ubuntu@ip-10-0-0-214:~$ sudo apt-get remove libopencv-calib3d2.4 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libavcodec54 libavformat54 libavutil52 libdc1394-22 libgsm1 libgtkglext1
  libilmbase6 libmp3lame0 libopencv-core2.4 libopencv-features2d2.4
  libopencv-flann2.4 libopencv-highgui2.4 libopencv-imgproc2.4 libopencv-ml2.4
  libopencv-objdetect2.4 libopencv-photo2.4 libopencv-video2.4 libopenexr6
  libopenjpeg2 libopus0 libschroedinger-1.0-0 libswscale2 libtbb2 libva1
  libx264-142 libxvidcore4
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED:
  libopencv-calib3d2.4 libopencv-contrib2.4 libopencv-legacy2.4 python-opencv
0 upgraded, 0 newly installed, 4 to remove and 147 not upgraded.
After this operation, 4,255 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 137605 files and directories currently installed.)
Removing python-opencv (2.4.8+dfsg1-2ubuntu1) ...
Removing libopencv-legacy2.4:amd64 (2.4.8+dfsg1-2ubuntu1) ...
Removing libopencv-contrib2.4:amd64 (2.4.8+dfsg1-2ubuntu1) ...
Removing libopencv-calib3d2.4:amd64 (2.4.8+dfsg1-2ubuntu1) ...
Processing triggers for libc-bin (2.19-0ubuntu6.9) ...