https://www.youtube.com/watch?v=bjBZEKdlLD0
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This is the most understandable Fourier transform of an image.
- https://www.youtube.com/watch?v=qB0cffZpw-A
- The x and y of the transformed image represent the wave length of each direction’s wave.
- By combining the x and y of the transformed image, the wave can be tilted.
- Does the size of the transformed image (ndarray.shape) have no relation to the original image?
- To be verified.
- Can we think that the brightness of each cell represents the intensity of the wave?
- No, it’s different.
- The waves are not simply overlaid, but mathematically added together.
- The brightness represents the weight when adding them together.
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Demo of image Fourier transform