Thread: Wikipedia?
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Old 03-09-2011, 01:12 PM   #9
carlb
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Quote:
Originally Posted by nrapallo View Post
I reduced any image greater than 200x??? so that the short side was 200 using IrfanView and didn't enlarge smaller pictures nor used any dithering. For .gifs and .pngs, I just reduced the colours to 16 (4 bit) while with .jpgs I had better luck reducing the Quality to 70 than changing those images to .png or .gif! Any images less than 200x???, I didn't change the size, but did change the colours as above.
IrfanView?

For such a large quantity of images, it may be easier to use http://www.imagemagick.org/script/convert.php as it can be run from a batch file to -resize or change colour -depth of large numbers of images at once.

Wikipedia's server-side MediaWiki software invokes ImageMagick's free convert utility as one commonly-used means to generate thumbnails from uploaded photos for use on content pages; it won't convert .SVG to other formats but will do just about anything else.
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