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Author Topic: watermarking reduces image size?  (Read 1535 times)

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giorgio79

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watermarking reduces image size?
« on: March 02, 2007, 12:01:48 pm »

In this thread

http://forum.coppermine-gallery.net/index.php?topic=24556.msg112995#msg112995

 someone mentioned that

"If I upload a 800x600 image with the size of 500kb, it will not resize and take a lot of space on the server. I can use watermarking to avoid this issue, but this requires watermarking and I'm not sure that I want to do that."

Is this true?

Can I avoid large file sizes by watermarking pics?

Please let me know

Thank you,
Gyuri
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Joachim Müller

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Re: watermarking reduces image size?
« Reply #1 on: March 02, 2007, 02:06:23 pm »

The answer I posted on the thread you refer to is still valid:
I agree with ecto: this is not a matter of compression, but a question what algorhythm is being used to resize the images. Both GD and ImageMagick can't compete with good desktop apps when it comes to resizing, so I suggest you resize on your client (using Photoshop or similar). AFter all, GD and IM are server apps that are meant to do a quick-and-dirty job, without using too much memory, cpu load etc.
Bottom line: no, on-the-server watermarking will not improve image sizes.
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