Re: [djatoka-devel] Are the "levels" and "dwtLevels" metadata components ever different
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Re: [djatoka-devel] Are the "levels" and "dwtLevels" metadata components ever different
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From: Ryan C. <rc...@gm...> - 2010-11-25 16:06:14
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If you have an example of desired input and output I could tell you for sure, but I don't think things are currently how you'd like them. The scales are always relative to the extracted level. We could add a new parameter though. On the rest front, I completely agree and I'll be interested to see the URL patterns you use. I'd like to get a djatoka v2 out that is mavenized, restful, and with unit and integration tests. I work on this as I get time. Cheers, Ryan On Nov 24, 2010, at 11:18 PM, Younos Aboulnaga <You...@bi...> wrote: > Thank you Ryan, a float height and width did work when the scale is also float. This makes everything relative to the width and height of the full image at the level selected; i.e., to get back the right image size, the caller have to know what level to use, right? Correct me if I'm wrong please, because I was hoping to be able to determine the region as a ratio of the image at the highest level, then use a numeric scale to be able to control the image that is sent back on the network. > > By the way, this is done in the course of developing a RESTful interface for the Djatoka server. OpenURL is great, but our clients are not used to it. I can make this wrapping interface available for download.. people can also find it useful if they prefer to run Djatok on the same server that stores the images inside the firewall. > > Best regards, > Younos ABOULNAGA > > Software Development Engineer > Bibliotheca Alexandrina > Cell: +2 012 4490444 > > > > -----Original Message----- > From: Ryan Chute [mailto:rc...@gm...] > Sent: Wednesday, November 24, 2010 5:22 PM > To: Younos Aboulnaga > Cc: djatoka-devel > Subject: Re: [djatoka-devel] Are the "levels" and "dwtLevels" metadata components ever different > > The svc.scale parameter with a 0.X value should do the job. > > Example from demo server: > http://african.lanl.gov/adore-djatoka/resolver?url_ver=Z39.88-2004&rft_id=info:lanl-repo/ds/5aa182c2-c092-4596-af6e-e95d2e263de3&svc_id=info:lanl-repo/svc/getRegion&svc_val_fmt=info:ofi/fmt:kev:mtx:jpeg2000&svc.scale=0.5 > > Let me know if otherwise. > > Cheers, > Ryan > > On Wed, Nov 24, 2010 at 2:56 AM, Younos Aboulnaga > <You...@bi...> wrote: >> Many thanks. Anything about my third message; that using a float value for >> the height and width of the region returns the error message: “For input >> string: X“? >> >> >> >> Best regards, >> Younos ABOULNAGA >> >> Software Development Engineer >> Bibliotheca Alexandrina >> Cell: +2 012 4490444 >> >> >> >> From: rc...@gm... [mailto:rc...@gm...] >> Sent: Tuesday, November 23, 2010 5:13 PM >> To: Younos Aboulnaga >> Cc: djatoka-devel >> Subject: Re: [djatoka-devel] Are the "levels" and "dwtLevels" metadata >> components ever different >> >> >> >> The target size for the smallest djatoka resolution is 96 pixels. >> >> >> >> From gov.lanl.adore.djatoka.util.ImageProcessingUtils.java: >> >> public static int getLevelCount(int w, int h) { >> >> int l = Math.max(w, h); >> >> int m = 96; >> >> int r = 0; >> >> int i; >> >> if (l > 0) { >> >> for (i = 1; l >= m; i++) { >> >> l = l / 2; >> >> r = i; >> >> } >> >> } >> >> return r; >> >> } >> >> >> >> And thanks for the heads up on the escaping issue. >> >> >> >> Ryan >> >> >> >> On Nov 23, 2010, at 6:50 AM, Younos Aboulnaga wrote: >> >> Oh, many thanks.. they seemed to be always equal because of the second >> constraint (levels cannot be greater than dwt levels). But is it 92 or 96? >> >> >> >> Best regards, >> Younos ABOULNAGA >> >> Software Development Engineer >> Bibliotheca Alexandrina >> Cell: +2 012 4490444 >> >> >> >> >> From: Jason Ronallo [mailto:jro...@gm...] >> Sent: Tuesday, November 23, 2010 4:51 PM >> To: Younos Aboulnaga >> Subject: Re: [djatoka-devel] Are the "levels" and "dwtLevels" metadata >> components ever different >> >> >> >> Some of the JP2s I use do have different dwtLevels from Djatoka levels. I'm >> not exactly sure how these different levels effect things. Depending on your >> your image is processed you can have a difference between dwtLevels and >> Djatoka levels. >> >> >> >> This is the most I know about the topic: >> >> http://sourceforge.net/apps/mediawiki/djatoka/index.php?title=Djatoka_Level_Logic >> >> >> >> Jason >> >> On Tue, Nov 23, 2010 at 9:34 AM, Younos Aboulnaga <You...@bi...> >> wrote: >> >> Are the "levels" and "dwtLevels" metadata components ever different >> >> >> >> Best regards, >> Younos ABOULNAGA >> >> Software Development Engineer >> ICT Department >> Bibliotheca Alexandrina >> P.O. Box 138, Chatby >> Alexandria 21526, Egypt >> Website: www.bibalex.org >> Tel: +2 03 4839999, Ext: n/a >> Fax: +2 03 4820405 >> >> ________________________________ >> >> "I know of no more encouraging fact than the unquestionable ability of man >> to elevate his life by conscious effort." Henry David Thoreau >> >> <image001.gif> >> >> >> >> ------------------------------------------------------------------------------ >> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500! >> Tap into the largest installed PC base & get more eyes on your game by >> optimizing for Intel(R) Graphics Technology. Get started today with the >> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. >> http://p.sf.net/sfu/intelisp-dev2dev >> _______________________________________________ >> djatoka-devel mailing list >> dja...@li... >> https://lists.sourceforge.net/lists/listinfo/djatoka-devel >> >> >> >> ------------------------------------------------------------------------------ >> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500! >> Tap into the largest installed PC base & get more eyes on your game by >> optimizing for Intel(R) Graphics Technology. Get started today with the >> Intel(R) Software Partner Program. 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