Showing posts with label iliad iRex. Show all posts
Showing posts with label iliad iRex. Show all posts

Saturday, May 10, 2008

iLiad iRex pictures

As there's some interest in the iliad and other ebook readers, and as a follow-up to my previous post describing my general impressions of the iliad, I thought that posting some pictures would be interesting... Clicking on the images shows the original image size (note that the grain is in fact due to the iso setting rather than the iliad !)






This first picture shows an A4 PDF, not resized, and perfectly readable. As you can see, no problems either with the viewing angle.






The 16 gray levels work well enough for reading some comics :)






Another comic, close up.






One of the great thing with a reasonable resolution and antialiasing: you CAN put A4 scans of partitions, and IT IS readable :) -- here the Turkish March, from a freely available document scanned by the Bibliotheque Nationale de France (thanks!).






As you can see, the poor quality of the pictures (and the not-so-great white balance) are due to the actual lightning conditions :) -- and you can also see how well an e-ink device reacts to a direct spot lamp...


Finally, as it's one of the main use of my iliad and one of the main reasons I actually bought one, an A4 research paper:






As you can see, it's readable (albeit a bit small), with the PDF reader I use simply set in fullscreen mode.






Zooming on the same document with the camera (ie without touching the iliad) -- you can see how such A4 PDF documents are actually readable, without any kind of resizing (apart the fullscreen mode). The PDF reader application can also zoom the document if it's really necessary (using a simple gesture with the stylus), but I rarely use this feature (usually only for some diagrams if they are too small, not for the text itself).

Friday, April 11, 2008

Iliad iRex note taking and hand-writing recognition

I recently bought an Iliad iRex, a pretty awesome eBook reader. Among the cool features, it's running linux, an sdk is available, and it's really easy to hack stuff for it (for instance I wrote a simple script for downloading the 24h edition of The Guardian). Also, as shown with the previous link, the community is quite active :)

Just a couple of words about the iliad itself... the hardware is pretty awesome, with wifi, ethernet, wacom tablet, usb, mmc card and compactflash, audio jack...
the e-ink display is quite amazing too -- 768x1024 makes it precise enough to be able to read A4 PDF without too much problem (a great thing to review lots of research papers, believe me !).

The software side on the other hand... is a bit disappointing. Don't get me wrong: it's good enough, and some aspects are pretty cool. But you really unlock the possibilities of the devices by getting the root access and adding applications developed by the community (notably, the PDF viewer hacked by the community is fantastic, with gestures, etc.). Which means it's fine if you are a geek and not afraid to hack your device, but more annoying for your average consumer :-/
The other disappointing aspect is the (comparatively) low battery life: about 12-15 hours depending on the model (mine is a v1, the v2 do better), which is mostly caused by the fact that no sleep mode is available. Other eBook readers perform much better on that metric. To be fair they don't have wifi nor a wacom tablet :D ... so it's really a matter of choice.

All in all, it's a bit of a shame as really the platform is very nice, and with a bit more effort on the software side, Iliad would have a killer product on their hands. Oh, and yes the e-ink display refresh rate is slow, but curiously it's not that annoying, and having its full library in such small factor is absolutely fantastic.

Anyway... one of the really, really cool feature of the iliad is the presence of a stylus (i.e. the iliad display sports a wacom tablet), which allows you to annotate PDFs, take notes, etc.

I started to experiment a bit with the note taking feature of the iliad; the idea is that you can open a PNG image in the notes folder, and a copy will automatically be made where you can write on it (the image is being used as a background, so it's trivial to have customized backgrounds). But I then wanted to generate a PDF from those notes (i.e. combining the scribbles+PNG).

Iliad do provide a windows application to do all that, but it's a windows app, not really useful for me... there is a nice java application written by the community that allows merging scribbles with the PDF as well. Alas, the java scribble merging application only seems to work for PDF scribble; I guess it would be trivial to modify the java app, but I had a look at the xml scribbling format, and I saw that the format was really simple.

So I quickly wrote myself a MacOSX viewer for the notes, using the png image as a background, letting me print notes easily or convert them to PDF.

But then... I suddenly remembered the Ink handwriting recognition engine.

This thing comes straight from the ill-fated Apple Newton PDA (such a loss!), but what is nice is that it is available and installed by default on OSX.

Turns out it's not too difficult to feed Ink a set of custom datapoints, and after some tweaking it doesn't work too bad apparently, as can be seen on the screenshot...





So far, this is only highly experimental code, and it'll probably take a bit more time to have a really usable application. Still, pretty cool!