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Does CHDK DNGs include a preview JPEG?

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Offline surely

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Does CHDK DNGs include a preview JPEG?
« on: 23 / May / 2017, 20:33:16 »
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Hi all,
When I zoom into the DNG images (using OS/X Preview app), I think I see a level of detail that can't exist with a simple JPEG, because JPEGs represent color in 8x8 pixel blocks.
 Can someone tell me though definitively whether there are JPEG previews in CHDK DNGs?
Thanks.
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Offline waterwingz

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Re: Does CHDK DNGs include a preview JPEG?
« Reply #1 on: 23 / May / 2017, 20:49:38 »
Quote from: surely on 23 / May / 2017, 20:33:16
Can someone tell me though definitively whether there are JPEG previews in CHDK DNGs?
There are no previews.  However, there is a small thumbnail image. 

See : CHDK generated DNG has no preview

edit :  also The DNG generated by CHDK on a Canon A550 has no embedded preview
« Last Edit: 23 / May / 2017, 20:51:15 by waterwingz »
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