Issues with X8 undo "invert selection"

[SJS]

In X8, I have had problems several times with UNDO a few steps after inverting a selection, but I cannot reproduce it reliably (yet). Basically the invert selection shows as "undone" but the actual selection remains inverted, so that I have to deselect and start over.

Anyone else seeing this?

Update: just now made a RGB contiguous selection (of my almost white scanner background), then Inverted it to promote my actual desired image to new layer. BUT as usual realized I did not remove holes first (specks on the scanner ... so did UNDO on the invert... but when I go to Modify -> Remove holes I am still working with the inverted selection. The UNDO doesn't happen!

[LeviFiction]

I have not yet seen this. Though I will keep a look out. I realize this doesn't help you but I am curious, can't you just re-invert the selection instead of starting over?

[SJS]

I could not get that to work at the time.

[SJS]

In PSP X9, undo is still broken for "invert selection"

And simply repeating invert selection may or may not work. This really becomes a problem if the goal is "undo" multiple steps. NOTE that the invert selection shows as "undone" in the History: it is NOT flagged as something that cannot be "undone".

[LeviFiction]

Weird, I still can't duplicate the issue either. To verify that I'm seeing the correct selection I use the "Edit Selection" option to highlight the selected area with a ruby lithe overlay. And undo corrects selection inversion as expected. So not sure what's going on when you get this error.

[SJS]

OK, here is an example: I have an image that I want to separate into multiple layers to manipulate. So I want to select a section and promote it to a layer, but it is easiest to select the "background" area of the image, which may be my almost white scanner cover:-). So I magic wand select that, to invert the selection & promote it to a new layer.
At that point the specks & flaws that I failed to notice to "modify/remove holes" may show up, OR I may not notice until I have made some changes and increased the zoom a few steps later. Now I want to back up & get a cleaner selection, so I "undo" the steps since selecting the background. In History the "undo" shows as OK, but if now I promote the selection, it is NOT the "white" background that gets promoted: the "undo" works for everything except "invert selection.
I am using X9, Windows 10, and working with 300 - 400 dpi images. I see this with various size files.

[JoeB]

If I make a selection and invert it and then use Undo then the selection reverts to the original selection. If, now still having the original selection, I do invert then Undo I get the same result, no matter how many times I do this.

However, If I make my selection and invert it once and use Undo it works as above. But another scenario. I make the selection and invert it. Rather than use Undo I just do Selections>Invert again to get back to the original selection. Then if I use Undo I would expect it to undo the last Invert and go back to the originally inverted selection but it doesn't. It just maintains the original selection as if each Invert in the History panel does not remember the previous state of the image that a particular Invert caused on the image. But I can continue to invert the selection from the original to the inversion and back using Invert as many times as I wish to toggle between the original and inverted selection. Same behaviour in X7, X9 and 2018, so likely some logical reason for it?

[JoeB]

OK, here is an example: I have an image that I want to separate into multiple layers to manipulate. So I want to select a section and promote it to a layer, but it is easiest to select the "background" area of the image, which may be my almost white scanner cover:-). So I magic wand select that, to invert the selection & promote it to a new layer.
At that point the specks & flaws that I failed to notice to "modify/remove holes" may show up, OR I may not notice until I have made some changes and increased the zoom a few steps later. Now I want to back up & get a cleaner selection, so I "undo" the steps since selecting the background. In History the "undo" shows as OK, but if now I promote the selection, it is NOT the "white" background that gets promoted: the "undo" works for everything except "invert selection.
I am using X9, Windows 10, and working with 300 - 400 dpi images. I see this with various size files.

