extract_image_channel.py

What is this?

Extract a specified channel from input image.

Subscribing Topic

• ~input (sensor_msgs/Image)

  Inpu image.

Publishing Topic

• ~output (sensor_msgs/Image)

  Image which is the extracted channel from input image.

Parameters

• ~channel (Int, default: -1)

  The channel which is extracted from the input image. If negative value channel is passed the extraction is skipped.

Sample

roslaunch jsk_perception sample_extract_image_channel.launch