Re: Converting JPEG Image Greater Than 72dpi To 72dpi
Re: Converting JPEG Image Greater Than 72dpi To 72dpi
- Subject: Re: Converting JPEG Image Greater Than 72dpi To 72dpi
- From: glenn andreas <email@hidden>
- Date: Thu, 25 Aug 2005 09:21:00 -0500
On Aug 24, 2005, at 5:24 PM, Ian was here wrote:
What I
really need is a way to take a high resolution image
and convert it into 72dpi while maintaining the same
size and without losing any quality.
Do I ask too much? Thanks.
Yes, you do.
If you convert from a higher resolution to a lower resolution you
loose data.
Consider a 10" x 10" image at 300 dpi - it contains 3000 x 3000
pixels. Coverted to 72 dpi results in an image 720 x 720 pixels.
You now have fewer pixels and as a result you will have a loss of
quality/data (for example, a 1 pixel wide line in the original image
either becomes a 0 pixel wide line which vanishes, or blurs with the
adjacent pixels, giving you a blur instead of a line).
Glenn Andreas email@hidden
<http://www.gandreas.com/> wicked fun!
Widgetarium | the quickest path to widgets
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