5 ms·
And printing in just 3-tone color potentially increases the information density by a factor of 8.
by fiatmoney 14y ago
And printing in just 3-tone color potentially increases the information density by a factor of 8.
- SonicSoul 14y ago... at a cost of durability. Tho some sort of error recovery algorithm (along the lines of parity archive) could be used.. adding redundancy at a lower rate than what is gained from additional colors..
- duaneb 14y agoColor might be useful as redundancy: For example, one could read the data into HSV; the bit being stored could be replicated three times, once in Hue, once in Saturation, and once in Value. I'm not sure how practical this actually is, especially on the radical end of those values. Also, this kind of redundancy doesn't help against coffee spills, just printing errors, and not even well against those.
- deleted 14y ago[deleted]
- jws 14y agoThree color will take three times as many bits as input and store three times as many bits. Each pixel cell will have eight possible values, but that is just three times the information.
- gus_massa 14y agoThe color of the ink usually changes much faster, so it could be a problem to try to read it later. If the information is stored digitally, probably it is still possible to read it with the right calibration. But if the information is stored analogously it is really a big problem: for example http://secrethistoryofstarwars.com/savingstarwars.html http://secrethistoryofstarwars.com/savingstarwars.html