micropython-ulab

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[FEATURE REQUEST] Add DCT

6

Add DCT-2 (Type-II Discrete Cosine Transform) functionality to ulab, similar to SciPy's implementation. DCT is widely used in image and audio processing applications. Wikipedia: https://en.wikipedia.org/wiki/Discrete_cosine_transform SciPy: https://docs.scipy.org/doc/scipy/reference/generated/scipy.fftpack.dct.html ## Technical Details...

zeroby0

Overlap and Add algorithm for fast convolution of long array

7

Hi everyone, This an implementation of the oaconvolve method that may be faster than convolve espiecielly when dealing with long arrays. Few things I'm not sure: - I don't think...

eleroy

[FEATURE REQUEST] Implement `unpackbits()`

5

Are there plans to implement [`unpackbits()`](https://numpy.org/doc/stable/reference/generated/numpy.unpackbits.html)? And what are good practices for getting the same result **_fast_** while `unpackbits()` is not implemented? I'd like to use the resulting bits as...

page200

[BUG] Build for 1 dimensional arrays fails

5

**Describe the bug** Error when building ulab for 1 dimension. **Configuration used** ``` #define ULAB_MAX_DIMS (1) // Limit array dimensions to 1D ``` **Output** ``` ../../../ulab/code/numpy/compare.c: In function 'compare_nonzero': ../../../ulab/code/numpy/compare.c:511:58:...

saraverbeecke