Replies: 2 comments 1 reply
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FWIW, I added this to stackoverflow. https://stackoverflow.com/questions/71224256/how-to-rotate-an-image-using-only-the-mxnet-ndarray-and-contrib-nd-array-apis And if you are interested in the original code https://github.com/rtp-aws/devpost_aws_disaster_response/blob/main/python/gray_rotate_two.ipynb |
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Hi, these coding lines should prove useful in your implementation. https://www.sciencedirect.com/topics/computer-science/image-rotation PS See also here https://stackoverflow.com/questions/64197754/how-do-i-rotate-a-pytorch-image-tensor-around-its-center-in-a-way-that-supports for pytorch implementation to get ideas. |
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I tried to post this on the mxnet forum, but it was marked as spam and hidden. 8-/
Hello
I hate it, but I could not figure this out so I'm hoping I might find some help here. I am trying to rotate images for a given rotation using mxnet. I know I can do it more easily in other frameworks, but if nothing else this is a good learning exercise. With that said, here is what I have got so far.
Given a simple 4x4 pixel image,
Also given a simple rotation matrix,
This is what I have so far:
The result of the data after this step looks like this.
So, my problem is that in the last step, I can not figure out how to assign the output based upon the
given results. I have the rotated indices, the original data and the original indices. I thought it might
just be somethine like this:
But this is a fail
I also tried some with the other contrib api
But that is not quite it either.
Any advice is appreciated.
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