Mineral Moon - attempt 2

[Menno555]

Looking good Dave!
It's indeed a kind of specialized way on how to approach it.
And I don't know if I mentioned this already: with capturing the moon with a mineral moon processing in mind, it's best to be a bit on the lower side in the histogram than normal. For this one you were on Mean 57, so with a next try you could go for example to Mean 50 or maybe lower. This way you have some more headroom in processing because the color saturation is a kind of stretching.

Menno

[turfpit]

Thanks Menno. I will try with a lower histogram next month (moon is very low for me now).

Dave

[iamhondo]

"...Microsoft Image Composite Editor stitching results in the greenish images..."

When I saw this I did a double-take. Then raised an eyebrow. I've been using ICE all the was back when it was supported by Microsoft. I never noticed the green tint. And it's not subtle.

I used this stock photo to test. I created two mosaic panels and then merged them. The left image is the mosaic stitch by ICE while the right is the original.

The result was a blue/red suppressed image. It's most notable on the left cheekbone of the woman on the left.

I stumbled on some image size oddities in ICE, too. I need to look closer at my process on the split image here and dig into the other oddities. If I find something meaningful, I'll post on Cloudy Nights.

Thanks for making me aware of ICE's bug.

Joe

[turfpit]

Joe

Thanks for the info. The image you posted demonstrates that not all is well in the application. The info I posted came from forum user @Menno55.

This was my first attempt at colour imaging of the moon - all previous work has been with mono lunar mosaics.

If you do find out more can you leave a link here to your Cloudy Nights post.

Thanks.

Dave

[turfpit]

I have revisited this.

mineral_moon_comparison.PNG (862.82 KiB) Viewed 9274 times

The left hand image is the one from post #9 and #10 above. The right hand image was re-processed as follows:

• Stack best 10% of 825 in Autostakkert!3

• Stitch 2 panels with Microsoft Image Composite Editor

The next steps are all within PixInsight:

• Deconvolution, St Dev=2.0 & Iterations=20

• Range Selection to create mask

• Apply inverted mask

• Curves to brighten, 2 applications

• Apply Local Histogram Equalisation

• Curves to increase saturation, 4 applications

• SCNR to remove green caste

This image has better control of the brightness in the southern region and stronger colour of the minerals.

Dave

[oopfan]

Wow, Dave, what a difference!

[timh]

Those PI tools working really well! A cleaner and better coloured image
Tim

[turfpit]

Thanks for the comments Brian & Tim.

Dave

[aquariusCZ]

I use Registax to saturate the colors of the Moon.
Details in the photo.
https://astrofotky.cz/gallery.php?show= ... 849926.jpg
https://astrofotky.cz/~aquarius