Create Syn..Create Synthetic Luminance(Extract L from RGB)问题:只拍了Hα、R、G、B,没用拍L解决办法:从RGB合成一个L前提:R、G、B三个已经做过StarAlig
With all channels delinearized I then use LRGBCombination with my processed (synthetic or H) luminance layer to create the color image. Weighting on H needs to be interatively adjusted. Values between 0.7 and 0.9 usually give me the best results for further color tweaking. I do not remove...
When satisfied with your changes the script will create a new image containing just the Ha signal. CombineHaWithRGB: After subtracting the Ha you can use this script to combine it with the RGB image. You can reduce the noise by adjusting the black point of your Ha image and you can ...
Finally, at this stage it is always very useful to apply an S-shaped curve to the combined RGB/K channel with CurvesTransformation. This enhances contrast on the brightest areas. We apply the curve through a luminance mask, as described in figures 21, 22 and 23. ...
0.2 RGB/SHO:(Create Synthetic Luminance with "ImageIntegration" function) a) Run DynamicBackgroundExtraction seperately on SHO, RGB images because combine. b) ChannelCombine to merge RGB into single image c) Hubble Palette: Map R=S, G=H, B=O and repeat (a) to combine SHO into single im...
I recommend you to create a separate luminance layer, as it can greatly improve your image (but that’s the subject of another tutorial). Here’s the same image of IC1396 (& friends) with a luminance layer applied to it :Curves adjustments (Hue in particular) are also almost necessary ...
etc. On rare occasions I’ve noticed a little color separation between a color filter image and my luminance data on some stars that was fixed when Distortion correction was enabled. Theoretically, it could improve the star sizes as well since the stars should overlap more precisely but I have...
How can I create a synthetic luminance from the split RGB channels I created from the OSC image? Is it with pixel math? What sort of formula? Also, while we are on the subject, say I want to add Halpha data to my OSC image. After splitting into RGB, do I add the Halp...
Most of the processing was done with pixinsite with a touch of photoshop before uploaded. This time, I dedicated 20 minutes for each color and mono camera, then combined. I made a luminance image using the RGB image, using .5X of the H-alpha data to the red channel. Using the ...
In the past I have naively stretched RGB with the same mentality, looking at brightness and contrast primarily. But since the the luminance of RGB is then replaced in LRGBCombine, it occurs to me that approach to stretching RGB may not be ideal. It's the color informatio...