在python中读取二进制大字节序文件 [英] Reading binary big endian files in python

问题描述

我想使用python读取ieee big endian 64位浮点格式的大型二进制文件，但是在获取正确的值时遇到了麻烦.我在matlab中有一种工作方法，如下所示:

I'd like to use python read a large binary file in ieee big endian 64bit floating point format, but am having trouble getting the correct values. I have a working method in matlab, as below:

fid=fopen(filename,'r','ieee-be');
data=fread(fid,inf,'float64',0,'ieee-be');
fclose(fid)

我在python中尝试了以下方法:

I've tried the following in python:

data = np.fromfile(filename, dtype='>f', count=-1)

此方法不会引发任何错误，但是它读取的值非常大且不正确.任何人都可以帮助您阅读这些文件的方法吗?预先感谢.

This method doesn't throw any errors, but the values it reads are extremely large and incorrect. Can anyone help with a way to read these files? Thanks in advance.

推荐答案

使用>f将为您提供单精度(32位)浮点值.相反，尝试

Using >f will give you a single-precision (32-bit) floating point value. Instead, try

data = np.fromfile(filename, dtype='>f8', count=-1)

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