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Photos: Getting rid of camera wobble

Before-and-after examples of images put through a new process to get rid of blur from camera shake.
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Topic: Hardware
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1 of 7 Bill Detwiler/ZDNet

woman in mirror

In the blurry original on the left, it's hard to detect details such as the wood grain of the towel rack, or the towel's nap, that are readily apparent in the sharpened version. The box around the woman's face shows the rectangle selected for the deblurring process. Too small a rectangle lowers the result's quality, but too large takes more time.

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2 of 7 Bill Detwiler/ZDNet

carving

The deblurring technique alters color somewhat but clarifies many elements of this carving.

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3 of 7 Bill Detwiler/ZDNet

bird

The deblurring method resolves details in feathers and a darker patch in the dark mask around the bird's eye. However, the processed image also shows artifacts, visual echoes that look somewhat like ripples near sharp edges.

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4 of 7 Bill Detwiler/ZDNet

shake path

These pairs of images show close-ups of elements in original photos on the left, and the path of camera shake on the right. The shake path, called the blur kernel, is then used as the starting point for a process called deconvolution that can reverse some of the blur effects.

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5 of 7 Bill Detwiler/ZDNet

fountain

The deblurring algorithm helps even with relatively complicated images, such as this fountain.

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6 of 7 Bill Detwiler/ZDNet

text

The deblurring process can work well with text, which has plenty of high-contrast edges.

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7 of 7 Bill Detwiler/ZDNet

boy's arm

The deblurring process is complicated when there's motion blur within the image (as in the case of this boy's arm) as well as from the camera.

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