|Re: OT: The first 4,000,000 digits of Pi, visualized in a single image|
Message #2 Posted by C.Ret on 26 Apr 2012, 12:01 p.m.,
in response to message #1 by Jeff Kearns
I really wonder how they keep 4'000'000 digits in a JPG picture of 960 x 540 pixels. If the compression rate is one pixel per digit of PI, the maximum of digits store in such an image size it at maximum 518'400.
It's only 12.96% of the advertize count!
Moreover, the JPG is a losy compressing process, so most of the PI digit are lost there!
OK. I always surprise how in the nowadays digital world, peoples have lost elementary notion of what a digit is!
Here a bunch of question following this remarkable link.
What will be the pixel Height and Width of an standard 4/5 proportion bitmap picture (standard) needed to store then 4'000'000 first digits of PI at the rate of one colored pixel per digit?
And for a 16/9 sized picture?
What, will be the bit depth to code for the 10 digits code (0 to 9) ?
What will be the minimal size of the corresponding bitmap image?
What make it impossible to share it on the Web ?
What is the pixel surface of the large black PI draws in the middle of the bitmap?
What is the consequence of the Height and Width adjustment to guaranty the 4’000’000 digits representation?