64* 8bit的bmp图片arnold变换，多重变换。-64* 64* 8bit conversion of bmp picture arnold, multiple transform.

读取一张BMP图像，显示其相关信息，并修改图片的颜色表，使得图片颜色改变以后另外存盘！ 只能是8bit的灰度图像才有颜色表，24bit的真彩色图片没有颜色表！-Read a BMP image, display information, and modify the color table of the picture, making the picture color change after another save! Only 8bit grayscale images have a

读取一张BMP彩色图像，显示其相关信息，并将彩色图片改成8bit灰度图片以后另外存盘！-Read a BMP color image display its related information and changed the color pictures 8bit grayscale image after another save!

实现16位raw图像转换为8位bmp,代码可用-this code can realize transform 16bit raw image to 8bit bmp image , it can work well