Image size to prevent overscanning loss

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screwball2
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Image size to prevent overscanning loss

Post by screwball2 »

After all this time I still cannot get to grips with the 'overscanning' situation.
As I understand, to view my images 'complete', I should first create a background with DTP software 10% greater than the required 1024 x 768 (i.e. 1126 x 840) then overlay my 1024 x 768 image on the background? If I have grasped the situation correctly, I will then see my images entirely without loss after burning and re-playing via DVD/TV ? If this is correct, my current project involves 146 rapid images. Must I prepare each image with the said background before burning with VS11. If so, I will be working on this project until the USA acquires a sane president! I think I am missing something as this is not feasible (the work - not the sane President) and I am sure many others are doing this daily.
Trevor Andrew

Post by Trevor Andrew »

Hi

First of all I assume you are working in widescreen format. (16:9)

The square pixel frame size of 16:9 is 1024 x 576 at least for Pal. Not 1024 x 768, or is this a typo¡¦
(576 multiply 16 divide 9 )

If you are using 768 then you may have problems with a small black border along the sides, I think sides.

Overscan

All/most video played on a TV looses some detail around the edges, the video wraps around the tube sides. (well sort of)

The amount can be up to 15%, 10% is a good guide.
Solution:-
1 / Do not crop in when taking the pictures in the first place.

2 / Add a border 10% around all images. Time consuming, use a batch convert, most image editors support this. What image editor are you using?

3 / Use the overlay track for your images, unfortunately this has limited transitions.
But you can set the position of the first clip (smaller than full frame) plus Style and Duration, then copy the attributes to the rest.

Note:- check the project frame size.
Switch to project playback. Tools-Save current Frame as Image (how big is it?)

Hope this Helps

Edit
Just realised you are in Sussex USA not UK
My sizes refer to Pal Although 1024 x 576 is the correct ratio.
480 x 853 may be suitable for Ntsc.
DVDDoug
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Post by DVDDoug »

I should first create a background with DTP software 10% greater than the required 1024 x 768 (i.e. 1126 x 840) then overlay my 1024 x 768 image on the background?
Yes, that's the general idea. I have a few 4x3 and 16x9 solid color "mats", but I can't remember what resolution I used.

Keep in mind that your photos will have to be converted to 720x480 (for NTSC). And remember that still images use square pixels, and and DVD-video image uses rectangular pixels, so Video Studio will need to re-scale it.
...until the USA acquires a sane president!
Please leave your personal politics out of the discussion. I'd hate to see this technical discussion forum clogged-up with politics. The technical issue usually has a solution, or at least an end... Political discussions can go on forever!
[size=92][i]Head over heels,
No time to think.
It's like the whole world's
Out of... sync.[/i]
- Head Over Heels, The Go-Gos.[/size]
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Post by sjj1805 »

A couple of handy links:
What dimensions etc should I use for still images in Videos?

and also:
Image
from the article overlay tracks
screwball2
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Post by screwball2 »

Many apologies - definitely a typo or obvious lack of concentration!! I use PAL (I am in Sussex UK not US) The image size I use is 768 x 576.
What I am asking is, is there any other method of inserting images 'as-is' into UVS without the pre-requisite of overlaying of the required image onto a background - saving - then importing? If not, I will have to live with it. But perhaps UVS could in future upgrades apply a facility where images are unnaffected by overscan due to automatic re-sizing?? It is so irritating that on my computer all is wonderful, then after burning, I lose so much of a particular image/s. I have to admit, there are some shots that are improved by the end result of 'overscanning' (in the words of Ansel Adams "If it's a bad shot - you weren't close enough"), but conversely, there are many that are ruined by already sufficiently cropped shots. Thankyou again Steve but what you suggest is what I am trying to avoid. I repeat, I have a current project with over 200 images, I really do not want to do each one individually. Batch processing??? Is this possible in Paint Shop Pro 7?
Trevor Andrew

Post by Trevor Andrew »

Hi

Sorry for the confusion on the US scene.

I do not use Paint Shop Pro, but I would have thought that it would be capable of batch convert.

Using VS

You could create your slide show as normal.
Start a new project
Then insert the VSP or completed video file into the overlay track
Resize the video to fit the ¡¥Safe Area¡¦
Render to Video file.

This should create a border
screwball2
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Post by screwball2 »

Thanks Trevor - brilliant idea!!! Constructive and definitely logical. This I will try for def. Thankyou again for your interest and recommendation - starting now.
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