… float/double and signed/unsigned mixing.

* Header guard cleanup (making sure naming is compliant with C++ standards and consistent).

* Removing un-needed nullptr checks.

* Removing SSE warnings for x64 builds (as SSE is enabled by default no need for a flag)

* Reverting Mat deletion

- name of revision
- better scripts for model download (not only in Dropbox also OneDrive)

…e. (#578)

Updating OpenCV macros.

Removing a TBB dependence for code parallelization (done through OpenCV's parralel_for_

Updating the 64 bit OpenBLAS version for Windows to 0.3.3 (50% perf improvement on certain machines)

…ameter.

- Automatically choose correct path to the model files so that it works for both, source code compilation and binary use
- Use absolute paths in the system exists methods

Adding appveyor for 2017

* Updated Dockerfile 

The current one seems outdated, which has no dlib and no cmake 3.2 support

* Removing unnecessary installs

…o OpenFace in C# (#697)

* Travis OpenCV4 update, testing Ubuntu with new OpenCV

* Fix to Ubuntu travis

* Another attempt at OpenCV 4.0 for Ubuntu

* And another OpenCV attempt.

* Simplifying the travis script

* Ubuntu OpenCV 4 support.

* Updating to OpenCV 4, for x64 windows.

* Fixes to move to OpenCV 4 on windows.

* Travis fix for OpenCV 4 on OSX

* Renaming a lib.

* Travis opencv4 fix.

* Building OpenCV4 versions using appveyor.

* Attempt mac travis fix.

* Small travis fix.

* Travis fix attempt.

* First iteration in boost removal and upgrade to C++17

* Test with ocv 4.0

* Moving filesystem out of stdafx

* Some more boost testing with cmake.

* More CMAKE options

* More compiler flag changes

* Another attempt at compiler options.

* Another attempt.

* More filesystem stuff.

* Linking to filesystem.

* Cmake fix with target linking.

* Attempting travis with g++-8

* Attempting to setup g++8 on travis linux.

* Another travis change.

* Adding OpenBLAS to travis and removing g++-8

* Fixing typo

* More travis experiments.

* More travis debugging.

* A small directory change.

* Adding some more travis changes.

* travis typo fix.

* Some reordering of travis, for cleaner yml

* Removing `using namespace std` in order to avoid clash with byte and to make the code more consistent.

* Working towards removing std::filesystem requirement, allow boost::filesystem as well.

* Making boost an optional dependency

* Fixing std issue.

* Fixing cmake issue.

* Fixing the precompiled header issue.

* Another cmake boost fix.

* Including missing files.

* Removing unnecessary includes.

* Removing more includes.

* Changes to appveyor build, proper removal of VS2015

* If boost is present, do not need to link to filesystem.

* Removing un-needed link library.

* oops

* Mac attempt at opencv4 travis.

* Upgrading OCV to 4.1 on VS2018

* Downloading OpenCV binaries through a script

* Triger an appveyor build.

* Upgrading VS version.

* Attempting VS2017 build

* Adding win-32 libraries for OpenCV 4.1

* Adding OpenCV 32 bit libraries.

- correct intersection over union
- added overlap detection after all models are tracked

Missing header in cmake.

Updating ./install.sh by removing old dependencies and making sure it works on fresh installs of Ubuntu 16.04 and Ubuntu 18.04

…g directly to the x64 dll's)

… into develop

* - Use staged container builds to improve caching and reduce size
- Image size reduced from 8 GB to 1.6ish
- Switched from Make to Ninja for faster builds that do not hog processor
- Removed unneded dependencies
- Added to .dockerignore
- Readme for docker stuff

- Staged Builds
    - Docker's overlay FS means that `rm`ing files does not reduce size
    - Once build artifacts are build, the build dependencies are no longer needed
    - Both of these can be solved by building in a temporary image and copying
    only the needed libraries in
    - Leverages DESTDIR to generate a directory structure that can be just
    copied onto the `/` of the filesystem
    - Similarly, the data files (like models) can be downloaded ahead of time
    into their own image and copied in. This saves on network IO.
    - Anything in a RUN directive that is non-deterministic (e.g. downloading
    a file from a link, the content of that link changes) does not cause a cache
    miss, so if you need to update something RUN uses, either modify the
    dockerfile or build with `--no-cache` to force a rebuild
- Switch to Ninja
    - cmake can generate many types of build systems
    - Ninja builds faster than GNU Make
    - `make -j` has a tendency to lock up my system when building locally
    - Do not need to tell ninja how many jobs to run
- .dockerignore
    - Paths in .dockerignore are basically invisible to dockerd, so when dockerd
    zips up the build context, all of the cruft can be ignored
    - it is beneficial to docker build speed to add any large, unnecssary files
    and directories to .dockerignore.
    - Just remember they cannot be seen by dockerd

* removing cruft and some format fixes

* updated dockerfile to opencv 4.1.0

…have boost installed. (#738)

… into develop