Author Topic: extracting just the red channel (without debayering) from a canon CR2 raw file?  (Read 3103 times)

Offline mash.m

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Hi,

i have taken some halpha Images with my dslr. now i wan to extract only the red chnaell wihtout debayering. i know that there is the BatchChannelExtraction, but when i load one or more cr2 raw´s and start the extracting - nothing happen. the cpu load goes a Little higher for some time and the hourglass come up for some seconds. but no file at the Destination Folder.

any ideas?

thanks markus

Offline Ignacio

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Try SplitCFA.

Ignacio

Offline MikeOates

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Hi Markus,

Last year I posted a workflow for narrowband imaging with a DSLR, there are probably different tools available now like Ignacio mentions (SplitCFA) but you may find it useful:

http://pixinsight.com/forum/index.php?topic=5748.msg39771#msg39771

Mike

Offline mash.m

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Hi,

splitcfa sounds good, but doesn´t work:

Output from pi:

File 1 of 1
Open D:/ServerFolders/Bilder/Hobby/Markus/IC1396/hAlpha/IMG_5469.CR2
Wrong image dimension: odd width [5202] or height [3465].
Close D:/ServerFolders/Bilder/Hobby/Markus/IC1396/hAlpha/IMG_5469.CR2

Markus

Offline Ignacio

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Hi,

splitcfa sounds good, but doesn´t work:

Output from pi:

File 1 of 1
Open D:/ServerFolders/Bilder/Hobby/Markus/IC1396/hAlpha/IMG_5469.CR2
Wrong image dimension: odd width [5202] or height [3465].
Close D:/ServerFolders/Bilder/Hobby/Markus/IC1396/hAlpha/IMG_5469.CR2

Markus

That's odd, I use it all the time with no problem. Make sure you have RAW set to monochrome CFA, it might make a difference.

Ignacio