mGrayMat, Highgui.CV_CAP_ANDROID_GREY_FRAME);

to convert mGrayMat to mRgbaMat: （ org.opencv.imgproc.Imgproc）

Imgproc.cvtColor(mGrayMat, mRgbaMat, Imgproc.COLOR_GRAY2BGRA, 4);