How to show a big size jpg into screen ( auto resize)

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Boki - 27 Dec 2005 13:24 GMT

Hi All,

I have some jpg files that is 1.3Mega pixel, it is impossible to show a full
image in to screen ( phone )

could you please advice which function ( library - free ) I can use ?

Thank you very much!

Best regards,
Boki.

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Roedy Green - 27 Dec 2005 15:14 GMT

>could you please advice which function ( library - free ) I can use ?

you can use drawImage to draw part of the image. to speed
transmission, you will want to split the image into pieces with some
sort of image editor for downloading. Unfortunately when you do that
you get strange artifacts with JPEG since each piece will be
compressed separately.

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http://mindprod.com Java custom programming, consulting and coaching.

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Andrew Thompson - 27 Dec 2005 22:29 GMT

> I have some jpg files that is 1.3Mega pixel, it is impossible to show a full
> image in to screen ( phone )

I did not think most phones had enough memory to display a 1.3 Meg JPEG.
(Note the JPEG's becomes bigger between disk and RAM)

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Andrew Thompson
physci, javasaver, 1point1c, lensescapes - athompson.info/andrew

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bokiteam@ms21.hinet.net - 28 Dec 2005 00:45 GMT

I have used some Sony Ericsson's mobile..

They can do that but user must press zoom in/out to see all of them...

K750i/W800i they have 2M pixel camera.

If I missed something, please adivce : )

Best regards,
Boki.

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Alun Harford - 28 Dec 2005 11:30 GMT

>I have used some Sony Ericsson's mobile..
>
[quoted text clipped - 3 lines]
>
> If I missed something, please adivce : )

I thought the JPEG standard was cleverly designed to make this possible -
you can do some clever maths to avoid using a lot of memory during the
resize. I don't know the specifics though.

Alun Harford

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bokiteam@ms21.hinet.net - 28 Dec 2005 13:53 GMT

Thanks for information : D

Best regards,
Boki.

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How to show a big size jpg into screen ( auto resize)

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