How can I pack my images into the app?

Question

I have written a imageprocessing app with javacv. I have some samples which are there to find some objects on a taken picture. The problem is that my program just gets nullpointerexception.

static String objectFilename = "assets/sblinksoben.png";

object = cvLoadImage(objectFilename,
                CV_LOAD_IMAGE_GRAYSCALE);

The first one is the path and the last one is how I load the image. Evertime when I check it with my debugger it only stands object = null.

So my guess is that the images are not getting packed into the .apk and the program will not find anything.

Does someone have solution for it?

Thanks in advance.

Answer 1

You need to use AssetManager to load files from the assets folder of your project.

Not sure about the cvLoadImage() method, but maybe it has a version which will take an InputStream of the image. In that case you can use AssetManager.open() to load the image from your assets and pass it to cvLoadImage() .