[OLPC India] Scan resolutions

Wed Apr 7 00:41:27 EDT 2010

Hi Soundar,

Here are my recommendations for the pilot scan,

JPG Scan:
1. DPI=72, Black & White (should not exceed - 1200x900px)
2. DPI=72, 8 bit Color (should not exceed - 800x600px)

PDF Scan:
DPI=72, Optimized for web, Color
DPI=72, Optimized for web, Black& White

The reason why I am requesting these different modes for the pilot is to
check the quality & file sizes. The XOL (zip) file for each collection
should be within  6MB to 7MB.
Ideally, we should be able to package 3 to 5 textbooks in one XOL collection
for one class within the 7MB limit.

Hope this clarifies.

Harshal

On Tue, Apr 6, 2010 at 9:13 PM, Soundar <soundar at eaccessbpo.com> wrote:

>  Hello Harshal,
>
>
>
> Thanks. If I am doing the pilot for the Std 1 Text books for OLPC. I would
> like to know the DPI & Mode of the Pages to be scan ( 300 dpi / 1 bit Black
> & Whit or 300 dpi gray, if we are do the scanning in Gary the file size to
> large .) please advice the same.
>
>
>
> Regards,
>
> Soundar M
>
> *eAccess*
>
> New No.42, Old No.2,
>
> Vellalar Street,
>
> Near Best Hospital,
>
> Kodambakkam,
>
> Chennai - 600 024
>
> Mail : soundar at eaccessbpo.com
>
> Phone : + 91 - 44 - 43565774
>
> Mobile : + 91 - 9543009993
>  ------------------------------
>
> *From:* Harshal Jawale [mailto:hjawale at gmail.com]
> *Sent:* Wednesday, April 07, 2010 8:52 AM
> *To:* India at lists.laptop.org
> *Cc:* Soundar; Sameer Verma
> *Subject:* Re: Digitizing Primary school textbooks for OLPC, India
>
>
>
> Agreed Sameer. Now that Soundar has shown interest in doing textbook scans
> - I think we should open this for inputs from others.
>
> To keep this discussion streamlined and focused, I would like to suggest
> following discussion points:
>
>    1. To facilitate digitization of primary school textbooks, Soundar has
>    offered his services to scan and digitized textbooks so that they can be
>    used on OLPC. There are two formats which look attractive,
>
>    a) HTML - as Sameer rightly points out, its easy to keep these on
>    school servers. For this we would just need image scans of the pages. The
>    images would need to be optimized to reduce the file sizes. Also, these
>    would need to be packaged so that the HTML navigation can be incorporated
>    using Javascript or simple hyperlinks.
>
>    b) PDF - this is the easy option and can also be kept on the school
>    server.
>
>    Thoughts? This is pilot test so lets keep it simple without getting
>    into painful technical discussions.
>    2. Can someone check on copyright & legal aspects of scanning primary
>    school textbooks? Can the scans be used for educational purpose? If not,
>    what approvals are needed and from whom?
>    3. Soundar, since you are based in Chennai, can you take couple of Std
>    1 textbooks from your local schools? Try to find a kid you know and borrow
>    the textbook for scanning. Please scan in JPG as well as PDF format. We do
>    not need them to be 'editable'
>    4. Once we do a pilot scan, then we can check if volunteers across
>    India can help to collect primary school textbooks in local languages to be
>    sent to Soundar who can then scan them for XO.
>
> Thanks,
>
> Harshal
>
> On Tue, Apr 6, 2010 at 6:37 PM, Sameer Verma <sverma at sfsu.edu> wrote:
>
> On Tue, Apr 6, 2010 at 4:20 PM, Harshal Jawale <hjawale at gmail.com> wrote:
> > Hello Soundar,
> >
> > Thank you for your email and interest in helping out OLPC.
> >
> > Here's what I think:
> >
> > The biggest shortcoming of OLPC in India (& elsewhere) is the lack of
> > content. Ofcourse, it has built-in activities and tools etc but when it
> > comes to learning for exams, how can it help the children? I do not have
> a
> > clear understanding of it.
> >
