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.

rob

rob