Author Topic: No RGB Data with Nikon RAW Files during Batch Processing or Image Integration  (Read 14420 times)

Offline crose01

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Version  : 1.8RC7
OS         :OSX 10.8.4
System  : MacBook Pro


When importing NEF/RAW files the RGB information is lost. If I pre-convert them to .fit using Nebulosity then I don't loose the colour. I believe Nikon debayers NEF files automatically so there could be some additional de-bayering going on here in these processes but I can't see where.

Regards

Chris

Offline georg.viehoever

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Did you check the settings for DSLR_RAW in the Format Explorer?
Georg (6 inch Newton, unmodified Canon EOS40D+80D, unguided EQ5 mount)

Offline crose01

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The only options I have selected in the Format Explorer for DSLR_RAW are

'Use Camera White Balance' and Interpolation is set to 'Bilinear'. Ive retried with same files but different settings but with no success.

Regards

Chris
« Last Edit: 2013 June 21 10:19:16 by crose01 »

Offline pfile

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well so i guess the question is, what is your goal?

if you are going to calibrate your frames then you should not debayer them with DSLR_RAW. you should set it for raw CFA or raw RGB.

if you just want to load an image and look at the debayered result, you can set up DSLR_RAW to debayer the image, as you have.

you can also use the debayer process to debayer one of the images when opened as raw CFA or raw RGB.

i don't have a nikon camera. it's possible there is a bug here where DSLR_RAW can not properly debayer a .nef file. i kind of doubt it, but i can't test it either.

Offline crose01

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On the Batch Conversion the Bayering Options are greyed out and I can see anywhere where I can force it not to debayer.

Ideally I'd like to bring the RGB or however the colour is stored in a NEF file into PI through either the Conversion or the BatchProcessing
scripts.

Regards

Chris

Offline pfile

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well, there could be some issue with the batch conversion. what happens if you just do a single file by hand? or do you want to upload one of these nikon raw files somewhere and i can take a look at what happens?

Offline crose01

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I get the same result. I was doing a couple of files last night and they are as grey as the British Weather. I suspect when fixing the CRAW issue for Canon RAW files something may have gone astray with NIKON NEFs. Where should I upload my files to?

Regards

Chris

Offline pfile

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dropbox? or microsoft cloud drive? juan runs a server called endor, you can request an account there:

http://pixinsight.com/forum/index.php?topic=4039.0

Quote
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Offline crose01

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I've copied my files to public folder in Dropbox (chris.rose01@gmail.com) and also requested an account on the PixInsight Server.

Offline georg.viehoever

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You need to share a link (https://www.dropbox.com/help/167/en) . Your email address does not help.
Georg
Georg (6 inch Newton, unmodified Canon EOS40D+80D, unguided EQ5 mount)

Offline crose01

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This is the link. There's two files in each folder

https://www.dropbox.com/sh/37tqz8h8vs19dtp/CSUVK9oRaG

Offline papaf

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On the Batch Conversion the Bayering Options are greyed out and I can see anywhere where I can force it not to debayer.

Ideally I'd like to bring the RGB or however the colour is stored in a NEF file into PI through either the Conversion or the BatchProcessing
scripts.

Regards

Chris

I succesfully debayered your test images here, so obviously it's nothing wrong with the files.
Do you have the Bayering Options (btw, it's Debayer options, right?) greyed out even before selecting the images?

Offline georg.viehoever

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To me, color seems to be fine. Attached a screenshot showing my DSLR_RAW settings, the STF settings and the result for the first image.
Georg
Georg (6 inch Newton, unmodified Canon EOS40D+80D, unguided EQ5 mount)

Offline crose01

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If you convert it does the resulting .fit file still have RGB or is it just Grey? Thats the problem I have at the moment when I convert I loose all colour information.

Regards

Chris

Offline georg.viehoever

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When I save the image as a fits file, it still has 3 channels and is color, see screenshot from PI lower right display. To be honest, I don't quite understand what the problem on your system is. What are the exact steps you are taking? Can you provide screenshots of your RAW settings and the resulting images?
Georg
Georg (6 inch Newton, unmodified Canon EOS40D+80D, unguided EQ5 mount)