修改： README.md

# CSST-COMMOM-CRMASK

# CSST-COMMOM-CRMASK - Introduction

detect cosmic rays and mask them 

**CRMask** is a module for detecting cosmic rays on the CSST images using state-of-art models. It should be also applied for images from other telescopes, as long as the images have the same data structure as that of CSST.

# 软件依赖

# Python package dependencies

依赖的python包numpy, scipy, matplotlib, astropy, ccdproc, pytorch, deepCR

The following python packages are needed to **CRMask**:

Ubuntu 20.04系统下安装方法

* astropy == 4.x (>= 5.0 will be tested in the future) 

* ccdproc >= 2.1.0

* deepCR >= 0.1.5

* matplotlib >= 3.1.2

* numpy >= 1.19.5

* pytorch >= 1.8.1

* scipy >= 1.3.3

sudo apt install python3-numpy python3-scipy python3-matplotlib python3-astropy python3-ccdproc

Install these package under Ubuntu 20.04 LTS:

        sudo apt install python3-numpy python3-scipy python3-matplotlib python3-astropy python3-ccdproc

        python3 -m pip install pytorch deepCR

# 使用方法

# Use guide

下载crmask.py，crmask.ini这两个文件。