Originally posted by jwagley:
I'm kinda confused when it comes to resolution. If you take a picture at a high setting and then resize it to 640x480 for this challange, doesn't that degrade the quality? I don't understand how this works and thought this would be a good place to find an answer.........thanks. |
Yes it does, but the amount of degradation is minimal (usually) when sampling down (to a smaller size) than when trying to enlarge. Usually judicious application of the Unsharp Mask Filter (or equivalent) will substantially restore any lost detail in the reduced image.
Besides re-sizing, some people crop a smaller number of pixels out of a larger image, so the resampling may not be so extreme as you might think.
But I always shoot at the highest resolution I have in case I ever want to print it. If I know for sure the images will never be printed I sometimes shoot at lo-res when I need a ton of images to fit on the card.
Also, check out the new tutorial on Creating Printable Images by John Setzler, as it discusses the resolution issue from the other direction.
Message edited by author 2002-12-17 18:15:34. |
