01-11-2012, 05:20 PM | #16 |
Junior Member
Posts: 1
Karma: 10
Join Date: Jan 2012
Device: Kobo
|
Just wondering whether the sketch function would work with a stylus suitable for touchpads? I'm thinking of getting a kobo touch for uni, and the sketch function would be very useful for saving lecture notes!
|
01-11-2012, 09:24 PM | #17 |
Wizard
Posts: 2,454
Karma: 5469320
Join Date: Jul 2010
Device: Kobo
|
Don't know if you've played with it yet, but the sketch application is very Beta/experimental so it's probably not going to work for what you're looking for. Not sure if a stylus would work, but it should since it's an IR sensor (tip might be too small??).
|
01-12-2012, 12:38 AM | #18 | |
Kobo Toucher
Posts: 62
Karma: 103942
Join Date: Sep 2011
Location: Vancouver
Device: Kobo Touch
|
Quote:
Feel free to prove me wrong though! |
|
01-12-2012, 06:59 AM | #19 |
Enthusiast
Posts: 29
Karma: 37564
Join Date: Nov 2011
Location: Edinburgh, UK
Device: Kobo Touch
|
I tried using a nintendo DS stylus and it didn't work. I've found a cotton bud works quite well.
|
01-12-2012, 01:28 PM | #20 | |
Just me :)
Posts: 106
Karma: 1282
Join Date: Jan 2012
Location: Germany
Device: Kobo Touch
|
Quote:
PNG-24 is more like jpg, using true color and compression by merging areas of similar color etc. Simplified you could say, that it saves "Rectangle of 4x4 Pixels in Red" instead of: 1 pixel Red - 1 pixel Red - 1 pixel Red - 1 pixel Red 1 pixel Red - 1 pixel Red - 1 pixel Red - 1 pixel Red 1 pixel Red - 1 pixel Red - 1 pixel Red - 1 pixel Red 1 pixel Red - 1 pixel Red - 1 pixel Red - 1 pixel Red The more you compress, the more similar colors become substituted by just "red" - thus the blocking and the reduction of colour-variety. As oppposed to jpg in a PNG-24 alpha-transparency is possible, so a pixel can be "X% transparent" to the pixel beneath. For the kind of sketches that can be made with this, it does not really make a big difference what is used though I would agree, that greyscale gif or png-8 would suffice.... |
|
01-12-2012, 02:13 PM | #21 |
Enthusiast
Posts: 35
Karma: 4244
Join Date: Aug 2011
Location: USA
Device: Kobo Aura HD, Kobo Touch
|
I believe PNG is lossless. JPG is lossy and will do what you state. Smaller files in PNG would come from software working harder to compress since no info is tossed away.
|
01-12-2012, 02:15 PM | #22 |
Wizard
Posts: 1,326
Karma: 1077205
Join Date: Jun 2011
Device: Kobo Touch, Sony T1, Kobo Mini
|
Biggest problem with sketch is they don't go into their own folder so they are easily found when you have many books in you library.
|
01-12-2012, 02:58 PM | #23 | |
Just me :)
Posts: 106
Karma: 1282
Join Date: Jan 2012
Location: Germany
Device: Kobo Touch
|
Quote:
But then, my "expertise" on this comes from the eye of a designer, not a programmer |
|
01-12-2012, 03:47 PM | #24 | |
Member
Posts: 11
Karma: 10
Join Date: Nov 2011
Device: Kobo Touch
|
Quote:
PNG is lossless. Lossless compression works by removing redundant information from a source. Lossy compression works by removing redundant as well as some necessary information. The trick for lossy compression is ensuring the compression only removes the less-than-essential information. |
|
Thread Tools | Search this Thread |
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
New Calibre Kobo Driver allows deleting of Kobo Free books | timlegge | Kobo Reader | 46 | 08-27-2011 10:16 PM |
Cannot scribble (sketch) on text | lily77 | Onyx Boox | 5 | 07-12-2011 06:42 PM |
Sell Kindle/Kobo M-Edge Cover-Black and Other Kobo Covers | MorganM | Flea Market | 0 | 06-21-2011 09:58 PM |
Your 200,001st sketch | Logseman | Writers' Corner | 2 | 04-10-2010 12:01 AM |
Unutterably Silly Dead (or pining?) Parrot sketch originated in Ancient Greece | Patricia | Lounge | 28 | 11-14-2008 04:29 PM |