Berkeley CSUA MOTD:Entry 53939
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2025/05/25 [General] UID:1000 Activity:popular
5/25    

2010/8/29-9/30 [Consumer/Camera, Computer/SW/Languages] UID:53939 Activity:nil
8/28    Hi, anybody printed a photo image to a big plotter?  Something like
        36"x36"?  I'm wondering how many megapixels the image need to
        have in order for the print to "look good".  There is a rule of
        thumb?  Like 6 megapixel is good for X size print.  10 megapixel
        is good for Y size print.  Thanks.
        \_ You don't need that many more megapixels for much bigger prints,
           because people tend to view bigger prints from farther away.
           \_ exactly. Pixel peepers are stupid. Anything beyond 20MP,
              is mostly a waste anyways.
        \_ Try thinking of it in terms of dpi on the final print.  Is 150dpi
           good enough?  If so, then you need a 29 megapixel image for 36"x36"
           (36 * 150)^2 = 29,160,000.  The resolution of the printer can also
           limit the quality of the printed image, so make sure the plotter
           can handle your target resolution.  If you're doing this with a
           plotter, presumably you're not trying to produce a photorealistic
           image anyway.
2025/05/25 [General] UID:1000 Activity:popular
5/25    

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