【python图像处理】txt文件数据的读取与写入

#一列n行，逐行读取
def load_file_to_array(file_name, rows, cols):
array = np.ndarray(shape = (rows, cols), dtype = float, order = 'C')

data_file  = open(file_name)
data_lines = data_file.readlines()
data_file.close()

idx = 0
for data in data_lines:
raw_array[idx % rows][idx/cols] = float(data)
idx = idx +1

return array

#txt中的数据本身就按 mxn 排列的矩阵
def load_file_to_array(file_name, array):

array = np.loadtxt(file_name, dtype = np.float)

return

#直接将矩阵写入txt
def write_array_to_file(file_name, array):

np.savetxt(file_name, array, fmt = "%d", delimiter = ' ', newline = '\n')

return array