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Resolution for DVD storage and display

Forum Digital Camera : Digital SLR - Resolution for DVD storage and display

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Archived from groups: rec.photo.digital.slr-systems (More info?)

Help required please,

Basicaly, is there a batch process within Photoshop or similar to enable me
to reduce the resolution of my work (multiple shots)down to a size
reasonable for DVD/TV slideshow viewing that will render the files almost
pointless for photographic reproduction so as to avoid/reduce my work being
printed off by others.
I have around 230 files that I need to reduce from 4-5mb to about 400-500kb
but I would like to do them as a batch instead of one at a time.

TIA

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Archived from groups: rec.photo.digital.slr-systems (More info?)

Irfan has pretty nice batch capabilites that might do what you want. Play
with the Advanced Settings.

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Reply to Anonymous

Archived from groups: rec.photo.digital.slr-systems (More info?)

From: "Nik Beard" <nick@superchop.demon.co.uk>

| Help required please,
|
| Basicaly, is there a batch process within Photoshop or similar to enable me
| to reduce the resolution of my work (multiple shots)down to a size
| reasonable for DVD/TV slideshow viewing that will render the files almost
| pointless for photographic reproduction so as to avoid/reduce my work being
| printed off by others.
| I have around 230 files that I need to reduce from 4-5mb to about 400-500kb
| but I would like to do them as a batch instead of one at a time.
|
| TIA
|

PhotoShop Elements does this quite easily. You tell it the folder of the source files, the
resolution of the destination files and the location of the destination folder.

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http://www.ik-cs.com/got-a-virus.htm

Reply to Anonymous

Archived from groups: rec.photo.digital.slr-systems (More info?)

In article <d8sj8q$qsg$1$8300dec7@news.demon.co.uk>,
Nik Beard <nick@superchop.demon.co.uk> wrote:
>Help required please,
>
>Basicaly, is there a batch process within Photoshop or similar to enable me
>to reduce the resolution of my work (multiple shots)down to a size
>reasonable for DVD/TV slideshow viewing that will render the files almost
>pointless for photographic reproduction so as to avoid/reduce my work being
>printed off by others.
>I have around 230 files that I need to reduce from 4-5mb to about 400-500kb
>but I would like to do them as a batch instead of one at a time.

Hmm ... your headers show that you are on Windows.

If you get a copy of the jpeg libraries (either the source, and
compile it yourself, or install a pre-compiled set from somewhere, you
should have among the things a pair of programs:

djpeg

and

cjpeg

You can use them together to reduce the size of an image (by an integer
power of two). An example would be:

djpeg -scale 1/4 < large-filename | cjpeg > small-filename

What I use is a script called "make-smaller" (on my unix systems) which
is as follows:

======================================================================
#!/usr/local/bin/zsh
#
# Shrink images by a factor specified on the command line.
# If no factor is specified, use a default 2:1 reduction.
#
# DoN. Wed Jul 12 20:09:37 EDT 2000
#
# @(#) /usr/local/scripts/make-smaller
#
#
# Get scale factor or default to 2
#
FACTOR=${1:-2}
#
# Create a subdirectory for the reduced images, and make the
# permissions right to allow access
#
mkdir smaller
chmod 755 smaller
#
# Loop through all .jpg image files in the current directory and
# Put a smaller copy in the "smaller" subdirectory
#
# Skip any which already have an image of the same name in the
# "smaller" directory
#
foreach i ( *.jpg )
if [ ! -f smaller/$i ]
then
djpeg -scale 1/$FACTOR < $i | cjpeg > smaller/$i
echo $i done
else
echo $i already present -- skipped
fi
end
#
# Change the permissions on the individual files so they can be accessed
#
chmod 644 smaller/*.jpg
======================================================================

You should be able to do something like this using the MS-DOS
batch file. Some parts of this probably are not needed for your
purposes. This was written as part of my automatic generation of web
pages, with a similar script creating a thumbnails directory with even
smaller images.

Perhaps someone familiar with PhotoShop will produce a way to
do it in there.

Enjoy,
DoN.
--
Email: <dnichols@d-and-d.com> | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

Reply to Anonymous

Archived from groups: rec.photo.digital.slr-systems (More info?)

Nik Beard wrote:

> Help required please,
>
> Basicaly, is there a batch process within Photoshop or similar to enable me
> to reduce the resolution of my work (multiple shots)down to a size
> reasonable for DVD/TV slideshow viewing that will render the files almost
> pointless for photographic reproduction so as to avoid/reduce my work being
> printed off by others.
> I have around 230 files that I need to reduce from 4-5mb to about 400-500kb
> but I would like to do them as a batch instead of one at a time.

Yes. In photoshop Elements (2 / 3) you can setup a seperate directory
to receive the 'reduced' size (and quality, if you like) versions, and
rename them as necessary) and a couple other nifties.

Do " File | Process Multiple Files " and fill in the Guzintas and
Guzoutas and you're all set.

I suggest you copy a half dozen images to a new directory and play with
it a bit to make sure you have it set up right before launching a 200
files job ... there is no "STOP" button (AFAIK).

Cheers,
Alan

--
-- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm
-- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm
-- [SI] gallery & rulz: http://www.pbase.com/shootin
-- e-meil: Remove FreeLunch.

Reply to Anonymous

Archived from groups: rec.photo.digital.slr-systems (More info?)

DoN. Nichols wrote:

> Perhaps someone familiar with PhotoShop will produce a way to
> do it in there.

... hopefully!!! and yes, there is a batch method in PS.

Cheers,
Alan

--
-- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm
-- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm
-- [SI] gallery & rulz: http://www.pbase.com/shootin
-- e-meil: Remove FreeLunch.

Reply to Anonymous

Archived from groups: rec.photo.digital.slr-systems (More info?)

On Thu, 16 Jun 2005 20:18:30 +0100, "Nik Beard"
<nick@superchop.demon.co.uk> wrote:

>Help required please,
>
>Basicaly, is there a batch process within Photoshop or similar to enable me
>to reduce the resolution of my work (multiple shots)down to a size
>reasonable for DVD/TV slideshow viewing that will render the files almost
>pointless for photographic reproduction so as to avoid/reduce my work being
>printed off by others.
>I have around 230 files that I need to reduce from 4-5mb to about 400-500kb
>but I would like to do them as a batch instead of one at a time.
>
>TIA
>
Hi...in ps7 create an ACTION.atn that does what you want; resets size
and dpi, CC, lab sharpens, maybe watermark or apply sig/copyr,
etc...

Then on your hard drive create a source dir and an output directory.

Then in ps7 under File>Automate>Batch, on the form - set your
preferences; eg. choose your action; specify source folder with
options, etc. Use the help file for these particulars.

Populate the source directory and then your ready to run your batch...
via file>automate>batch | OK.

go do something and come back later and harvest your output directory.
Maybe you could burn as you go...dunnoh.

cheers
Ken

Reply to Anonymous

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