Predetermined indicia are detected in a digital image that is formed by optical scanning. Alternatively, or in addition, a digital image can have a predefined insertion field. Input and/or an optically scanned image is substituted in the digital image for the predetermined indicia and/or for the predefined insertion field. The digital image having the substitution is rendered.

 
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> Method and apparatus for examining end faces of light guides

> Frequency-converted high-power laser with recirculating polarization control
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