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Hi [USER=134020]@asahid[/USER]
Before I give one type of approach I want to say that the best results would be achieved when you have the image at decent resolution and most importantly without any lossy compression such as with JPEG. As an example, here is the Hue channel that shows how much data is lost (blocked up). This limits some techniques that could otherwise be used and may also may the selection less desirable: The image below is of 3 1/2 beads of the necklace

[ATTACH=full]136931[/ATTACH]

The approach I used was pulling out the Saturation component of the image and using a curves adjustment Layer to make a higher contrast per this screenshot:

[ATTACH=full]136932[/ATTACH]

The image below shows a blowup of just a bew beads of the necklace. Note that the result would be a lot crisper if the starting image did not have lossy compression:

[ATTACH=full]136933[/ATTACH]

I hope this gives a one direction to consider.
John Wheeler

<blockquote data-quote="thebestcpu" data-source="post: 1533831317" data-attributes="member: 112691">Hi [USER=134020]@asahid[/USER]Before I give one type of approach I want to say that the best results would be achieved when you have the image at decent resolution and most importantly without any lossy compression such as with JPEG.&nbsp; As an example, here is the Hue channel that shows how much data is lost (blocked up).&nbsp; This limits some techniques that could otherwise be used and may also may the selection less desirable:&nbsp; The image below is of 3 1/2 beads of the necklace[ATTACH=full]136931[/ATTACH]The approach I used was pulling out the Saturation component of the image and using a curves adjustment Layer to make a higher contrast per this screenshot:[ATTACH=full]136932[/ATTACH]The image below shows a blowup of just a bew beads of the necklace.&nbsp; Note that the result would be a lot crisper if the starting image did not have lossy compression:[ATTACH=full]136933[/ATTACH]I hope this gives a one direction to consider.John Wheeler</blockquote>

[QUOTE="thebestcpu, post: 1533831317, member: 112691"] Hi [USER=134020]@asahid[/USER] Before I give one type of approach I want to say that the best results would be achieved when you have the image at decent resolution and most importantly without any lossy compression such as with JPEG. As an example, here is the Hue channel that shows how much data is lost (blocked up). This limits some techniques that could otherwise be used and may also may the selection less desirable: The image below is of 3 1/2 beads of the necklace [ATTACH type="full"]136931[/ATTACH] The approach I used was pulling out the Saturation component of the image and using a curves adjustment Layer to make a higher contrast per this screenshot: [ATTACH type="full"]136932[/ATTACH] The image below shows a blowup of just a bew beads of the necklace. Note that the result would be a lot crisper if the starting image did not have lossy compression: [ATTACH type="full"]136933[/ATTACH] I hope this gives a one direction to consider. John Wheeler [/QUOTE]

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