scottdupoy

Yes you're right it was a 2D cross-correlation which is very analogous to a convolution

That's exactly how it worked, hand rolled FFT and filtering following the method in "Numerical Recipes for C"

Interesting to see something like this!

My computer science masters thesis was based on the same goal. I used a 2D convolution which meant you can merge images with inexact overlaps. I had to run a high-pass filter first to limit the image details to their edges only or else the convolution incorrectly matched bright areas.

In reality merging pictures is further complicated because the source images may be slightly rotated relative to each other and also due to the images being slightly curved due to lens distortion.

My supervisor wanted me to do a PHD on the topic!

My partner and I regularly disagree on blue vs green as the colours become more of a gray colour - might be interesting to randomise the brightness of the colours being displayed then seeing if the skew towards people perceiving blue Vs green changes as the colours become closer to gray.

I did exactly the same thing a few years ago - now it feels like a pull service that I'm in control of, instead of a push service with an algorithm controlling the content I view.

Correct!

I've been attempting cryptic crosswords for 20+ years and this is a great answer.

My favourite clues: Die of cold (3-4) hijklmno (5)

All the tips you've given won't help with either of those, or your 'geg' clue, which is interesting. Maybe the best clues are all about lateral thinking.

> While the cookie tin performed much better than the mylar bags, and could provide a modicum of useful attenuation under some circumstances, it was not sufficient to provide meaningful assurance of signal isolation at any frequency. However, it was unique among the containers tested in providing tasty snacks during measurements

Back in the day working for Symbian I used to regularly have to run a load of automated Bluetooth tests. Unfortunately there were 200+ engineers in the close vicinity of my test setup and they all had smartphones and all had Bluetooth turned on, causing loads of the test to timeout. We were very pleased with ourselves when we thought of using a biscuit tin as a Faraday cage to try and improve things. Didn't work as well as we hoped, but got the tests running within their timeouts. I always thought it'd be interesting to try using an old microwave.

Best thing was that we got to eat all the biscuits first :)

I couldn't agree more. In these difficult times this has given me hope both in terms of the state of humanity and also in the future of the internet.

> The gasoline produced from carbon is then intended for burn...

If it's captured from the atmosphere and then burnt then surely it's zero-sum (apart from the energy cost of capture). Is this not better than releasing historically captured fossil fuels with a larger net increase in atmospheric levels?

If the capturing process is net-negative in terms of CO2 emmissions then perhaps we could invest in capturing more than we require for fuel - ie pull the CO2 out of the atmosphere and stockpile it in non-gaseous form. My experience is that people are willing to pay to clear their conscience and feel that they're making a positive climate change impact, but irrationally very resistant to changing their own behaviour.

> That’s actually a huge opportunity though. If you have a small edge in information, you can make millions.

Also, if you can act on public information faster than others then you effectively have that edge in information.

Are atmospheric CO2 levels rising to an extent that currently projected levels would have a noticeable effect in the same way?