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  how to read an image from a zipfile  (Read 1178 times)
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Offline emzic

Senior Duke





« Posted 2008-12-10 17:30:31 »

hello, i have a zip file that contains images, which i want to load so that they exist as BufferedImages.

i already got so far, that i have a ZipEntry and the corresponding BufferedReader but how can i convert the stream from the BufferedReader into a suitable format that is accepted by the ImageIO class?

thanks!

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Offline erikd

JGO Ninja


Medals: 16
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Maximumisness


« Reply #1 - Posted 2008-12-10 19:36:42 »

My first thought is to rename it to .jar, add it to your classpath and load the images as you would normally do.

Offline emzic

Senior Duke





« Reply #2 - Posted 2008-12-10 19:39:08 »

erikd, thanks for your help. that would be an option. maybe with loadRessourceAsStream().

but still, i would very much like to know how it is done by using the java zip-api.

thanks!

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Offline erikd

JGO Ninja


Medals: 16
Projects: 4
Exp: 14 years


Maximumisness


« Reply #3 - Posted 2008-12-10 19:47:01 »

Something like this, I think:

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        ZipFile zip = new ZipFile("images.zip");
        ZipEntry ze = zip.getEntry("myImage.png");
        InputStream zis = zip.getInputStream(ze);
        BufferedImage bi = ImageIO.read(zis);

Offline emzic

Senior Duke





« Reply #4 - Posted 2008-12-10 20:22:09 »

thanks a lot!
that worked!!!

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webstart blendinspect - OpenGL BlendingModes visualization.
Offline oNyx

JGO Coder


Medals: 2


pixels! :x


« Reply #5 - Posted 2008-12-10 22:53:38 »

>My first thought is to rename it to .jar, add it to your classpath[...]

You can also add Zips (and directories) to the cp.

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