Hey man, i am newbie on this, would you put the instructions stept by step for people can understand better how install... thanks for that, and I'm sorry for troubles...
Step 13/32 : RUN add-apt-repository ppa:xqms/opencv-nonfree
---> Using cache
---> 53ad82037df1
Step 14/32 : RUN apt-get update
---> Using cache
---> cbf924837874
Step 15/32 : RUN apt-get install libopencv-nonfree-dev
---> Running in 35a6c3c737a9
Reading package lists...
Building dependency tree...
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
libopencv-nonfree-dev : Depends: libopencv-features2d-dev (= 2.4.8+dfsg1-2ubuntu1xqms1~trusty1) but 2.4.8+dfsg1-2ubuntu1.2 is to be installed
Depends: libopencv-nonfree2.4 (= 2.4.8+dfsg1-2ubuntu1xqms1~trusty1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
The command '/bin/sh -c apt-get install libopencv-nonfree-dev' returned a non-zero code: 100
Unable to find image 'rgbdemo/openni:latest' locally
docker: Error response from daemon: pull access denied for rgbdemo/openni, repository does not exist or may require 'docker login'.
See 'docker run --help'.