Author Topic: Range_Mask + CloneStamp?  (Read 562 times)

Offline fatboy1271

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Range_Mask + CloneStamp?
« on: 2019 August 15 22:04:52 »
Sorry if this Post is in the wrong section...

I'm attaching an image of a range_mask created with RangeSelection. My question is whether or not I need to CloneStamp out the black dot leftovers in the stars? They range from "big" to pretty small and I don't know how to approach this.


Offline ngc1535

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Re: Range_Mask + CloneStamp?
« Reply #1 on: 2019 August 16 23:21:21 »
The "need" depends on how important the mask is in terms of the operation/process you are applying.
The general answer I suspect is yes since whatever you might do- you want it do equally across a star.
There are many way to fix this particular issue... I might apply morphological dilation- or perhaps
better use the morphological selection with a greater than .5 (maybe .75) parameter. This will fill in
the holes with the surrounding white values assuming you choose a large structure element.

Give it a try.

You could probably also use Histogram Transformation and simply lower the white point (right most adjuster) on this mask...
This would probably work as well.

-adam

Offline fatboy1271

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Re: Range_Mask + CloneStamp?
« Reply #2 on: 2019 August 22 22:50:45 »
Thanks adam!

My "biggest" issues right now are knowing the importance of any Process I'm doing and then not knowing all of the Batch and Process options. Example, I had not known about applying morphological dilation.

On my RangeMask I tried bumping up the HistogramTransformation for the whites and it seemed to introduce more than I wanted. This could all be because I did something incorrectly earlier in my Project, but I don't know...

fat