PDA

View Full Version : Post Processing Image Sizing


rwest
3rd of May 2005 (Tue), 21:07
I am a novice with PS and I hope someone can help me with this
question.

My question: How do I take a image, crop it down to 11x14 and still keep it at 300dpi? Is this possible? I am using a 10D shooting in RAW mode, then post processing with C1 and this out-puts to a tif. file then I crop and size in PS and convert to jpg. When I do this, the dpi usually lands somewhere around 172.???.

Also, under the image size menu, I am setting the pixel dimensions to
1100 and 1400. Should I set the document size to 11 and 14 instead?

tim
3rd of May 2005 (Tue), 21:41
Ignore the DPI value, it's irrelevant - look at the number of pixels instead. Software/printers will interpolate if there's not enough data, and if it's more than 300dpi it'll use everything it can, though over 300dpi is probably not going to give you much more quality.

If you have some special reason to want it at 11*14 at 300dpi, do something like this in PS CS (all from memory, not near PS right now):
1) Crop the image as you like.
2) Image | Images size. Make sure the resample checkbox is selected. Enter 3300 * 4200 as the pixel count (that's 11*300 and 14*300).
3) Image | Images size. Turn off the lower resample checkbox, and enter the dimensions you want in the upper edit boxes.

There might be a faster way to do it, but that's how i'd do it.

pdrow
4th of May 2005 (Wed), 07:03
In the crop tool bar, enter your size and the ppi and it will crop to that.
pam

tim
4th of May 2005 (Wed), 15:16
Nice tip pdrow.