I want to scan some of my prints/negativeand transparencies to put on SVCD.
I have the necessary hardware and scanning/photo/video/editing software but
do not know the optimum scanning settings for PAL 4:3 and 16:9 TV for either
svcd ro dvd.

Beemer

"Beemer" wrote in message
news
I want to scan some of my prints/negativeand transparencies to put on
SVCD.
I have the necessary hardware and scanning/photo/video/editing software
but
do not know the optimum scanning settings for PAL 4:3 and 16:9 TV for
either
svcd ro dvd.

If you do not plan to pan and/or zoom, then the best resolution for your
images is 720x576 for both 4:3 and 16:9.

They will look squashed on your VDU, because it uses square pixels (1:1
aspect ratio) but it's the resolution your DVD player will use.

It very much depends on what your authoring software uses though. If it
"assumes" images to have square pixels, you can't use the dimensions I
specified.

"G Hardy" wrote in message
news "Beemer" wrote in message
news
I want to scan some of my prints/negativeand transparencies to put on
SVCD.
I have the necessary hardware and scanning/photo/video/editing software
but
do not know the optimum scanning settings for PAL 4:3 and 16:9 TV for
either
svcd ro dvd.

If you do not plan to pan and/or zoom, then the best resolution for your
images is 720x576 for both 4:3 and 16:9.

They will look squashed on your VDU, because it uses square pixels (1:1
aspect ratio) but it's the resolution your DVD player will use.

It very much depends on what your authoring software uses though. If it
"assumes" images to have square pixels, you can't use the dimensions I
specified.

GHardy,

I'm just starting to use Pinnacle DVD Studio Plus and in my first test I
have tried a mix of stills and also some with pan and zoom. These were
scans done at 800 x 600 at 72ppi or 100ppi originally made as a email
attachments for computer screen viewing. However I see the same photos on
my 28" PAL TV as as very low quality

For the 720 x 576 you mentioned I would like to know

(a) what is the optimum dpi for a still photo on a PAL TV?
(b) do I multiply this by the selected pan & zoom ratio e.g. times 4?

Beemer

"Beemer" wrote in message
. uk...

"G Hardy" wrote in message
news "Beemer" wrote in message
news
I want to scan some of my prints/negativeand transparencies to put on
SVCD.
I have the necessary hardware and scanning/photo/video/editing software
but
do not know the optimum scanning settings for PAL 4:3 and 16:9 TV for
either
svcd ro dvd.

If you do not plan to pan and/or zoom, then the best resolution for your
images is 720x576 for both 4:3 and 16:9.

They will look squashed on your VDU, because it uses square pixels (1:1
aspect ratio) but it's the resolution your DVD player will use.

It very much depends on what your authoring software uses though. If it
"assumes" images to have square pixels, you can't use the dimensions I
specified.

GHardy,

I'm just starting to use Pinnacle DVD Studio Plus and in my first test I
have tried a mix of stills and also some with pan and zoom. These were
scans done at 800 x 600 at 72ppi or 100ppi originally made as a email
attachments for computer screen viewing. However I see the same photos on
my 28" PAL TV as as very low quality

For the 720 x 576 you mentioned I would like to know

(a) what is the optimum dpi for a still photo on a PAL TV?

It does not have one. dpi as you called it is PPI and its merley a
convertion factor for print size for sending to a printer.
the resulution on screen will be the image dimenstion x the screen size
example my 172 monitor is aproxamatly 12" in width and I use a display res
of 1024 pixels that works out at about 85 pixels per inch.
What you will notice in studio is that a 720 x 540 pixel image is streched
upwards in the preview so that when its renderd and displayed on a TV which
streches it width wise it again looks normal. This is also the size the
studio title slides come in

(b) do I multiply this by the selected pan & zoom ratio e.g. times 4?

Even if you load a 3000 x 2400 pixel image in to studio it will reduse it to
fit the standerd DVD size of 720 x 540or a 1/4 of that if its VCD.

Hope thats of some help

--
Trev.
West Riding of Yorkshire
The one with the white rose
"I've done the calculation and your chances of winning the
lottery are identical whether you play or not."

For the 720 x 576 you mentioned I would like to know

(a) what is the optimum dpi for a still photo on a PAL TV?

There is no such thing as DPI for a TV. A 28" TV has the same number of dots
as a 14" TV.


(b) do I multiply this by the selected pan & zoom ratio e.g. times 4?

Yes.

If you have an image that you will zoom, you set its dimensions so that at
maximum zoom you are still seeing individual image pixels per TV pixel. e.g.
If you want to zoom in to the centre 50% width of an image, don't start with
720x576 and zoom in to 360x288. Instead, start with 1440x1152 and zoom in to
720x576.

In message , Trev
writes
Even if you load a 3000 x 2400 pixel image in to studio it will reduse
it to fit the standerd DVD size of 720 x 540or a 1/4 of that if its
VCD.

To put it a little more simply, the scanning resolution is not relevant,
providing that the image has the correct ratio in pixels (4:3 or 16:9 as
appropriate). Studio 8/9 (as well as most other video software)
automatically scales to fit in the frame.

Also, if the ratio is not correct, then most video software will
introduce black banding at the sides/top and bottom (as appropriate).
--
Tony Morgan
http://www.camcord.info

(a) what is the optimum dpi for a still photo on a PAL TV?


Divide 576 by the height (in inches) of the wanted image.

e.g.

576/1.5" = 384 dpi
576/12" = 48 dpi

Best to round up - and allow for cropping/zooming

jim