Bad pixels present even after successfully creating badpixel.bin

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Re: Bad pixels present even after successfully creating badpixel.bin
« Reply #10 on: 04 / June / 2016, 19:15:27 »
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Hello there.

I own ELPH 300 HS and I have problems with stable release http://mighty-hoernsche.de/bins/ixus220_elph300hs-100c-1.3.0-4272-full.zip

I've successfully created bad pixel I followed this guide: http://chdk.wikia.com/wiki/Badpixel_removal but my raw files still have ton of bad pixels. There is one particularly noticable (green one) you can spot it without zoom. But if you zoom you can see a ton of others bad pixels (I think they are bad pixels).

I've attached badpixel file and here is raw image:  https://www.dropbox.com/s/ak4s6bwzwvuv1ak/CRW_4145.DNG?dl=0

Any ideas how can I get rid of bad pixels?

You've selected DNG version 1.3 in the CHDK Raw menu.

Version 1.3 does not need a badpixel.bin file, it writes an instruction to the DNG file to tell post processing software to handle the bad pixels.

Unfortunately only Adobe software seems to do this, despite the fact that it has been part of the standard for many years.

If you select DNG version 1.1 in CHDK, then the bad pixel removal will be done in-camera (which takes a bit longer depending on how many bad pixels you have).

Phil.

I have been banging my head against the wall for a long time now, not being able to find out why i used to be able to shoot in dng and suddenly i wasnt. Just found this thread after searching for a long time, now my dng-badpixel problems are solved.

Can someone please add this info (dng v1.3 no badpixel removal by camera) to the chdk manual, that would have saved me a nervous brakedown  :(

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Offline reyalp

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Re: Bad pixels present even after successfully creating badpixel.bin
« Reply #11 on: 04 / June / 2016, 19:41:13 »
It was already mentioned the DNG version section, but I've tried to make it stand out a bit more.
Don't forget what the H stands for.

 

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