查找边缘 可以强调图象的轮廓用彩色线条勾画出彩色图象边缘用白色线条勾画出灰度图象边缘
Find edges to emphasize the outline of the image outline the edges of the color image with colored lines outline the edges of the color image with white lines outline the edges of the grayscale image
以上为机器翻译结果，长、整句建议使用 人工翻译 。