a.Camera Model If the focal length of a single-lens camera is 0.5 meter, the object has a point with the Y-axis of 2 meters and the X-axis of 1 meter. When the object is 10 meters away from the central projection point of the camera, what are the x-coordinate and the y-coordinate of the pixel associated with the object point on the image? b.Histogram Stretching If the image has the grey level values as {8, 2, 7, 9, 9, 6, 10, 7, 5, 5}, what is the result of Histogram Stretching if we need to expand the range of the greylevel values to the range of 1-20?