Comments

jetdv wrote on 8/17/2007, 8:09 AM
Depends on whether or not (or how far) you zoom in on the image!
richard-courtney wrote on 8/17/2007, 8:42 AM
While jetdv's answer may seem too simple, I agree.

If you are zooming in, the higher the resolution the better.
Vegas kind of does not look at it as dots per inch as far as I can tell,
rather as number of elements tall and wide. Scanning or importing
stills from higher count megapixel devices give you getter results.
Spot|DSE wrote on 8/17/2007, 9:23 AM
DPI has no value in video. It's a print value.
Resolution is the most important aspect. If you're scanning, you want the image to not be larger than 2K horizontally or vertically.
If the original image is very small, you may struggle with quality if you're zooming in deeply using the pan/crop tool.
rmack350 wrote on 8/17/2007, 9:54 AM
Short answer is No. Everyone else can try to explain why.

Rob Mack
Coursedesign wrote on 8/17/2007, 11:45 AM
Like Spot says, it's a print value.

Let's say you create a square image on your screen that is 100x100 pixels.

Now you want to print that out. The program printing it out needs to know how big you want it printed, without scaling. Since we care about the print quality, we quickly find that if we allocate less than about 200 pixels per inch on a desktop printer, the quality will start dropping off. So if we specify to print at 200dpi, that gives us a square that is 0.5" across.

Now computer screens don't have this level of resolution yet. Traditionally, they used to be estimated at 72 dpi*, so we refer to 72 dpi as "screen resolution."

An image that is set at 72 dpi will print out on paper very pixelated, because the resolution is insufficient for the size we printed it at.

So if we change the resolution setting of the image to say 216dpi (3x higher), we find that the print size is now 1/3rd of what it was (horizontally and vertically).

In video however, there is no printing involved.

We are only dealing with pixels, and regardless of whether your 720x486 image say is set to 72 dpi, 300 dpi, or 5000 dpi, nothing changes on the screen, because the resolution number is just a note to self to remember to print the image at a certain resolution.


(*today 100dpi is a better number for high end screens)