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From: Bakul Shah <bakul@iitbombay.org>
To: 9fans <9fans@9fans.net>
Subject: Re: [9fans] licence question
Date: Sat, 29 Jan 2022 14:14:44 -0800	[thread overview]
Message-ID: <AAD18109-9CCD-42FB-8509-56E33BA8509D@iitbombay.org> (raw)
In-Reply-To: <16434652910.557dFF03.267022@composer.9fans.topicbox.com>

Note that djvu would compress things very nicely. A full page
300dpi magazine color page that may be 25MB uncompressed will
compress down to 40K-80K or so and be very legible, much more
so compared a similar sized jpeg compressed image.

The current OSS djvu library is GPL but as far as I know the
original AT&T patent on the djvu technology has expired. If
anyone wants to reimplement it with a more permissive
license! The benefit is that there are a lot of existing djvu
encoded documents.

[Note: if anyone does decide to reimplement djvu, they should
not just take my word for it but verify that the djvu
patent(s) have indeed expired]

> On Jan 29, 2022, at 6:08 AM, ibrahim via 9fans <9fans@9fans.net> wrote:
> 
> A great amount of this size is caused by hand written sample solution scans for past exams provided as 300dpi images (png or ppm). Most of my notes are handwritten cause this way to provide solutions for exam questions is faster and simpler.

------------------------------------------
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  parent reply	other threads:[~2022-01-29 22:15 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-27 22:43 ibrahim via 9fans
2022-01-27 22:48 ` hiro
2022-01-27 23:33   ` ibrahim via 9fans
2022-01-28  0:05     ` hiro
2022-01-28  0:42       ` ibrahim via 9fans
2022-01-28  0:46         ` ori
2022-01-28  1:14           ` ibrahim via 9fans
2022-01-28  3:23             ` Kurt H Maier via 9fans
2022-01-28 12:01               ` ibrahim via 9fans
2022-01-28 21:59                 ` hiro
2022-01-29 13:03                   ` ibrahim via 9fans
2022-01-29 13:24                     ` hiro
2022-01-29 14:08                       ` ibrahim via 9fans
2022-01-29 14:59                         ` sirjofri
2022-01-29 18:11                         ` Grant Defayette
2022-01-29 19:00                           ` ibrahim via 9fans
2022-01-29 20:43                         ` hiro
2022-01-29 21:32                           ` ibrahim via 9fans
2022-01-29 21:42                             ` hiro
2022-01-29 22:23                               ` ibrahim via 9fans
2022-01-29 23:14                                 ` sirjofri
2022-01-29 23:27                                   ` hiro
2022-01-29 23:36                                   ` ibrahim via 9fans
2022-01-30  0:08                                     ` hiro
2022-01-30  1:45                                       ` ron minnich
2022-01-30  2:18                                         ` ibrahim via 9fans
2022-01-30 21:00                                           ` ron minnich
2022-02-01 15:08                                             ` ibrahim via 9fans
2022-02-01 17:06                                               ` Dan Cross
2022-01-29 22:14                         ` Bakul Shah [this message]
2022-01-29 22:40                           ` ibrahim via 9fans
2022-02-04 15:30                         ` Kent R. Spillner
2022-02-04 16:17                           ` Grant Defayette
2022-02-04 16:29                           ` ibrahim via 9fans
2022-02-04 21:12                             ` sirjofri
2022-02-04 17:48                           ` Kurt H Maier via 9fans
2022-02-05  0:08                             ` Frank D. Engel, Jr.
2022-02-05 16:47                               ` hiro
2022-01-29 14:26                     ` David Leimbach via 9fans
2022-02-01 14:12                       ` Dan Cross
2022-02-01 22:47                         ` hiro
2022-02-02 13:22                           ` Wes Kussmaul
2022-02-02 16:25                             ` ori
2022-02-02 18:22                               ` ron minnich
2022-02-02 19:00                                 ` ibrahim via 9fans
2022-01-29 16:15                     ` Wes Kussmaul
2022-01-29 16:56                     ` Bakul Shah
2022-01-29 17:17                       ` ori
2022-01-29 18:14                       ` ibrahim via 9fans
2022-01-29 18:58                     ` cinap_lenrek
2022-01-29 19:23                       ` ibrahim via 9fans
2022-01-29 20:48                         ` hiro
2022-01-29 21:18                           ` Steve Simon
2022-01-29 21:34                             ` hiro
2022-01-29 21:43                             ` ibrahim via 9fans
2022-01-29 22:44                               ` hiro
2022-01-29 23:26                                 ` ibrahim via 9fans
2022-01-30  7:55                           ` tlaronde
2022-01-30 13:44                             ` ibrahim via 9fans
2022-01-30 13:56                               ` tlaronde
2022-01-28  3:14 ` Lucio De Re

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