用python读取TIFF文件，可采用以下代码
framedim = [2048,2048]
nb_elem = framedim[0]*framedim[1]
offset = 4096
formatdata = np.uint16
f = open(path, 'rb')
f.seek(offset)#TODO: only header size for tiff !!
d = np.fromfile(f, dtype=formatdata, count=nb_elem).reshape(framedim)
写入TIFF文件，则需要pylibtiff库，具体参见
http://code.google.com/p/pylibtiff/
例如
from libtiff import TIFF
tif = TIFF.open(path, 'w')
tif.write_image(image)
image为二维ndarray
