You can rotate, reflect, and skew an image by specifying destination points for the upper-left, upper-right, and lower-left corners of the original image.

通过指定原始图像的左上角、右上角和左下角的目标点可旋转、反射和扭曲图像。

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Instead of digging through pieces of paper and peering into corners, we move our fingers left and right.

我们不用盯着角落、数着一沓一沓的钞票，只要左右移动几下手指就可以了。

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Now that the corners are transparent, a piece of the right-side image shows through the corner of the left-side image.

现在，角落已经变成透明色，左边的图像将透过右边图像的角落。

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Broken into four smaller squads, the Sea Gals left their posts at the corners of the end zones only to perform full-group numbers between quarters.

FORBES: Do You Have What It Takes To Be A Sea Gal?

It's this oversampling that reduces artifacts and noise in images and while Nokia's got some secret algorithms at work, there's enough data left within these image files to unlock those darkened corners.

ENGADGET: Nokia 808 PureView impressions, camera showdown with the iPhone 4S and HTC One S

The game will always be remembered as Brian Lara's match - when the Trinidadian left-hander despatched England's bowlers to all four corners of the Antigua Recreation Ground on the way to scoring 375 - at the time, the highest individual score in Test history.

BBC: Page last updated at 08:18 GMT, Wednesday, 21 January 2009