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Groups > comp.lang.java.programmer > #13201

Re: EXIF tag handling in Java

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On Mon, 26 Mar 2012 13:29:00 -0700, Lew wrote:

> On Monday, March 26, 2012 12:52:10 PM UTC-7, Martin Gregorie wrote:
>> On Mon, 26 Mar 2012 11:56:10 -0700, Lew wrote:
>> 
>> > Martin Gregorie wrote:
>> >> If the PHP menu generator is unacceptably slow when dealing with
>> >> EXIF tags, I'll use the aesthetically ugly trick of keeping the
>> >> captions as a separate CSV list (filename,caption) which will
>> >> probably be faster since at the start of the run it can be loaded
>> >> into a Hashtable (Java)
>> >> or associative array (PHP) once and will stay in memory while the
>> >> menu builder is running.
>> > 
>> > I recommend against use of 'java.util.Hashtable' in favor of the
>> > modern (since 1998) 'Map' implementations.
>> 
>> Noted. I only considered Hashtable because they are favoured by some of
>> the javax.imageio.* packages - scarecely surprising since most of these
>> packages seem to have been around since at least Java 1.4.
> 
> Very, very surprising since the modern collections classes were
> introduced in Java 1.2 and the javax.imageio package in Java 1.4.
> 
> You should check the Javadocs.

I did: for some operations you need to use a filter which is based 
java.awt.image.ImageFilter. This gets passed properties via the
setProperties(Hashtable<?,?>) method.


-- 
martin@   | Martin Gregorie
gregorie. | Essex, UK
org       |

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Thread

EXIF tag handling in Java Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-24 21:37 +0000
  Re: EXIF tag handling in Java Marty Blake <blake3334@nowhere.invalid> - 2012-03-24 23:13 -0400
    Re: EXIF tag handling in Java Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-25 13:09 +0000
      Re: EXIF tag handling in Java Jeff Higgins <jeff@invalid.invalid> - 2012-03-25 11:42 -0400
        Re: EXIF tag handling in Java Jeff Higgins <jeff@invalid.invalid> - 2012-03-25 12:22 -0400
          Re: EXIF tag handling in Java Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-25 17:10 +0000
        Re: EXIF tag handling in Java Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-25 16:46 +0000
          Re: EXIF tag handling in Java Jeff Higgins <jeff@invalid.invalid> - 2012-03-25 12:59 -0400
            Re: EXIF tag handling in Java Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-25 17:15 +0000
              Re: EXIF tag handling in Java Jeff Higgins <jeff@invalid.invalid> - 2012-03-25 14:08 -0400
                Re: EXIF tag handling in Java Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-25 18:34 +0000
  Re: EXIF tag handling in Java Knute Johnson <nospam@knutejohnson.com> - 2012-03-25 10:46 -0700
    Re: EXIF tag handling in Java Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-25 18:13 +0000
  Re: EXIF tag handling in Java "John B. Matthews" <nospam@nospam.invalid> - 2012-03-25 14:45 -0400
    Re: EXIF tag handling in Java Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-25 23:37 +0000
      Re: EXIF tag handling in Java Lew <lewbloch@gmail.com> - 2012-03-26 11:56 -0700
        Re: EXIF tag handling in Java Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-26 19:48 +0000
        Re: EXIF tag handling in Java Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-26 19:52 +0000
          Re: EXIF tag handling in Java Lew <lewbloch@gmail.com> - 2012-03-26 13:29 -0700
            Re: EXIF tag handling in Java Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-26 21:58 +0000
              Re: EXIF tag handling in Java Lew <lewbloch@gmail.com> - 2012-03-26 16:24 -0700
                Re: EXIF tag handling in Java Gene Wirchenko <genew@ocis.net> - 2012-03-26 18:19 -0700
                Re: EXIF tag handling in Java Lew <lewbloch@gmail.com> - 2012-03-26 19:03 -0700
                Re: EXIF tag handling in Java Gene Wirchenko <genew@ocis.net> - 2012-03-27 09:06 -0700

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