Fix #3141: Add bins argument to hough_line()

[abarya]

Description

With the argument bins, the user can now specify distances at which he/she is interested in computing the transform.

Fixes #3141

Checklist

[It's fine to submit PRs which are a work in progress! But before they are merged, all PRs should provide:]

• Clean style in the spirit of PEP8
• Docstrings for all functions
• Gallery example in ./doc/examples (new features only)
• Benchmark in ./benchmarks, if your changes aren't covered by an
  existing benchmark
• Unit tests

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References

[If this is a bug-fix or enhancement, it closes issue # ]
[If this is a new feature, it implements the following paper: ]

For reviewers

(Don't remove the checklist below.)

• Check that the PR title is short, concise, and will make sense 1 year
  later.
• Check that new functions are imported in corresponding __init__.py.
• Check that new features, API changes, and deprecations are mentioned in
  doc/release/release_dev.rst.
• Consider backporting the PR with @meeseeksdev backport to v0.14.x

[pep8speaks]

Hello @abhishekarya286! Thanks for updating the PR.

Cheers ! There are no PEP8 issues in this Pull Request. 🍻

Comment last updated on August 04, 2018 at 12:15 Hours UTC

[abarya]

Hi @stefanv @jni. Please review.

[abarya]

Hi @jni. Any updates on this?

[emmanuelle]

@abhishekarya286 you should add new tests in order to test for number of bins different than the current default (for example, oversampling and undersampling).