有如下的矩阵数据:
img =
[ 57,67,45,34,23,56,87,53,75,54;
34,43,54,23,16,34,65,76,53,45;
57,67,45,34,23,56,87,53,75,54;
]
imshow(img) 是有图案的,然后我 imwrite(img , './temp/~test.bmp'), 保存的图像为白色的,即结果如下。
[文件头][信息头][调色板][255,255,255,255,255,255,255,255,255,255; 255,255,255,255,255,255,255,255,255,255; 255,255,255,255,255,255,255,255,255,255; ]
请问我需要怎么保存这个图像? 我该怎么做?