just wondering...

[EiRiK]

lets say my original picture is 3072x2048 @ 180dpi,
and i use the crop tool in PS to select the whole picture (since both are 3x2) using 4x6 @ 300dpi, the resultant picture becomes 1800x1200 @ 300dpi.

is this considered a drop in picture quality?

[hyperFocal]

What's the original size of the pic at 180dpi? You cropped it to 6 by 4 inches?

[EiRiK]

original size is 3072x2048 @ 180dpi.
no cropping done, just used the crop tool (6x4inch)to highlight the whole picture, after pressing Enter, the new resolution becomes 1800x1200 @ 300dpi instead of the original 180dpi.

[catchlights]

Originally Posted by EiRiK original size is 3072x2048 @ 180dpi. no cropping done, just used the crop tool (6x4inch)to highlight the whole picture, after pressing Enter, the new resolution becomes 1800x1200 @ 300dpi instead of the original 180dpi.

Why waste time to do this extra steps?
If you need to print 4R size, best send a file has pixel count more than 1800×1200 and have a ratio of 2:3, unless you don't want someone to print bigger than 4R size with this file.

[EiRiK]

maybe i shouldnt quote any examples...

just wondering(as my thread title),
is an increase in dpi but drop in resolution at the same picture ratio considered a drop in picture quality?

[catchlights]

Originally Posted by EiRiK maybe i shouldnt quote any examples... just wondering(as my thread title), is an increase in dpi but drop in resolution at the same picture ratio considered a drop in picture quality?

If you only print in 4R, not very noticeable in degrade of quality.

[EiRiK]

Originally Posted by catchlights If you only print in 4R, not very noticeable in degrade of quality.

so that means its still considered a drop in quality eventhough the dpi is increased.
ic thanks.

[catchlights]

Originally Posted by EiRiK so that means its still considered a drop in quality eventhough the dpi is increased. ic thanks.

You did not increased the dpi this way, the original file is 3072×2048, if you print a 4R from this, is actually 512 pixel per inch.

[EiRiK]

got it
thx