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Re: Converting 300 dpi into 72 dpi with more resolution

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Russell Lasson
Re: Converting 300 dpi into 72 dpi with more resolution
on May 3, 2008 at 4:05:21 am

[Richard Harrington] "You can always change image size... and uncheck the resample box.... but again for video or multimedia.... doesn't matter"

I have a image that was scanned at 300dpi. Because the image was so small, the resolution ended up only being something like 200 pixels x 200 pixels.

So my question is, can I use the extra dots per inch to scale the image without losing quality by setting the image to 72dpi and scaling the image. So would the resulting image would be something like 400x400. If I uncheck the resample box, does this work and not loose quality?

Otherwise, the extra dpi is useless because video is the equivalent of 72 dpi and I still only have an image that is 200x200 pixels. I guess my real question is if I'm scanning an image that is only 1"x1", how to I scan it so I end up with something like 1200x1200 pixels at 72dpi and not 200x200 pixels at 2400dpi? (the math is probably way off, but you get the idea.

I'm trying to write this so it makes sense, but I'm not sure if it's worked yet. Let me know if I'm still not being clear and I'll try to explain it a different way.



Russell Lasson
Kaleidoscope Pictures
Provo, UT

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