Off-topic:
Googling "complex-valued pixels" didn't bring up anything, but I'm interested in finding out more about that. What pixel-related information do the real/imaginary parts represent? What sort of applications does that have?
Googling "complex-valued pixels" didn't bring up anything, but I'm interested in finding out more about that. What pixel-related information do the real/imaginary parts represent? What sort of applications does that have?
If you compute the Fourier transform of a scalar-valued image, you obtain a complex-valued image. It would be nice to be able to process these transforms with gimp (e.g., to "paint" a few parts in black to set those frequencies to zero, thereby defining a band-pass filter).