This year's #ISCEV http://iscev.org
symposium was perticularly nice, methinks. Many excellent scientific contributions, especially from our host country (no cargo cult science there!), smooth proceedings, everything just fine. One major complaint: too much good food!
There's a gallery of the dinner at the casltle available now:
The “Olympics" at the end at lake Bled were also particularly well organised, quite funny with singing and boating. We should always have singing (even if “my” team doesn't win)!
Furthermore, Lubljana (the 2nd “l” is silent) is a beautiful city, with wonderful people. You feel safe, everything's clean, people smile, a good mood pervades all. Everyone speaks English, thanks to non-dubbed movies/TV.
Ich bin hier schon mehrfach auf TTIP eingegangen. Hier ergibt sich die Gelegenheit, einen kleinen Beitrag dagegen(!) zu leisten:
Or in English
Malheureusement je ne sais sas parlez Français…
The worst expectations coming to pass already!
The amazing #waifu2x algorithm http://waifu2x.udp.jp/ can largely reduce pixel artifacts due to discretisation. It can also reduce the typical JPEG compression artifacts when the strong compression uses only the low coefficients with poor discretisation of the discrete cosine transform. What's more, this algorithm is #opensource and can be obtained via #github .
The quality improvement really amazes me. In the accompanying example I started with a very low quality image (left) on purpose, on the right is the waifu2x result.
What this means to me in practice is that I will have much less work manually cleaning up poor quality example images for my presentations.
While the hype of #thedress is deservedly over, my paper on this will appear soon in “Der Ophthalmologe”, prompting me to a renewed attempt at colour sampling of its #colors . Outcome is the attached figure. You can see more here
and the full stand-alone R code to produce this figure here
Initially I had programmed the colour space conversions with my own RGB→XYZ matrix in a loop. Finding, finally, by chance the built-in "convertColor" function and converting everything to vector operation speeded up the processing by about a factor of 100.
Looking forward to corrections to my R code!
After the #ISCEV symposium in Ljubljana we decided to stay for a few days in beautiful Slovenina, and had resevered at Lake Bohinj. A pearl in the Slovenian Alps. 20 km east of lake Bled, this lake is larger, more beautiful IMO, and much less touristy than lake Bled. Beautiful for water activities, hiking, climbing, and winter sports.
I have this beautiful demo :) where you can sample the #dress colour under your cursor: http://michaelbach.de/ot/col-dress/
And a bug haunted me on this – sometimes the colours where drawn from totally wrong positions. Today I solved the puzzle: it depends on device resolution, specifically “retina displays” versus “non-retina…”. On nearly all platforms we have now display resolutions which are more than 5 times higher than the traditional 72 dpi. This is dealt with largely successfully by modern browsers. In my case, on high-resolution devices the coordinates of the mouse cursor have to be multiplied with “Window.devicePixelRatio” (https://developer.mozilla.org/en-US/docs/Web/API/Window/devicePixelRatio)
to correctly index into the image to extract its colour values. Ok, one problem solved – life has more for me.
This exceptional #illusion was described 50 years ago by Celeste McCollough and it is still (1) an outstanding aftereffect that can last for months (!) and (2) not understood.
To celebrate these 50 years, I have now added it to my collection of visual phenomena and optical illusions http://michaelbach.de/ot/col-McCollough/
To help you make it through the boring minutes (!) of adaptation, I have added an interesting (?) fixation task.
Unfortunately, the new Photos application on MacOS does not support manipulating the location data when the GPS info is wrong or missing.
After a little recherche, I came up with Exiftool
Very nice, needs to be accessed via the terminal / command line. And wow, does it have a multitude of options! Took me a while to peruse the manual to come up with:
exiftool -n -GPSLongitude='7.85' /Users/bach/Desktop/IMG_6728.JPG
exiftool -n -GPSLatitude='48.0' /Users/bach/Desktop/IMG_6728.JPG
The "-n" argument means that the location is given as decimal fraction rather than minutes etc.
I hope this helps whoever wants to tackle similar problems.
- Ophthalmology Dept, Medical School, Freiburg University, GermanySection Head, present
- Humboldt-Gymnasium1960 - 1970
- Landheim Schondorf/Ammersee1966 - 1968
- Ruhr UniversityPhysics, 1970 - 1972
- Albert Ludwigs University of FreiburgPhysics, Psychology, Computer Science, 1972 - 1977
Wirkungslose Mittel in der Apotheke: Zurück zum "Scheiß des Monats" - SP...
Bachblüten, Algenextrakte - in Apotheken gibt es viele Produkte, die nicht die versprochene Wirkung haben. Ein Pharmazeut benannte das als "
Op-Ed: Microsoft layoff e-mail typifies inhuman corporate insensitivity
Robotic letter is an unfortunately normal example of how companies talk to employees.
There's no need to apologise for the sorry state of Britain. But I'm sorry
Even Americans have been forced to accept the value of our favourite self-effacing five-letter word
Gesamtschau der Studien zur Homöopathie | Detritus
Detritus - Gedanken, biologisch abgebaut - ein Blog von Martin Ballaschk
Day4 - How we screwed (almost) the whole Apple community
Day4 är ett svenskt produktionsbolag specialiserade inom motion graphics och film för webb, spelfilm, TV, företagsfilm med mera.
From idea to science: Knowing when you've got a good idea
Turning scientific musings into raw science—in a way that makes everyone happy.
Magma Announces ExpressBox 3T - Thunderbolt to PCIe Expansion Chassis
1-800.285.8990. Products. PCI Express Expansion. ExpressBox 1; ExpressBox 2; ExpressBox 4 (2U); ExpressBox 4 (1U) (x8); ExpressBox 4 (1U) (x
How To Be a Genius: This Is Apple's Secret Employee Training Manual
We recently showed you just how badly some of Apple's retail elite behave when no one's watching, but surely they were taught better, right?