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Alrighty. This isn't GIMP-specific, but it is an image issue. I was making a wallpaper from today's APoD. The image is at: http://antwrp.gsfc.nasa.gov/apod/ima.../m42_hst_f.jpg Anyway, the filesize is 184 KB, and ...
  1. 01-19-2006 #1
    Cabhan
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    Large Filesizes

    Alrighty. This isn't GIMP-specific, but it is an image issue.

    I was making a wallpaper from today's APoD. The image is at:

    http://antwrp.gsfc.nasa.gov/apod/ima.../m42_hst_f.jpg

    Anyway, the filesize is 184 KB, and in JPEG.

    So I used the GIMP to scale it back to 1280x1024, and I resaved it as a PNG. And its new filesize is 1.3 MB. Which is huge.


    I'm curious if anyone has any ideas as to why this is, or ways to fix it.

    Gracie.
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  2. 01-19-2006 #2
    Darl
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    It is because .png is not equal to .jpg. One of the best formats for compression vs quality is .jpg, however, I believe, and I have not tested this, .png compression is better at smaller file sizes. As well, .jpg does not support translucency or transparency as .png does.
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  3. 01-19-2006 #3
    Cabhan
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    That did it!

    Thanks.
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