生成余弦函数分布的条纹图，并且分别储存在四幅图中！-Generate a cosine function distribution of the fringe pattern, and were stored in the four figure!

求一幅模拟干涉条纹图的不同区域的条纹密度，并且用0-255表示，清晰，并且较为准确-Find a simulated fringe fringe pattern density in different regions, and said with 0-255, clear and more accurate

用于生成黑白测试条纹图，可用于普通2D显示或者3D显示器的测试与开发。-Can be used for testing displays.