Re: Scanning Pictures, Digitial Cameras and Resolution

Besides the DPI selection in scanner software, there usually is a file type
and possibly a compression\quality selection. Remember that a 5x7 picture
and slide scanned at 600DPI would produce different size files, since the
originals are a different size. (Assuming both are properly cropped.) Yet, a
scanned image from either might print the same physical size if a program or
printer driver scales the image (manually or automatically).
An image file may have a DPI and or an image size setting stored. A photo
editing, display, or printing utility may or may not ignore this
information.
Scanner Resolution- 600 DPI is adequate for most images. In some cases,
300DPI may be adequate.
Due to the small size, and the fact that a slide is generally enlarged for
printing and viewing, 1200 DPI or more may be preferred.

You can always reduce the resolution after an image is scanned. It's
impossible to increse it. Programs can increase the size of the image, but
not the true resolution.
Another thing to remember is that Display pixels, PrinterDPI, and scanner
DPI are three different things.



"Yvonne" <Yvonne@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:E3C7F7F5-B491-4557-B9BC-1782038E9D61@xxxxxxxxxxxxxxxx
> Hi all,
>
> I have been slowly going through my family photos and scanning them into
> digital format for sending to family and preservation of the photo.
>
> I had been told that I should be scanning at high resolution, so I have
been
> scanning at 600 dpi. Oddly enough, the file size was small. I used
another
> computer and [older] program/scanner, scanning my photo at 600 dpi and the
> file size was large. Can anyone explain this? Has any of the quality
been
> lost? Is it just the program that is making the difference and I'm not to
> worry about it?
>
> The other part of this is that I was on a digital photography course
> recently and was told that I should never scan photos because I "loose
> depth". The solution I was told to use was to use a digital camera and
take
> a picture of a picture. Sure, that is wonderful - - if you have the
proper
> lighting, surroundings and lots of time for practice!!
>
> Now it is here where I am lost ............. I want to scan because I
don't
> want to loose my photos and I want to share my photos but when it comes to
> this depth thing ...... do I really have worry about it????
>
> Any and all information regarding scanning, file sizes, resolution and
other
> related info on this item duly appreciated.


.

Relevant Pages
Loading