Timeline for What does this paragraph mean?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Jun 19, 2020 at 16:30 | comment | added | Cedron Dawg | @IvanZabrodin You are measuring a range of intensities in the spatial domain. Doing a fourier transforms (Magnitude spectrum) gives you a representation in which you are measuring a range of tonal component strength for a set of frequencies in the domain. Your last sentence doesn't make sense to me. Consider an image consisting of vertical stripes. In one direction there is no change in intensity and thus no high frequencies. Traverse across the stripes and you have a repeating pattern with a frequency. If you are not familiar with the 1D DFT, you should start with that. | |
| Jun 19, 2020 at 16:15 | comment | added | Ivan | But isn't this measure of fluctuations spatial rather than spectral? I would assume a spectrum of magnitude is just an ordered sequence of the magnitudes of all the pixels in an image? | |
| Jun 19, 2020 at 16:13 | vote | accept | Ivan | ||
| Jun 19, 2020 at 16:10 | history | answered | Cedron Dawg | CC BY-SA 4.0 |