Certain image resolution for digital pictures that will be played on a projected slideshow?

Question

I'm making a picture slideshow and am having to scan old pictures in and turn them into digial images. They're saving with a resolution of roughly 500 x 700. This slideshow will be projected rather large and I'm worried that the images won't project nicely. Will this matter or is the image clarity going to be based on the actual projector itself? I hope this makes sense... Please help!

Answer 1

Obviously the larger the resolution the better, however it wont do any good to exceed the resolution of the projector because then the images will just be scaled down.

Chances are, the projector's resolution is 1024x768.  If this is the case, 500x700 will look fine, but you might want to try upping the resolution just a bit if you wish (but never exceed 1024 for the width or 768 for the height).

If you find out that the projector is higher resolution (some are now 1280x720 for 720p HD stuff, or 1280x1024 for newer computer projectors), then adjust accordingly.

That being said, do NOT make the scan resolution super big just for the heck of it.  If the image file sizes are too big, it will bog the slideshow down, and it may even cause the transitions or music to skip if you are playing the slideshow "live" (that is, you have not rendered it into a video file or DVD)

Answer 2

its based on the projector and the image resolution. higher resolution means more clarity and better details but if you projector is a poor quality projector it wont matter much. your images should be fine.