Extracting compressed image data from bag file results in doubled up or dropped frames
Hi,
I'm trying to extract compressed images from a bag file. Here is my launch file:
<launch>
<!-- Play Bag File -->
<node pkg="rosbag" type="play" name="rosbag" required="true" args="-r
0.2 /media/nick/Samsung\ USB/bag_files/_2018-07-20-16-30-09.bag"/>
<!-- Uncompress images -->
<node pkg="image_transport" type="republish" name="decompress_node" args="compressed in:=/webcam1/image out:=/webcam1/image" />
<!-- Extract images -->
<node name="extract" pkg="image_view" type="extract_images" respawn="false" required="true" output="screen" cwd="ROS_HOME">
<remap from="image" to="/webcam1/image"/>
</node>
</launch>
This results in some frames not being saved and some frames being saves multiple times. Also a lot of frames are saved out of order so the video I make out of the frames is really choppy.