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A question on digital use due to JT\'s question
Old 12-02-2002, 09:43 AM   #1 (permalink)
jford
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JT's question about which image is preferred got me thinking about curves, linearity, and the processing of digital images.

I know from my own background in signal processing that once information is lost, it's lost and you're not going to recover it accurately by changing the gamma curve, etc. SO...

When using a digital imaging system, shouldn't one try to capture and store the original image in a mode which preserves the maximum amount of original information possible?

If so, isn't that the mode that corresponds to the maximum linearity for response?

What I mean is, shouldn't we use highest (real) resolution, color, flat curves, no enhanced contrast, no enhanced saturation, etc., to save the original image, and then adjust curves, etc., on a copy of the original using, e.g, Photoshop?

Thanks -

John

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