Unable to set color transformer in rviz [closed]

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Hey guys,

I am trying to visulaize color point clouds on rviz, but i see nothing. I am using depth_image_proc/point_cloud_xyzrgb nodelet,

<launch>
  <node name="nodelet_manager" type="nodelet" pkg="nodelet" args="manager" output="screen"/>

  <node pkg="nodelet" type="nodelet" name="depth_mm_to_m" args="load depth_image_proc/convert_metric nodelet_manager --no-bond">
    <remap from="/image_raw" to="/camera/depth/image_raw" />
    <remap from="/image" to="/camera/depth/image" />
  </node>

  <node pkg="nodelet" type="nodelet" name="depth_to_points" args="load depth_image_proc/point_cloud_xyz nodelet_manager --no-bond"> 
    <remap from="/camera_info" to="/camera/depth/camera_info" />
    <remap from="/image_rect" to="/camera/depth/image" />
  </node>

  <node pkg="nodelet" type="nodelet" name="registration_depth_to_rgb" args="load depth_image_proc/register nodelet_manager --no-bond">
    <remap from="/rgb/camera_info" to="/camera/rgb/camera_info" />
    <remap from="/depth/camera_info" to="/camera/depth/camera_info" />
    <remap from="/depth/image_rect" to="/camera/depth/image" />
  </node>

  <param name="queue_size" value="5000" />
  <node pkg="nodelet" type="nodelet" name="depth_to_pointsrgb" args="load depth_image_proc/point_cloud_xyzrgb nodelet_manager --no-bond">
    <remap from="/rgb/camera_info" to="/camera/rgb/camera_info" />
    <remap from="/rgb/image_rect_color" to="/camera/rgb/image_color" />
   <remap from="/depth_registered/image_rect" to="/camera/depth/image" />
  </node>

</launch>

Basically I am unable to set Color transformer to RGB8 in Rviz.

If anybody has solution for this please let me know