Update edge.py

[SujoyKG]

added edge detector based on Sujoy's algorithm

[luispedro]

Sorry for the delay, but this fails on travis (also, locally):

https://travis-ci.com/github/luispedro/mahotas/builds/170839189

[luispedro]

Also, this PR and #111 should be merged into one or does this one completely subsume the previous one?

[SujoyKG]

Sorry for the delay, but this fails on travis (also, locally):

https://travis-ci.com/github/luispedro/mahotas/builds/170839189

But what's the error Luis? I am not getting/clear... Please help.

[SujoyKG]

Also, this PR and #111 should be merged into one or does this one completely subsume the previous one?

These are the test cases

[luispedro]

The test cases should be with the code together in the same PR

But, in any case, the code does not even pass a smoke test: it mixes tabs & spaces.

[SujoyKG]

The test cases should be with the code together in the same PR

But, in any case, the code does not even pass a smoke test: it mixes tabs & spaces.

I will correct the space/tab errors & resubmit. But I am not sure how to put both (test case + function) together in one PR. Can you please help Luis?

[luispedro]

You can update PRs by adding commits to their respective branches. It does not need to be a single commit per PR.

[coveralls]

Coverage increased (+0.04%) to 97.449% when pulling 57e5245 on SujoyKG:patch-2 into 382fb2a on luispedro:master.

[SujoyKG]

This is final commit for function 'sujoy()'. Please accept changes.

[SujoyKG]

This is final commit for function 'test cases'. Please accept changes.

[SujoyKG]

Hi Luis, "build" is complete on Travis. Added few more test-cases also. sorry for so many "commits"; as I am new to GITHUB. Thanks.

[SujoyKG]

Is there anything wrong, that you are not merging, Luis?

[luispedro]

Is this approach being used? I only saw your manuscript, but I did not find some citations and/or comments from users.

[SujoyKG]

I don't know who are using this. However this has got accepted in Julia Image Library (https://juliaimages.org/stable/examples/contours/sujoy_edge_demo/#Edge-detection-using-Sujoy-Filter) & also in the process of inclusion in a Java Image Library. Soon I shall copyright this. Thanks.