void drawImage(){
		p5.loadPixels();
		for (int i = 0; i < w; i++){
			for (int j = 0; j < h; j++){
				float b= Stig2D.constrain(vals[i][j], 0, 255);
				p5.pixels[(j*w)+i] = p5.color(b);
			}
		}
		p5.updatePixels();
	}