More operations
	n Data access n int rgbpixel(int x,int y) – Converts the plane information into a pixel in the direct color model of java. n public abstract int upixel(int x, n                            int y, n                            int plane) n - returns unsigned integer pixel n public abstract float fpixel(int x, n                              int y, n                              int plane) – Returns the pixel in the range -1 to +1.