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Thread: Converting Large TIF images to JPG

  1. #1

    Default Converting Large TIF images to JPG

    Hello,

    I've got some very large TIF images produced from photogrammetry ranging from 200mb to up over 2gb, to make them manageable and easy to distribute i generally convert them to .jpg

    images up to 300-400 mb work fine, but when I'm converting the large images (currently trying a 800mb tif) IrfanView crashes immediately regardless of the quality chosen

    the images open fine in the viewer, but just crash when i attempt to save

    Windows 10, using v4.51 64 bit, 32gb ram

    any ideas?

    cheers

  2. #2
    Multiple User Jacal's Avatar
    Join Date
    Jun 2013
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    308
    Version
    IrfanView 4.51
    OS
    64-bit Win 10
    CPU Cores
    4

    Default

    With only 16 GB of ram, I can convert 8- and 16-bit tiffs up to 1,1 GB in size (I had to create one that big, actually), IV is using less than 2 GB of ram in the process.

  3. #3
    Moderator Enterprise User Bhikkhu Pesala's Avatar
    Join Date
    May 2007
    Location
    East London
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    5,793
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    IrfanView 4.51
    OS
    64-bit Win 10
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    1

    Default

    You may be running into the maximum dimensions allowed for JPG images.

    Click image for larger version. 

Name:	JPG Maximum Dimensions.png 
Views:	16 
Size:	3.1 KB 
ID:	5426

    Try using PNG instead. If you can reduce to 256 colours the file size can be reduced significantly.

    Click image for larger version. 

Name:	PNG Compression.png 
Views:	12 
Size:	2.9 KB 
ID:	5427
    Last edited by Bhikkhu Pesala; 15.11.2018 at 09:12 AM.

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