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Discussion (56 Comments)Read Original on HackerNews
I'm quite fond of Spleen:
https://github.com/fcambus/spleen
It has a 5x8 font which has all of ASCII, but most glyphs are actually 4x8 and include horizontal spacing. I modified it to reduce the rest for a project I'm doing so all glyphs are 4x8. The result can be rendered on a 5x9 grid with a guaranteed line of horizontal and vertical spacing between all glyphs. It's very nice.
However, 5x5 isn't enough to draw "e" properly if you also want lowercase letters to have less height than uppercase, so you need at least 6 vertical pixels. And then that isn't enough to draw any character with a descender properly, so you need at least 7 vertical pixels (technically you should have 8 in order to allow "g" and "y" to have a distinct horizontal descender while still sitting on the baseline, but this is probably an acceptable compromise). And remember that in practice this means you will still need at least 8x6 pixels to draw each character, to allow for a visible gap between letters below and beside them.
(but yeah, it's not quite right, and is especially jarring in the nice, clean, blown up pixels in the top example)
The extra 1 pixel of height for the text in green, in particular, allowed for some cool "italic" styling, especially for letters like E, D, J, U, V
https://chinese.stackexchange.com/questions/16669/lowest-pix...
Yowsa. For those playing at home, that monitor is over 20 years old:
https://everymac.com/monitors/apple/studio_cinema/specs/appl...
https://tonypai.itch.io/3x3-pixel-font
Note: there are repeat glyphs here like c and o, though the example actually uses a different c somehow. But perhaps repeats are ok given context.
It reminds me people who research "colorizing grayscale photos", which do not exist anymore either (if you want a color photo of someone you met in your life, there probably exists a color photo of that person).
- https://github.com/akavel/clawtype#clawtype
- mandatory "Bad Apple" vid (not mine): https://youtu.be/v6HidvezKBI
(for the "splash screen" linked above I used font u8g2_font_3x5im_te: https://docs.rs/u8g2-fonts/latest/u8g2_fonts/fonts/struct.u8... and a multilingual u8g2_font_tiny5_t_all: https://docs.rs/u8g2-fonts/latest/u8g2_fonts/fonts/struct.u8...)
Find me a 0.66" OLED display for ~$1 that has hundreds of pixels on each side then.
> It reminds me people who research "colorizing grayscale photos", which do not exist anymore either (if you want a color photo of someone you met in your life, there probably exists a color photo of that person).
What train of thought led you to think people are primarily researching colorising new B&W photos? As opposed to historical ones, or those of relatives taken when they were young? You can take a colour photo of granddad today but most likely the photos of him in his 20s are all in black and white.
Every grayscale photo of someone famous has already been colorized during the past 50 years. If there are only grayscale photos of you, you were probably born before 1900, and all your friends or your children (who might want to colorize your photo) are probably dead, too.
2. Don’t forget about B&W films! Getting automatic methods to be consistent over a long length is still not 100% solved. People are very interested in seeing films from WW1 and WW2 in colour, for instance.
3. Plenty of people (myself included) have relatives in their 80s or 90s. Or maybe someone wants to see their ancestors from the 19th century in colour for whatever reason?
Bloody hell, warn people before you post things like that.
There are also several 32x32 led panels, which one could imagine needing some text.
Also, this kind of thing is just interesting, regardless of the usefulness.
https://www.crystalfontz.com/product/cfal12856a00151b-128x56... - 128x56
https://www.crystalfontz.com/product/cfag12864u4nfi-128x64-t... - 128x64
There's a whole world of embedded devices with wide varieties of screen resolutions.
I think you will not be able to read 5x5 pixel letters on that display (a letter would be about 1 mm tall).
* a huge corpus of historical imagery
* cheaper grayscale cameras + post processing will surely enable all sorts of uses we haven't imagined yet.
* a lower power CCD and post-processing after the fact or on a different device allows for better power budget in cheap drones (etc).
* these algorithms can likely be tuned or used as a stepping stone for ones that convert non-visible wavelengths into color images.
And that's just off the top of my head as someone who doesn't really work with that stuff. I'm sure there are plenty of other reasons I can't think of.
Also, if there are only grayscale photos of you, you were probably born before 1900, and all your friends or your children (who might want to colorize your photo) are probably dead, too.
It's a very strange argument to make: there exist some photos therefore other photos may not be colorized!
Plenty of systems did it like CP/M on the Spectrum +3 and it looks pretty decent.
I would have loved to have seen a sample of the 4x5, not just the 5x5.
(Could play around with how many x's to put on the first and third lines, particularly whether to set the first/last bits on those lines as "corners" or make it more rounded.)
I would also modify the top of lowercase e in a similar fashion.
https://fontstruct.com/fontstructions/show/1656341/tom-thumb
I haven't done the pixel-by-pixel deviation checking, but they may be comparable and independently derived!
I can't at all.
But I'm backfilling a lot of information from context, the same way that this works: https://www.dictionary.com/articles/typoglycemia
It would have been much harder to read a series of random words, or another piece of text with a less predictable structure.