## olliess' recent activity

• It's possible. As a real world problem it seems highly unlikely that those exact samples would be collected from that (plotted) function. I suppose it's more interesting to ask why someone would ...
• This is a better example. As you know, there are some fairly standard ways of dealing with this one as well, that might be worth discussing. Out of curiosity, what are you using to plot these figures?
• For this example, the reconstruction based on Fourier series does an excellent job of reducing those errors with very little apparent downside.  ;)
• "Zombie" refers to the resurrection of a thread from ~2 years ago. While I appreciate your acknowledgment of my intellect, it is not strictly necessary for understanding the meaning here. How is ...
• Zombie threads notwithstanding, the idea of a "linear" function is fairly standard across fields. I believe he was talking about low-pass filtering before sampling. This would be quite effective at ...
• Yes, ironically it seems I was a participant in the linked thread, although I hardly remember it. Anyway, in replying you missed the point of the quote: Usually when we take a bunch of samples and ...
• What you are saying is that you know the conditions for the sampling and reconstruction theorems are violated, but you proceed anyway as if they were satisfied. That doesn't seem so different from ...
• I used "discrete" to avoid saying either "non-uniform" or "uniform" sampling. (See your own bolded text). I see now that it would have been less confusing to just say "sampling." I apologize. What ...
• Probably not, but you seemed to be making a point about the discreteness. My point is that uniform and nonuniform sampling both involve discrete samples. You said "non-uniform sampling does not ...
• That is why i mentioned discrete sampling. The entire domain is usually assumed to be periodic or some variation thereof. No what? (Not sure what you meant there.) That's fine. But as far as an ...
• Discrete sampling and reconstruction does traditionally assume periodicity, however. Luckily for our computer-challenged predecessors, the traditional photographic process produces the reconstruction!
• The aliasing artifacts could appear "pseudo-randomly" but still be noticeable. If you have N samples over length L then you have N knowns for fitting up to N basis functions. Thus N/L is very a ...
• I've also found it helpful to have a WB reference in exactly those situations. For green foliage, sea shores, etc., shot under natural light, I'm usually pretty happy with using the closest WB ...
• I have, and in the cases I've tried, it seems to give results that are pretty close to using a WhiBal card. My experience is that using the WB reading from the card is usually quite effective at ...
• Replied in In a word, no!
As I pointed out earlier, "pitch" might be the better analogy to "color."
• Replied in In a word, no!
I'd be willing to let the statement go, in the interests of getting back on topic. Call it a foolish reaction or deny it ever happened if you like.  ;)
• Do you suppose that we should be calling the "red" apple some other color because of this? I was just assuming that Dr. Fairchild has better things to do with his time. However, I may not ...
• It's a "red" apple. The implication is that there is some intrinsic "redness" of the apple which doesn't change, even though at some given moment it is (temporarily?) dark in the room. But yet ...
• Replied in In a word, no!
If you told me that "pitch" is a perceptual property, I would probably agree. However, I don't think that "sound" itself needs to be defined purely perceptually, and nor do physicists and ...
• Replied in In a word, no!
"Color" doesn't uniquely determine the wavelength(s) of photons being seen. However, given a photon (or enough photons of a certain wavelength to be perceived, anyway) the photons will be perceived ...
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