java - Accessing Image Data Bytes in ARCore

Question

I've created an ARCore Session and attached an OpenGL texture id through the Session#setCameraTextureName method to display my camera data. I'd like to have access to the camera image data bytes displayed on the texture.

ARKit and Tango provide access to the image bytes for each frame but there doesn't seem to be anything that easily provides that in the ARCore API.

Is there any other way I can access the image bytes when using ARCore?

Answer 1

Maybe that could help you I wanted to obtain the camera view in a bitmap form. I have tested on Samsung s8.

    int w=1080;
    int h = 2220;
    int b[]=new int[w*(0+h)];
    int bt[]=new int[w*h];
    IntBuffer ib = IntBuffer.wrap(b);
    ib.position(0);
    GLES20.glReadPixels(0, 0, w, h, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, ib);

    for(int i=0, k=0; i<h; i++, k++)
    {//remember, that OpenGL bitmap is incompatible with Android bitmap
        //and so, some correction need.
        for(int j=0; j<w; j++)
        {
            int pix=b[i*w+j];
            int pb=(pix>>16)&0xff;
            int pr=(pix<<16)&0x00ff0000;
            int pix1=(pix&0xff00ff00) | pr | pb;
            bt[(h-k-1)*w+j]=pix1;
        }
    }

    sb=Bitmap.createBitmap(bt, w, h, Bitmap.Config.ARGB_8888);