Search found 4 matches

by MelB
2015-03-26T15:47:03-07:00
Forum: Digital Image Processing
Topic: Best way to convert a "cartoon" image from JPG to PNG?
Replies: 6
Views: 19543

Re: Best way to convert a "cartoon" image from JPG to PNG?

snibgo, here's what I came up with today after 5+ hrs of reading (and coding) about artifact removal, jpeg compression and vectorization algorithms. It's all still a bunch of messy Matlab/Octave code (I prefer it for quick 'messing around' with image coding). I use IM for decompression/compression b...
by MelB
2015-03-26T12:59:17-07:00
Forum: Digital Image Processing
Topic: Best way to convert a "cartoon" image from JPG to PNG?
Replies: 6
Views: 19543

Re: Best way to convert a "cartoon" image from JPG to PNG?

That looks really decent! Thank you! I'll play some more with options. I've also been playing with posterize but haven't nailed it right just yet. I'll post an update soon.
by MelB
2015-03-25T19:04:19-07:00
Forum: Digital Image Processing
Topic: Best way to convert a "cartoon" image from JPG to PNG?
Replies: 6
Views: 19543

Re: Best way to convert a "cartoon" image from JPG to PNG?

Then a script needs to figure out that many of these entries are (almost) the same colour. Lines 2, 3, 4, 7, 8 and 9 are almost the same, as are 5 and 6. After doing this grouping, the required colours are (probably) obvious. Well, that's where the complexity lies and none of it is really obvious (...
by MelB
2015-03-25T15:06:04-07:00
Forum: Digital Image Processing
Topic: Best way to convert a "cartoon" image from JPG to PNG?
Replies: 6
Views: 19543

Best way to convert a "cartoon" image from JPG to PNG?

Hi all, I've been a fan of this forum for a very long time and decided to register and ask for your wisdom on the problem that's been bugging me for a while. Quite often I come across some "cartoon" images (images that used to contain very few unique colors) that someone has (needlessly) compressed ...