Author Topic: Problem with combining Jupiter RGB's  (Read 1268 times)

Offline CharlesW

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Problem with combining Jupiter RGB's
« on: 2014 January 07 20:33:44 »
I took my first sets of mono RGB's of Jupiter last night. I processed the AVI's in Autostakkert and saved as tif. Those will open just fine in PI and I can do an LRGBCombination to get a color image. But, if I process the images in Registax after Autostakkert and save as tifs, they will open in PI, but I can't perform the LRGBCombination. When I try and assign the images to their color slots a message pops up-"no compatible images." The header of the Autostakkert images starts with "Gray" while the header of the Registax images begin with "RGB." I have looked at the metadata of both and Registax is adding "RGB" under Photometric Interpretation whereas Autostakkert isn't adding anything. Any ideas on how I can get my Registaxs to combine?

Offline pfile

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Re: Problem with combining Jupiter RGB's
« Reply #1 on: 2014 January 07 22:50:21 »
so if Registax has put the same exact greyscale data in each channel and called it an RGB file, what you can do is use ChannelExtraction to split out the 3 channels into 3 identical greyscale files and then discard two of them.

do that for all 3 of your images and then combine the 3 resultant greyscale images.

or, in pixelmath you could write the expressions -

R/K: red_image[0]
G: green_image[0]
B: blue_image[0]

and set it to create a new image with the color space set to RGB color, and click the square apply button. that would extract the channels and create the RGB image in one go.