0.5.0 release

[danschultzer]

I would like to see if we can increase success rate with OpenCV before releasing the next version. This will be a full 0.5.0 release.

• Increase success rate on OpenCV preprocessor
  • Gradient lightning
  • Paper hitting edges of canvas/frame (contours has a difficult time there)
  • Bending of whole page (a sin wave alon vertical and horizontal)
  • Crumpled paper (random distortion across paper with difference in implosion/lightning)

[danschultzer]

With benchmark sample generator we can start to work on increasing success rate for OpenCV in a much easier way. I'll add a few things that the benchmark generator should do to test more edge cases.

[OwenMelbz]

@danschultzer are you intending on further updating this package?

Thanks

[danschultzer]

At some point yeah. OpenCV has had major updates since I made this issue and I'll probably redo some of #45. The reason I never got #45 merged was that the success rate improvement seemed minuscule and I was looking for something that could push it to 80%+.

Any PR's are of course welcome.

[Schultzer]

We should properly look at this again after tesseract 4.0.0 is released.

[motin]

We should properly look at this again after tesseract 4.0.0 is released.

Tesseract 4.0.0 was released 29th oct. Time to celebrate! :)

OpenCV has had major updates since I made this issue

Issue for upgrading to OpenCV 3: #48