I took a perfect photograph that looks fine on my camera, so printed out, but pixelation occurs when I enlarge a photograph beyond its settings. my camera were set to take a photo the size of 6 inches by 4 inches, I saw pixelation when I attempted to turn into into an 18-inch by 24-inch poster. can I edit pixelated pictures to remove errant pixels and smooth out edges when going up to a slightly larger size? please help me Asked Dec, 14 2010
Here is the answeer: 1.•Open Photoshop, click "File," click "Open," and browse to the photo with the pixelation to edit. Double-click the file name and the photo opens in the Photoshop workspace.
•2 Click the "Magnifier" tool on the "Tools" palette and zoom in on one area of pixelation.
•3 Click the "Clone" tool, which looks like a stamper used to cancel checks. Hover your cursor next to, but not on top of, the area with the pixelation. Make sure your cursor is over a similar area of color and pattern, such as a similar shade of the blue sky.
•4 Press and hold down the "Alt" key and click your mouse one time, which copies the pixel-free area into memory. Shift your cursor so you're directly over the area with the pixelation, release the "Alt" key and click the mouse. This transfers the "no pixel" area directly on top of the pixelated area, covering it up seamlessly.
•5 Continue clicking the mouse to transfer the pixel-free area on top of same-colored pixelated parts of the picture. Repeat the "Alt" and click process to copy a different colored part of the picture and then transfer it onto the next pixelated area.
•6 Click the "Smudge" tool on the "Tools" palette. The tool looks like a pointing finger; if you don't see it, right-click a hollow triangle or hollow raindrop icon. They all share the same space on the palette. Select "Smudge Tool."
•7 Pull down the "Brush" menu at the top of the screen and select a small, solid round brush head such as #9.
•8 Drag your cursor over a pixelated area on the picture and watch how the pixelated boxes start to blend together smoothly. from http://www.ehow.com/how_6616511_edit-pixelated-pictures.html. Answered Dec, 14 2010