About

This code is about .bag (ROS bag) to .png or .jpg (image) converting tool.
You can convert all the .bag files (sorted in ascending order by file name) in the directory.

How to use

0. Environment

Python 2.7 with Anaconda Envs (Windows not supported)
$ conda create -n rosbag2image python=2.7

1. Install python libraries

$ pip install pycryptodomex
$ pip install gnupg
$ pip install tqdm
$ conda install opencv

2. Launch python file

$ python exporter.py --bag_file={path of input ROS bag file directory} --output_dir={path of output image file directory} --image_topic={image topic name} --file_type={type of output image (png, jpg)}

Parameters

Name	Description	Default value
bag_file	.bag file path	"REQUIRED"
output_dir	output image file path	"/home/user/image"
image_topic	input image topic name	"/image_raw"
file_type	image file type	"png"

Results

• Terminal

• Directory structure

output_dir/  
    │   
    ├── bag1/  
    │   ├── images/  
    │   │   ├── 00000.png  
    │   │   ├── 00001.png  
    │   │   ├── 00002.png  
    │   │   └── ...  
    │   │   
    │   └── meta.csv  
    │   
    ├── bag2/  
    └── ...