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scikit-image

[Solved] Extracting the elements matching the filter

November 1, 2022 by Kirat

I’m basing this answer on a very similar answer I wrote just a few hours ago. #from sklearn.feature_extraction.image import extract_patches # similar to numpy’s stride_tricks from numpy.lib.stride_tricks import as_strided data = np.array([[1, 1 , 0 , 0 , 0 , 0 , 1 , 0], [1, 1 , 1 , 0 , 0 , 1 … Read more

Categories Solved Tags numpy, scikit-image, scipy

[Solved] how to change the particuler elements of an array

September 23, 2022 by Kirat

You can use a 2D convolution on the 1s with a 3×3 kernel of 1s to identify the centers of the 3×3 squares, then dilate them and restore the non 1 numbers from scipy.signal import convolve2d from scipy.ndimage import binary_dilation # get 1s (as boolean) m = data==1 kernel = np.ones((3, 3)) # get centers … Read more

Categories Solved Tags numpy, python, scikit-image, scikit-learn

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