5,732 reputation
1033
bio website vyznev.net
location Helsinki, Finland
age
visits member for 3 years, 1 month
seen Jan 23 at 21:25

I'm a PhD student in biomathematics, working on stochastic individual-based models of evolution in spatially structured populations. My other interests include cryptography, programming games and puzzles, photography and graphic design.


I'm the main author and maintainer of the Stack Overflow Unofficial Patch (SOUP), a user script for browsers with GreaseMonkey-compatible user script support (Firefox, Chrome, Opera, possibly Safari) that fixes or works around a number of outstanding issues with the Stack Exchange user interface.

I tend to answer a lot more questions than I ask. Some answers I'm rather proud of:

CC-Zero Please consider any (original) code I post to Stack Overflow and other Stack Exchange sites to be released under CC-Zero unless stated otherwise. You may do whatever you want with it and don't have to credit me in any way, although of course that would be nice.


Jul
17
comment What is the best way to create light-weight PNG images?
@Adam: Actually, no, they don't. Pngcrush and optipng both use zlib for the compression, whereas pngout uses its own, slower but more efficient, compression routine. Anyway, I did a quick unscientific test to confirm this, starting with commons.wikimedia.org/wiki/… scaled down to 320 x 240 px in the GIMP (57190 bytes). Both pngcrush (with or without -brute) and optipng (with -o3 or higher) produced identical output files of 57012 bytes each, while pngout compressed the image down to just 55533 bytes (as did using optipng and pngout in sequence).
Jun
14
awarded  Revival
Jun
14
comment My Screenshoots are “too light” for printing
Note the your multiply-by-itself trick is basically equivalent to applying gamma expansion with a gamma value of 2.0.
Jun
14
comment Creating image planes for 3d character modeling, but front reference is not straight on
Ps. @RapsFan1981: It might help if you told us what software you're actually using for the 3D modeling. You're not going to be able to rotate the photo in a 2D image editor, but you might be able to adjust the projection plane in the 3D software to account for the tilt.
Jun
14
comment Creating image planes for 3d character modeling, but front reference is not straight on
The edit to the title by @Yisela significantly changes the question, and IMO not in a good way: my answer (if I had to give one) to the original question would've simply been "It depends on the 3D software you're using; check the manual." To the new question, as phrased in the current title, it's "You can't. It's impossible." Admittedly neither of those are very helpful answers, but at least the original question could in principle get a better answer from someone else. Frankly, I'm tempted to revert the title to the original one.
Jun
14
comment Are there methods for cutting down on file size with animated gifs without decreasing quality?
The GIF format itself supports partial frames and different frame disposal methods that allow this even without CSS. In fact, the OP's animation is already fairly well optimized in that manner, probably because the program used to generate it optimized it automatically. Running it through my favorite GIF optimizer does reduce its size by about 8%, but that's not much of a difference compared to the unoptimized version, which is more than twice as large.
Jun
13
awarded  Nice Answer
May
22
answered Automatically remove overlays from a set of identical images using Gimp
May
13
comment How to colorize a layer with semi transparent borders to a specific color in GIMP?
Can you give us an example of the icon as it is, and of what you'd (approximately) want it to look like? It's kind of hard to tell from your description what you actually mean. (I'm visualizing a white shape on a transparent background, but I suspect that's not what you really mean.) In any case, I suspect that the answer will involve layer masks, and possibly Color to Alpha, but it's hard to be sure.
May
13
comment Enlarge path (make bolder) in Inkscape
Heh... I'd upvote your answer just to give you the rep, but I seem to have done that already. :)
May
10
comment Can I edit layered PNGs like I can with Fireworks in Photoshop or any other product?
Similar question on SuperUser: superuser.com/questions/50044/…
May
9
comment Inkscape can not blur Bezier line if it is connected to the outer end of a spiral
This has to be a bug. Please report it to the Inkscape developers.
May
9
comment Why do some logos look.. old? How does design age?
@DA01: I'd say sufficient brand presence can overcome the fashion effect. When I see a logo with slab serif capitals and horizontal striping, I don't think "that looks so 70's", I just think "that looks like the IBM logo" (even though there certainly were plenty of other tech companies with similar logos in the 60's / 70's / 80's). Same for the Nike "Swoosh"; I don't associate it with any specific period, I just associate it with Nike.
May
2
comment Scaling image in gimp without losing definition of characters
The original text appears to be about 11 px tall. (I say "about" because even the original text is strongly anti-aliased, and the top and bottom of the line don't fall exactly on pixel boundaries. It's definitely between 10 and 12 pixels, though.) The scaling factor was 40%, so that actually makes the scaled text nominally about 4.5 pixels tall. And yes, this was scaled with the Lanczos3 algorithm.
May
1
reviewed Approve Strange annoying 1px line when I save a PDF from InDesign
Apr
28
comment Why does this poster look off, like it's lacking something to focus on?
Fix your kerning.
Apr
28
comment Designing GUI for mobile apps working in bright sunlight environment
@KMSTR: A black shiny surface is really a black surface (LCD panel, in this case) under a shiny surface (glass cover). Any specular reflections off the glass aren't much affected by the color of the LCD panel under it, except that they're easier to see against a dark background than against a light one. The real lesson here is that glossy screens suck in brightly lit environments.
Apr
28
comment Enlarge path (make bolder) in Inkscape
If you're going to use tricks like this to make "faux bold" text, you might as well just scale the whole text down to compensate (and/or start with a slightly smaller size). Also, don't forget to add some extra letter spacing.
Apr
28
answered Enlarge path (make bolder) in Inkscape
Apr
28
comment Enlarge path (make bolder) in Inkscape
Nice link. If you added a summary of the method into your answer, I'd upvote it.