added: shi-tomashi corner generator

[thundersparkf]

Added a Shi-Tomashi corner generator module

Since corner generation is more dynamic in the pixels used, it would offer a better data abstraction. Plus it is also difficult to ascertain the how many corners were computed by any attacker.

Please let me know if there are any issues
Signed-off-by: thundersparkf [email protected]

[cedricbonhomme]

This seems to be an excellent contributions ;-) Thank you very much !
I will have a deeper look tomorrow about this Shi-Tomashi corner generator.

[cedricbonhomme]

Hi,
I have a small question... Where is the best place to round (or cast to int) the value here:
https://builds.sr.ht/~cedric/job/633518#task-test-103
x and y are not equal. I would like to make the test happy ;-)

[thundersparkf]

Hey! Yes

Firstly, this for consistency's sake the min_distance parameters needs to be changed to 10.0

And then also the
np.int0 line must be removed

[cedricbonhomme]

Perfect, it works. I just had to use assert_allclose with a custom relative tolerance.

https://github.com/cedricbonhomme/Stegano/blob/master/tests/test_generators.py#L180

I'll create a new release a bit later.