@tongtybj, @chibi314
please upload your bag files for color space detection which you used in ros-perception/opencv_apps#61 (comment)
If you have several bag files with different lighting condition, that's fine.
If you can provide bag file taken by real drone, with IMU data, that's much better. If not, bagfile with only images is fine for now.
@wkentaro will help you how to upload bag data