Adventures in Color Science: Reverse Engineering a Chinese Colorimeter CR30
Oct 19, 2025 · 17 min read · CR30 Colorimeter Reverse Engineering Color Science Python Protocol Analysis Spectral Analysis ·
I've always been fascinated by the intersection of hardware and software, especially when it comes to understanding how devices communicate. Recently, I developed a need for monitor calibration as well as properly color correct my photos. I've been looking at X-Rite, Datacolor and other calibration devices and am on …
Read MoreReduce spectral leakage in FFT analysis. Common Windows Rectangular (No Window) $$w[n] = 1$$ Hanning $$w[n] = 0.5 \left(1 - \cos\left(\frac{2\pi n}{N-1}\right)\right)$$ Hamming $$w[n] = 0.54 - 0.46\cos\left(\frac{2\pi n}{N-1}\right)$$ Blackman $$w[n] = 0.42 - 0.5\cos\left(\frac{2\pi n}{N-1}\right) + …
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