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Mars (08-08-20)

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#1 The_8_Bit_Zombie

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Posted 08 August 2020 - 08:59 PM

Had some excellent seeing last night and managed to get some nice shots of Mars! There's something interesting that I hadn't noticed before going on to the right of the Mountains of Mitchel - looks like a secondary fainter bit of the ice cap has been left behind. (Unless it's a sharpening artifact, but I don't think it is...)

 

h7dS0ot.png

 

Very minimal processing this time. I decided against removing the rind, mostly out of laziness haha


Edited by The_8_Bit_Zombie, 09 August 2020 - 12:32 AM.

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#2 Sunspot

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Posted 08 August 2020 - 09:40 PM

Very nice! At least you know how to remove the rind...still I'd love to only have that little rind in my images. grin.gif


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#3 KiwiRay

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Posted 08 August 2020 - 09:49 PM

Very nice indeed, Zombie!  I think that light spot to the right of the Mountains of Mitchel is a sharpening and/or diffraction artifact with a similar cause as the edge rind.


Edited by KiwiRay, 08 August 2020 - 09:49 PM.

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#4 Kokatha man

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Posted 08 August 2020 - 09:57 PM

Ah! - another good image from you Zombie..! waytogo.gif waytogo.gif


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#5 Kokatha man

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Posted 08 August 2020 - 10:52 PM

Very nice! At least you know how to remove the rind...still I'd love to only have that little rind in my images. grin.gif

Zombie - I hope you don't mind but I've taken the liberty of showing a very simple way to ameliorate the rind using only Gaussian blur in one of the many simple P/shop applications..."non-destructive dodge & burn" adds a layer of sophistication but this works well in most situations:

 

Open your image (only a screenshot btw)

 

ScreenHunter_2008 Aug. 09 12.32.jpg

 

Create a duplicate layer

 

ScreenHunter_2009 Aug. 09 12.33.jpg

 

Apply fairly strong Gaussian Blur to the duplicate layer

 

ScreenHunter_2010 Aug. 09 12.33.jpg

 

Clicking on the dupe layer drag it down to  the "Layer Mask" icon at the bottom of the section where  the layers are (the little fist/hand indicates where)

 

ScreenHunter_2015 Aug. 09 12.40.jpg

 

This creates a "layer mask" see hand with pointing finger  is now there)

 

ScreenHunter_2016-Aug.-09-12.41.jpg


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#6 Kokatha man

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Posted 08 August 2020 - 10:53 PM

Then you click "Edit > Fill"

 

ScreenHunter_2017 Aug. 09 12.41.jpg

 

& click "OK"

 

ScreenHunter_2018 Aug. 09 12.41.jpg

 

The little white hand & finger now points to this layer mask you have made which is now black - if you look at the image it now shows the original layer with all the sharpened detail & that *%$! rind still visible! lol.gif

 

ScreenHunter_2019 Aug. 09 12.41.jpg

 

Now pick the brush tool on the LHS & select a suitable brush size from up the top (Size "23" in the image, a somewhat bigger brush allows better control contrary to what you might think!)

 

ScreenHunter_2020-Aug.-09-12.42.jpg

 

Now carefully brush only around the limb & that region of the image seen where the  rind is apparent - going "inwards" no more than necessary to preserve the rest of the detail visible except that of the rind. It is also best to click your brush onto that 2nd (right hand) little black screen in the "Layer 1 copy" before using the brush on the image proper to make sure it is active...as you brush you can see that white area appear (see that little hand & finger pointing) which is the mask displaying that small region around the edge of the image that has been Gaussian blurred to "remove" the rind.

 

That's it..!!! wink.gif

 

ScreenHunter_2025-Aug.-09-12.45.jpg

 

 

 

 

 

 

 

 


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#7 dhammy

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Posted 08 August 2020 - 11:05 PM

Great processing tip! Thanks!



#8 APshooter

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Posted 08 August 2020 - 11:08 PM

Excellent!  Thanks so much for this tutorial!



#9 KiwiRay

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Posted 08 August 2020 - 11:37 PM

Ha...that's exactly what I do!  It's not perfect, but definitely makes an improvement.  I've never been able to get the dodge and burn method to work well with my CS2 version of Photoshop - dodging can lighten the rind, but leaves it a light gray rather than the colour of the nearby surface.  Is this something that works better in newer versions of PS? 



#10 Kokatha man

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Posted 09 August 2020 - 12:01 AM

...it shouldn't do that Ray - I've only ever had CS3 & CS4 but I know of no reason why it would do what you describe in CS2...

 

Are you creating a 50% grayscale overlay before you apply an ndd&b..?

 

I did another one of the above quite some time ago with non-destructive d&b...have no idea where it is on CN now however...

 

Actually using the above method in combination with ndd&b is a very good way to handle the rind - you can still have more detail right to the limb edges with a softer-sharpening of the image stack as the dupe layer...& then use ndd&b or apply a much lesser Gaussian blur than what I have applied to Zombie's image, which was only a quick run-through I just did...leave it at that or find some intermediate approach where you finish it off with ndd&b but much more easily worked... wink.gif


Edited by Kokatha man, 09 August 2020 - 12:02 AM.


#11 The_8_Bit_Zombie

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Posted 09 August 2020 - 12:32 AM

Thanks everyone. And thanks for the processing tutorial! Super helpful, definitely gonna give that a try. Looks way better than that dang rind!



#12 cavecollector

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Posted 09 August 2020 - 12:35 AM

Wow, Totally awesome image dude!


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#13 The_8_Bit_Zombie

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Posted 09 August 2020 - 07:50 AM

Wow, Totally awesome image dude!

Thanks!



#14 DMach

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Posted 09 August 2020 - 10:12 PM

Very, very nice result!


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#15 APshooter

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Posted 09 August 2020 - 11:52 PM

I tried it today, works well...but I don't have the edge detail that other imagers are getting.



#16 The_8_Bit_Zombie

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Posted 10 August 2020 - 08:41 AM

Very, very nice result!

Thanks DMach! :)



#17 Visit-the-Moon

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Posted 14 August 2020 - 09:05 PM

Great tip! I've only used bright-side de-ringing in R6 with partial success. Over do it & it impacts the details.




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