Images of jazz legends (and a leaf... that is, an autumn leaf) play the changes from six jazz standards as MIDI art.
Includes the standards Autumn Leaves, Giant Steps, Night in Tunisia, Rhythm Changes (I Got Rhythm), Take the "A" Train, and Donna Lee, set to images of a leaf, John Coltrane, Dizzy Gillespie, Ella Fitzgerald, Duke Ellington, and Charlie Parker.
The algorithm for generating a MIDI file from a given image is roughly:
1. Run edge detection on the original image.
2. Dilate the grayscale edge image.
3. Downsample the image to a height matching the number of notes in the desired range.
4. Convert the downsampled image to MIDI by constraining the notes to certain pitches over time.
I intend to explain the algorithm in more detail in a future video, stay tuned for that!
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▶ “Design Patterns: Elements of Reusable Object-Oriented Software” by Erich Gamma, Richard Helm, Ralph Johnson, & John Vlissides: amzn.to/49fpr7R
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29 сен 2024
