Image meta data

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Boris Gorjan - 25 Jan 2006 08:56 GMT

Given a byte array representing a jpeg, gif, png, etc., is it possible to
extract image meta data (specifically: dimensions) using j2se _before_ the
actual decoding (with ImageIO.read())? How?

How about using external libraries? Which ones (commercial and free)?

Thnx.

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Andrey Kuznetsov - 25 Jan 2006 10:35 GMT

> Given a byte array representing a jpeg, gif, png, etc., is it possible to
> extract image meta data (specifically: dimensions) using j2se _before_ the
> actual decoding (with ImageIO.read())? How?
>
> How about using external libraries? Which ones (commercial and free)?

see http://reader.imagero.com
its free for non-commercial use.

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Andrey Kuznetsov
http://uio.imagero.com Unified I/O for Java
http://reader.imagero.com Java image reader
http://jgui.imagero.com Java GUI components and utilities

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Chris Uppal - 25 Jan 2006 12:05 GMT

> Given a byte array representing a jpeg, gif, png, etc., is it possible to
> extract image meta data (specifically: dimensions)

You could try Marco Schmidt's ImageInfo:

http://schmidt.devlib.org/index.html

-- chris

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Roedy Green - 25 Jan 2006 13:44 GMT

On Wed, 25 Jan 2006 12:05:34 -0000, "Chris Uppal"
<chris.uppal@metagnostic.REMOVE-THIS.org> wrote, quoted or indirectly
quoted someone who said :

>> Given a byte array representing a jpeg, gif, png, etc., is it possible to
>> extract image meta data (specifically: dimensions)
>
>You could try Marco Schmidt's ImageInfo:
>
> http://schmidt.devlib.org/index.html

and if you want something lighter weight, see ImageInfo in the
common11 utilities package. See
http://mindprod.com/products1.html#COMMON11

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Canadian Mind Products, Roedy Green.
http://mindprod.com Java custom programming, consulting and coaching.

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