Add ocr example

[AakashKumarNain]

No description provided.

[fchollet]

Thank you for the PR! This will be a great new example.

[AakashKumarNain]

Thanks @fchollet for the review. I will make the necessary changes

[AakashKumarNain]

@fchollet I have made all the changes except for removing the keras.backend part. I need to check if I need to change anything if I am directly using tf.nn instead of keras.backend

[fchollet]

Looks great! Thanks for the update.

[fchollet]

Note that the motivation for using tf.nn APIs is that they're documented and better-maintained. The backend APIs are undocumented, have not been touched in some time, and will eventually be deprecated. But for now, this will do.

[fchollet]

Looking good! Please address the last 2 comments and you can add the autogenerated files.

[AakashKumarNain]

Thanks for the review. I have made all the changes.

Note that the motivation for using tf.nn APIs is that they're documented and better-maintained. The backend APIs are undocumented, have not been touched in some time, and will eventually be deprecated. But for now, this will do.

Totally agree with you. My only concern here is that for some APIs, we haven't provided clear cut code examples for their usage (for example CTC related functionalities). So, both things are required: removing the backend and improving the documentation in nn. package

[fchollet]

LGTM, thank you for the great contribution!

[AakashKumarNain]

Thanks for the review