Physics of Light and Color
It’s all electromagnetic (EM) radiation
- Different colors correspond to radiation of different wavelengths ?
- Intensity of each wavelength specified by amplitude
- Frequency ? = 2 ? / ?
- long wavelength is low frequency
- short wavelength is high frequency
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Don’t confuse with wavelength/frequencies and spectra in image processing
- in image processing these refer to spatial values of the signal
- in image formation these refer to the physical properties of the light
- Ideally, every image we render should have a full spectrum at every pixel