Re: Scanning Documents and Photos - personal preferences #general


Dahn Cukier
 

Bob, Eva, Ari

I keep the originals that I have been given or are mine.
I return borrowed photos. Borrowed photos are not sually removed
from albums, especially old ones. I have begun testing taking
photos with a smartphone, but I want to buy/build a stand
for the phone.

Bob.
Why not TIF. My first scanner was an HP5300C model C7690A. It was
purchased before 1994 (It was brought from the US before my last
visit in 1994), at that time TIF was not popular.

Eva.
I work on copies of the original scans. If you are not computer literate,
ask someone to setup a folder/directory to hold originals and work
only on copies.

Backup both the originals and any work you have done, such as
crop,ping. I crop for including a person's face in Brother's Keeper
documents. If the original scan was received and I did not have
the original, a person can be identified by body build, haircut, and
who else in the photo, but the face is a blur.

BACKUP. Be sure to backup and disconnect the backup device when not
in use. A disconnected device cannot be encrypted with ransomeware.

Dani

When you start to read readin,
how do you know the fellow that
wrote the readin,
wrote the readin right?

Festus Hagen
Long Branch Saloon
Dodge City, Kansas
(Gunsmoke)


On Friday, April 3, 2020, 05:55:46 PM GMT+3, Bob Friedman <rjf@...> wrote:


Dahn,

Why scan to jpg or png, both lossy formats, rather than tif, which is lossless? Every edit, including cropping, degrades the quality of jpg and png images, defeating the purpose of scanning at the highest resolution. 

I also use Irfanview and it works just as well for tif images as it does for jpgs.  Generally speaking, I scan at 300 dpi and faces usually come out fine in crops and enlargements.  If necessary, I re-scan at 400 or 600 dpi.  Eventually I find there is a point of diminishing returns, where higher resolutions create images that are marginally better and don't justify the ever larger file sizes.
--
Bob Friedman
Brooklyn, NY

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