iceman
30-03-2006, 07:04 AM
Hi again.
Another thing I like looking at while processing my images, is how the individual red, green and blue channels look before recombining them into a colour image.
Most of you know my processing routine involves splitting the original colour avi into red, green and blue frames.
I then process each set of frames from each channel. That is, I drag the set of "red" bmp's into registax, align, stack, wavelets, save. I do the same for green and then blue.
I open them in AstraImage, and then do a LR deconvolution on them to sharpen and enhance the details further. Finally they are recombined back into a colour image, aligning the red and blue channels where the atmospheric dispertion shifted them.
The separate channels can show different amount of detail, and I like looking at the red and green channels especially, as they show stuff you sometimes don't see in the recombined image.
So here's an example of the red, green and blue channels, processed up to the point where they are about to be recombined.
The blue channel suffers the most from the effects of seeing and atmospheric dispertion - so any time you see reasonable detail in the blue channel, you've had a fairly good night.
Comments and questions welcome.
Another thing I like looking at while processing my images, is how the individual red, green and blue channels look before recombining them into a colour image.
Most of you know my processing routine involves splitting the original colour avi into red, green and blue frames.
I then process each set of frames from each channel. That is, I drag the set of "red" bmp's into registax, align, stack, wavelets, save. I do the same for green and then blue.
I open them in AstraImage, and then do a LR deconvolution on them to sharpen and enhance the details further. Finally they are recombined back into a colour image, aligning the red and blue channels where the atmospheric dispertion shifted them.
The separate channels can show different amount of detail, and I like looking at the red and green channels especially, as they show stuff you sometimes don't see in the recombined image.
So here's an example of the red, green and blue channels, processed up to the point where they are about to be recombined.
The blue channel suffers the most from the effects of seeing and atmospheric dispertion - so any time you see reasonable detail in the blue channel, you've had a fairly good night.
Comments and questions welcome.