[blipvert]

I am preparing my images to submit them to an art gallery in digital format.

They asked for the digital images to be put on a disc at 300dpi and 4x6 inches.

It looks like the pix come off my Olympus camera 1600x2400 and only 72dpi - is this possible the dpi is so low? Is there anyway for me to make the pix 300 dpi or do I need to get a better camera?

Also - when I make them 300dpi in Photoshop and 4x6 inches, they are HUGE and you can't see the whole image when you open them - any idea what they would be viewing them with other than a monitor on a computer if they want me to send them that HUGE?

[balistic]

A digital photo doesn't have a DPI.

DPI depends entirely on how large something is printed. If you printed a 1600x2400 image at 16x24 inches, the print would be 100 DPI. 8x12" would be 200 DPI. 300 DPI works out to about 5.34x7.5".

Take the width and height of your image in pixels and divide by your desired output DPI to determine how large you should print.
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brian.prince|light.comp.paint

[Jin]

Hi,

I'm assuming when you opened your photo in Photoshop the first time, it was set to 72 PPI (not DPI which is a term related to printing, not digital images).

In Photoshop 7 (which I don't use as much as Corel Painter):

I just did a couple of tests and this is what I found (more experienced Photoshop users may give you better info or at least tell you which of the two methods below will give you the best results for the purpose described in your post).

If you use Image > Image Size, and

• Uncheck the Resample Image box.
  
• Below Document Size, change Width to 4 inches. Height will be automatically changed to 6 inches and Resolution automatically changed to 400 PPI. The Width and Height in pixels will remain 1600 x 2400 pixels.
  

You'll have a 4 x 6 inch 400 PPI image.

OR.....

To get the 4 x 6 inch image to 300 PPI (if 300 PPI instead of 400 PPI is really necessary), instead use Image > Image Size, and:

• Leave the Resample Image box checked and accept the default Bicubic option.
  
• Below Document Size, change Width to 4 inches. Height will be automatically changed to 6 inches.
  
• Change Resolution to 300 PPI. The Width and Height in pixels will be changed to 1200 x 1800 pixels.
  

You'll have a 4 x 6 inch 300 PPI image.


Jinny Brown
Corel Painter Instructor, TutorAlley Forums

Corel Painter Focused Sites:
http://www.pixelalley.com
http://www.tutoralley.com
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