Re: Changing Image Resolution

An image doesn't have a "resolution". Pixels are pixels. I get into this argument all the time with graphic designers, and even magazines that want me to send "a 300-dpi GIF or JPG". Gaaaah!

Perhaps what you want is a scaling operation. Try the scale method.

-- Randal L. Schwartz, Perl hacker

Comment on Re: Changing Image Resolution

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Re: Re: Changing Image Resolution by notsoevil (Pilgrim) on Apr 28, 2001 at 06:57 UTC
Okay, I just created two images, with supposed 'resolutions' of 72 and the other of 300. Same dimensions, different resolutions, and same file size. I most certainly should have done so earlier. I work for a 'traditional' advertisement agency. Its all about 'CMYK', 'resolution' and 'bleed lines'. The issue of resolution was brought up by my employer, and my understanding of screen 'resolution' versus print resolution were obviously not up to par. I have used `scale`, and it works quite nicely. Thanks for the clarification. -- notsoevil -- Jeremiah 49:32 - And their camels shall be a booty. . .	[reply]

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Re: Re: Changing Image Resolution
by notsoevil (Pilgrim) on Apr 28, 2001 at 06:57 UTC

I work for a 'traditional' advertisement agency. Its all about 'CMYK', 'resolution' and 'bleed lines'. The issue of resolution was brought up by my employer, and my understanding of screen 'resolution' versus print resolution were obviously not up to par.

I have used scale, and it works quite nicely. Thanks for the clarification.

--
notsoevil
--
Jeremiah 49:32 - And their camels shall be a booty. . .

[reply]