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Re: Change the default dpi [message #44171 is a reply to message #44101]

Mon, 23 May 2005 15:27

Rick Towler
Messages: 821
Registered: August 1998

Senior Member

> Thanks, Rick. Paint Shop could be used to check the dpi of any image.
> The problem is the images I'm preparing will be published in a journal,
> and it has strick length limit, so your suggestion to export a larger
> image won't work in my case.

Sure it will.

O.K. I was wrong about the JPEG header business (I just played around
with photoshop and JPEGs can store dpi info), but you still can export
to a larger size then load it into Paint Shop and "fix" it.

Say you want a 2" x 2" image @ 300dpi. Export a 600 x 600 image from
ENVI. Load it into your paint program and change the DPI to 300 while
at the same time changing the print size to 2" x 2" (this preserves the
pixel dimensions so no resampling occurs). Save it.

Now you have a 2" x 2" JPEG image at 300dpi.

-Rick

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[Message index]

		Change the default dpi By: envi35@yahoo.ca on Fri, 20 May 2005 14:55
		Re: Change the default dpi By: James Kuyper on Tue, 24 May 2005 08:34
		Re: Change the default dpi By: envi35@yahoo.ca on Mon, 23 May 2005 21:17
		Re: Change the default dpi By: Rick Towler on Mon, 23 May 2005 15:27
		Re: Change the default dpi By: envi35@yahoo.ca on Mon, 23 May 2005 14:06
		Re: Change the default dpi By: Rick Towler on Mon, 23 May 2005 10:37

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