const static int width = 512;					//image width 
const static int hight = 512;					//image hight
const int numPixels = width*hight;				//total numbers of pixels in image

unsigned short *arrIn = new unsigned short[numPixels];	//Array containing intensities

int index = 0;											//index in my array
int _x,_y;												//x and y of image
unsigned short lightInt = 65535;						//white
unsigned short darkInt = 0;								//black


	for(int row = 0; row < hight; row++){				//for-loop counting y
		_y=row;												//y increases 1 everytime x has gone from 0 to 511

		for(int kolonne = 0; kolonne < width; kolonne++){		//for-loop counting x
			_x=kolonne;											//x increases 1 until 511 and starts over from 0

			if(_x == _y){										//whenever x and y are the same, we make the pixel white, wich result in a white line from (0,0) to (511,511)
				arrIn[index]=lightInt;							
			}//end if

			else(arrIn[index] = darkInt);						//otherwise the rest should be black
			
			index++;											//going through the array.
		
		}//end for	

	}//end for