theoh

61 ms·

541.
by theoh 8y ago
Um, the first point, in digital imaging, is that a pixel is not a little square. It's a sample. So it doesn't have any extension to blur. Any filtering invariably happens either at sampling or at reconstruction. https:/&#x2F
542.
by theoh 8y ago
Sinc is closely related to Bessel functions (which is what the Airy disc is). In image processing afaik it is interpreted as a radially-symmetric filter, if it's not just used as if it was separable (i.e. on the x axis, then on the y a
543.
by theoh 8y ago
I don't understand how the Gaussian can introduce ringing artifacts. It doesn't have any negative lobes. If the scene you are sampling contains arbitrarily high frequencies, there's no way to avoid aliasing, yes. But surely
544.
by theoh 8y ago
So, I'm assuming you know this, but the theoretically optimal pixel reconstruction filter is the sinc function. https://en.wikipedia.org/wiki/Sinc_filter For very high-quality work, I guess we have enough processi
545.
by theoh 8y ago
That's what they call a first-world problem... Enjoy it while it lasts.
546.
by theoh 8y ago
By miniature I mainly mean that the locos look like scale models of mainline steam locomotives: https://en.wikipedia.org/wiki/Henry_Greenly
547.
by theoh 8y ago
There are a couple of significant and actually, physically, miniature 15" gauge steam railways in the UK. I say a couple because the Ravenglass and Eskdale Railway (Cumbria) and the Romney Hythe and Dymchurch Railway (Kent) are the pre
548.
by theoh 8y ago
I'm not sure what you mean—but it is very important to note that the bulk of the work of creating a new, globally-internationalized typeface, is hard, tedious editing of glyphs and kerning tables etc. Sure, AirBnB staff were involved,
549.
by theoh 8y ago
Yep. "“Sunkenness” refers to the fact that intangible assets tend to have little or no market value, unlike, say, land or a factory. They have value as part of their owner’s business, but not to anybody else. This means that investme
550.
by theoh 8y ago
The font was commissioned from Dalton Maag, who specialize in this kind of work (as the second highest ranked comment notes). So if anything it is money that is being wasted, not employee time.
551.
by theoh 8y ago
I'm not sure what "Hindley-Milner type signatures" means. Obviously it is intended to refer to Haskell-style type signatures. Hindley-Milner, though, usually refers to a system of type inference which is independent of syntax
552.
by theoh 8y ago
From the Wikipedia page https://en.wikipedia.org/wiki/The_Two_Cultures "In his opening address at the Munich Security Conference in January 2014, the Estonian president Toomas Hendrik Ilves said that the current p
553.
by theoh 8y ago
Point taken. I love the Barbican. According to Wikipedia: "The City has a resident population of 9,401 (ONS estimate, mid-2016) but over 300,000 people commute to and work there." That is the breakdown I was trying to communicate.
554.
by theoh 8y ago
Actually, if you've been to central London recently, you'll know there is a huge amount of demolition and rebuilding going on: for example dead center on the west side of Tottenham Court Road. Office buildings in the centre, from
555.
by theoh 8y ago
Well, a Google search finds a number of articles/posts on the topic which make the observation that more nuance is needed in the conversation. So you are probably right that it is typically lacking, though the word nuance isn't to
556.
by theoh 8y ago
These are fine counterexamples. The existence of instances of borrowing that nobody objects to doesn't mean that the problem of cultural appropriation doesn't exist. It's a question of nuance, on a case-by-case basis. It&#x27
557.
by theoh 8y ago
It's a thankless job to try to convince anyone that what Picasso did was appropriation. Notoriously, he himself said (translated) "African art? Never heard of it." Cultural appropriation hurts when it's done by someone i
558.
by theoh 8y ago
Meteorite showers are pretty much that, aren't they?
559.
by theoh 8y ago
Boo!
560.
by theoh 8y ago
That's just one, very plausible, possible back story. ( https://en.wiktionary.org/wiki/clogs_to_clogs_in_three_gener... ) But some wealth is effectively a windfall. Tim Harford's point is that we aren't in
561.
by theoh 8y ago
That is an interesting post. it relates to the KISS philosophy, which apparently originated in the US military (at least, that name for it). Also the reformers of the 70s and 80s, the group around John Boyd, Pierre Sprey etc., really pushed
562.
by theoh 8y ago
If they didn't have to give anything up to get their wealth, then it can't be worth anything? Hardly. I don't think opportunity cost is really relevant in the case you mention.
563.
by theoh 8y ago
It sounds like you are literally offering to give a monad tutorial, which is brave because, notoriously, so many people have attempted that, usually using metaphors. Wadler's misleadingly titled earlier paper "The Essence of Funct
564.
by theoh 8y ago
The situation is actually a bit tricky. If they met over the internet, there's no way to guarantee the absence of a Man-in-the-Middle who has been allowing the romance to proceed without interference, but who tampers with the messages
565.
by theoh 8y ago
That's just how prestige works. It's a social phenomenon, not an objective reality. It can snowball. This book has an interesting but slightly reductive take on how prestige works in the arts: https://global.oup.com&#x2
566.
by theoh 9y ago
Same story here with Richard Serra: "Serra was invited to outline a proposal, for a fee, but said no. According to Cross, Serra told Ross, “You know what I do—you know that it’s going to be structural steel, you know it’s going to be m
567.
by theoh 9y ago
Hmmm, I guess if one has any alternatives at all, your evaluation of their desirability is going to be subjective. Including in the case of "offers one can't refuse". But, when are our evaluations not subjective? That is the
568.
by theoh 9y ago
There's a literature about switching costs. One result suggests that the present value (technical term) of the customer to the company is equal to the cost of switching away, under certain assumptions. Obviously this formula is unhelp
569.
by theoh 9y ago
Just to be clear, I am literally saying that IMHO it should be OK to converse in the comments without reading the link in question. If HN can't accommodate this, it's not a friendly platform for humans.
570.
by theoh 9y ago
As I read the comments on this post, the top reply contains multiple mathematical symbols which aren't rendering on my recent Android phone. You can't pretend that HN has a huge proactive team working on these issues. I'm loa

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