Why the dataset images are black and white?

[c0zyb1ue]

The images I got from the rosbag file (especially ground-01 bagfile) in the new updated onedrive link has no color. Is it what you originally intended or an error?

[DanielChaseButterfield]

According to the original paper:

Among the dataset we provided, point clouds from LiDAR, positioning solution and raw measurements from GNSS receiver, and mono-colored images from cameras were strictly synchronized regardless of the triggering moment and the timestamp of data frames.

Thus, this seems to be intended by the paper authors.