MotionEvent GetY() and getX() return incorrect values

getX() and getY() returns the values respective to the views that it was called on. Hence Let's say,

ImageView imV = (ImageView)findViewById(R.id.image_view);

Then you can get x,y using

x = imV.getX() + event.getX();
y = imV.getY() + event.getY();

Here I assume you have set the onTouchListener on imV.

Try using getRawX() and getRawY() instead of getX() and getY().