Select and Mask Smart Radius destroyed selection - must see image.

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  • Problem
  • Updated 2 years ago
  • (Edited)
The Select and Remask was doing a horrible job. Dark brown hair against pretty plain grey background.
The select brush was selecting huge areas of the background that would never been selected in prior versions of PS.I clicked on the Smart Radius button and the entire image filled with huge block of selected and non selected areas.  This was not a display glitch, as clicking done resulted in the layer mask being created as viewed.  This is horribly broken.
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AMPhoto

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Posted 2 years ago

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AMPhoto

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FYI, running on Mac OS X 10.11.5. 32GB of RAM.  3.4GHz i7 Quad core. Graphics:  NVIDIA GeForce GTX 680MX 2048 MB
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Meredith Payne Stotzner, Employee

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Hi AMPhoto,
Thank you for the report with the screenshot.
-  Would you please try with the GPU disabled? (• Preferences > Performance • Deselect "Use Graphics Processor. • Quit and relaunch Photoshop).
I found another thread of a user with a 600 series graphics card having issues:  https://forums.adobe.com/thread/2170964
- Does issue occur for the image in 8-bit (Image > Mode  > 8 bits/channel)?
- How about with 16-bit on a single layer?
Thanks,
Meredith
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AMPhoto

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This was with a 16bit DNG file. (created in camera from a Pentax body).It was opened via Lightroom.Naturally I am unable to reproduce the issue -- no changes.
But again, with a single click a huge section of the background is selected.This behavior is the same with and without GPU.The feature is completely unusable with this poor edge detection.  I've worked on this same image in the past and edge detection was not difficult.  The result was poor, but the area selected was reasonable.

The image below was created by selecting a portion of the subject then single-clicking the mouse three (3) times; half on the hair, half off.  Most of the background was magically selected with a single click.

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AMPhoto

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I've tried 16 bit and 8 bit images.  I've tried blue backgrounds and grey backgrounds.
The good news is I have not had a re-occurrance of the blocky selection issue yet.But the Select and Mask is totally useless.
The following image on a simple grey background causes nothing but chunks of background to be selected. There absolutely no fine detail being masked. These selections are being made form quick clicks of the mouse partially on hair, part on background.  Although I get same results by dragging the mouse over the same areas.
All of these are on a single layer.


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AMPhoto

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OK, so I tried duplicating the layer. The rough initial Selection remained.I went into Select and Mask and nothing was pre-selected (the whole image was visible) so none of the tools were useful.
I cancelled.  I de-selected everything and created a new rough selection on my image.
I went into Select and Mask, and again no selection was there. (the whole image was visible) and again none of the tools were useable.
It appears creating a new layer with a selection in effect permanently disables Select and Mask.
{edit}Apparently the selection is there as I can see a teeny tiny preview in the View Mode area, but with Onion Skin mode the entire image is shows at  0% opacity regardless of the actual opacity setting.  If I choose On White, for example, instead of Onion Skin I can see my selection.  Again, it is just not as useful.
(Edited)
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AMPhoto

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FYI, you can see what I see in action here;By the way, I quit and restarted photoshop three times and finally Onion Skin worked again.  Sadly the rest is still no so great.
https://www.youtube.com/watch?v=rFklGaxHCpc
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Meredith Payne Stotzner, Employee

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Hi AMPhoto,
It's great that the issue for the original post has resolved itself, but still disturbing that it ever occurred. Let us know if it occurs again.

Thanks for the video, that was very helpful.
I can see what the issue is.
In the step of attempting to refine the edge, the "Quick Selection Tool (W)" brush is selected. 
The tool needed is the "Refine Edge Brush Tool (R)".

In both these tutorials, the author switches to the Refine Edge tool (http://scottkelby.com/a-new-photoshop-is-here/  and  https://helpx.adobe.com/photoshop/how-to/selection-masking-space.html)

Let us know if that gives you the results you are hoping for.
Thank you,
Meredith
Photoshop Team
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AMPhoto

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Well, that's embarrassing (face-palm). Thank You!  I'm glad I cerated the video.I assumed refine edge would still be the default behavior and that the video was on another tool because he had done previous actions. Which it appears it was, as the default for me was the first tool for Selection.
Regardless... completely My Fault!  Yay! (i.e.  easy fix)Hopefully I will not run into the other issue I saw on the first run.  
You can close this issue.Thanks again.