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Why When I Zoom In Are My Pictures All Pixelated?

Nov 1, 2010, 01:57
Post: #1
Why When I Zoom In Are My Pictures All Pixelated?
I watch all of these people on youtube do these tutorials, but when they zoom in, it doesn't pixelate their picture.... WHY DOES IT DO THAT TO ME?! Angry
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Nov 1, 2010, 02:05
Post: #2
RE: Why When I Zoom In Are My Pictures All Pixelated?
Because these people start with big pictures, so that when they zoom in they go from 25% to 50% to 100%, while if you start from a picture the size of your screen, you go from 100% to 200% to 400%.

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Aug 12, 2011, 12:23 (This post was last modified: Aug 12, 2011 12:24 by gramp.)
Post: #3
RE: Why When I Zoom In Are My Pictures All Pixelated?
Another way to think about it.

Remember back to the very early digital cameras that had memory for like, what?, 10 x 10 pixels = 100 pixels total.

Fast-forward (remember video tape?) to future cameras that will have oh, say?, 1 bluezillion x 1 bluezillion pixels (= a way huge lot more pixels than the early one).

Take two pictures of the same subject, say, a candid of a horsefly sitting on a barn a mile away.

"Pixels" are just "little square or rectangular pieces of the image." They are the result of "slicing" the image vertically and horizontally and declaring that "everything in one square has to be the same color." With bigger squares you can't represent as fine a detail as with smaller squares.

If you're far enough away, both pictures look the same, but if you zoom in (GIMP's your friend!), you'll see start seeing the individual pixels sooner in the pic taken with the antique digicam because they are bigger. You won't even be able to make out lines in the barn siding before you start seeing pixels. But with the super-duper high-resolution ultra-moderno camera of the future, you'll be able to see worry lines in the horsefly's face long before you see a pixel representing those lines.

"Start with the highest-resolution [most pixels] picture you can afford."

Cheers,
gramp
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