> > This is where you can provide immense value and help.
> >
> > The idea is very simple -
> > Digitize textbooks of Std 1 to 4 (primary school) for OLPC. And, to start
> > with, you can focus on Science, Maths and one language.
> >
> > Most of the syllabus and curriculum is determined by the State Govts. -
> in
> > many cases, the Govt publishes the textbooks and heavily subsidizes it
> for
> > primary students.
> > Now, if instead of carrying paper textbooks, if these kids had it all on
> > their XO or could access it using the XO- it changes the whole equation
> on
> > how the XO gets used! The students don't need to carry any books at all.
> >
> > Do you think you have the capacity to softcopy (digitize) textbooks from
> Std
> > 1 to 4 for 10 major Indian Languages? That would be around (4 classes x 3
> > subjects x 10 languages = 120 books)
> >
> > If you can do this, I am hoping that we can request volunteers around
> India
> > to ship you textbooks. You can then create the soft-copies and I can help
> > package the collection for XO.
> >
> > Sameer, what do you think?
> > I am aware that softcopies take disk space which the XO may not have.
> But,
> > school server can host this or an additional SD card can also help solve
> the
> > problem. In any case, this shouldn't be a big deal. I am also betting
> that
> > since the Govt owns the rights to the educational material, they won't
> have
> > problem if this is made freely available to all kids in India.
> >
> > Harshal
>
>
>
> On Tue, Apr 6, 2010 at 6:27 PM, Soundar <soundar at eaccessbpo.com> wrote:
>
> Hello Harshal,
>
> Thanks for the reply. Really I am very happy to do this. I would like to
> know whether the all text books in softcopy ( only for image (PDF ) or
> editable Soft copy.) please advice the same. How I will get the entire text
> book.
>
>
>
> Regards,
>
> Soundar M
>
>
>
>
>
> There are two basic pathways to content. Either it is prepackaged by
> the country/state or the school/teachers create it. So, for instance
> you want electronic versions of textbooks, then the books have to be
> scanned or digitized (OCR). NCERT has already done this in an
> experimental mode. http://www.ncert.nic.in/textbooks/testing/Index.htm
> Anything that's HTML/web based for exams etc. are usable with a school
> server. A lot of the material is not clear legally for reuse in such
> environments.
>
> The mode of self-exploration and development of content locally is
> based on activities such as Write (word processing), Memorize (memory
> matching), etc. TamTamEdit is a music editing system that allows for
> building card-based music scores, which can then be played in
> TamTamJam.
> http://tamtam4olpc.files.wordpress.com/2007/03/new-tamtam-90-flat.png
>
> Etoys is its own authoring system. Sandeep Surve, the teacher in
> Khairat did some of his own development early on. I saw this when I
> was there in 2008. http://www.youtube.com/watch?v=ZgKy0SuZJHk
>
> Nepal is using a HTML and Javascript framework that they have
> developed (http://wiki.sugarlabs.org/go/Karma).
>
> The choices are several. A lot depends on who is authoring and how it
> is delivered.
>
> Note: A good bit of this discussion should happen on the lists so that
> others can chime in.
>
>
> cheers,
> Sameer
> --
> Dr. Sameer Verma, Ph.D.
> Associate Professor, Information Systems
> Director, Campus Business Solutions
> San Francisco State University
> http://verma.sfsu.edu/
> http://cbs.sfsu.edu/
> http://is.sfsu.edu/
>
>
>
>
>
>
>
> Soundar M
>
> *eAccess*
>
> New No.42, Old No.2,
>
> Vellalar Street,
>
> Near Best Hospital,
>
> Kodambakkam,
>
> Chennai - 600 024
>
> Mail : soundar at eaccessbpo.com
>
> Phone : + 91 - 44 - 43565774
>
> Mobile : + 91 - 9543009993
>
>
>
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