Following your steps I I think I see what you're saying. I start with a blank History palette. Then it shows Magic Wand, Invert Selection, Promote Selection, Select None (so I can start working on the new layer), and Clone tool several times (which I used to make a few changes to the promoted selection). Now I use Undo and watch it step back through all of the Clone stuff, undoes Select None so I have the selection back on the promoted selection), then undoes the promoted layer so I'm back to a Background layer with the object still selected. Hit Undo again and the Invert Selection in the History Palette looks like it's undone but the selection is still around the object. Hit undo again and the Magic Wand is now undone and there is no selection whatsoever. So yes, it doesn't undo the Invert Selection.

However, I now have a History palette with all of those steps undone. If I now hit the Redo button the palette shows the Magic Wand active again and also the original Magic Wand selection of the white background is back on the image allowing me to clean up the missed stuff. Then I either have to use the History palette to re-do the Invert Selection or, preferably, just do Invert Selection and start fresh by then promoting the object, etc.

[LeviFiction]

Okay, so kind of fun here. With the image I was using, I saw no issues at all. I could not duplicate the issue. I followed both your instructions and JoeB's example. Worked perfectly everytime.

So I made my own image that is just an ellipse on a background, and that image produced the error.

Video: https://drive.google.com/file/d/1L06Kkg ... xI7gA/view

EDIT: I have reported this to Corel, along with a link to this forum topic. Don't know if it'll do any good but just so you know.

[JoeB]

Okay, so kind of fun here. With the image I was using, I saw no issues at all. I could not duplicate the issue. I followed both your instructions and JoeB's example. Worked perfectly everytime.

So I made my own image that is just an ellipse on a background, and that image produced the error.

Video: https://drive.google.com/file/d/1L06Kkg ... xI7gA/view

After watching the video I used the same image I had used before (which had a white background and blackish gloves in the center). This time, instead of selecting all of the white background (which puts the selection on the extreme outside of the image) I selected the black gloves instead. Then I went through the whole procedure - invert selection, promote selection (which now has the white outside portion of the image selected) used Clone brush and then used Undo to step back. This time, just like your first attempt, the Invert Selection was undone and the gloves were again selected.

At this stage the only thing I can come up with is that selecting a complete outside background and inverting to an inside portion of the image causes the issue, which is what happened to the OP, to my first attempts, and to your simple (second) video example. But if the selection is inside of the outside perimeter of the image this issue doesn't arise and Undo works on the selection as it should.

That experiment could be fine tuned (e.g., more complicated backgrounds where some if it is not originally selected so still touches the outside perimeter of the image) but I don't feel like taking the time to do so at present and not sure how important it is.

[hartpaul]

And another to throw in. Try undoing right back to start and then redoing first 2 steps - in alternative cases the promote selection to layer first promotes the circle and then next time promotes the background.
ie first time the circle was promoted to the layer , now undo as far as you can go and then redo and this time the background is promoted, undo as far as you can and then redo and once again the circle is promoted to layer . This is also happening in 2018.

[Dijenga]

In X8, I have had problems several times with UNDO a few steps after inverting a selection, but I cannot reproduce it reliably (yet). Basically the invert selection shows as "undone" but the actual selection remains inverted, so that I have to deselect and start over.

Anyone else seeing this?

Update: just now made a RGB contiguous selection (of my almost white scanner background), then Inverted it to promote my actual desired image to new layer. BUT as usual realized I did not remove holes first (specks on the scanner ... so did UNDO on the invert... but when I go to Modify -> Remove holes I am still working with the inverted selection. The UNDO doesn't happen!

I'm confused ... why do an "undo" when all you need to do is hit <CTRL>+<SHIFT>+<I> and invert your selection again? Always works for me ... If you only inverted, invert again and it's all back to before you inverted the first time.

[JoeB]

In X8, I have had problems several times with UNDO a few steps after inverting a selection, but I cannot reproduce it reliably (yet). Basically the invert selection shows as "undone" but the actual selection remains inverted, so that I have to deselect and start over.

Anyone else seeing this?

Update: just now made a RGB contiguous selection (of my almost white scanner background), then Inverted it to promote my actual desired image to new layer. BUT as usual realized I did not remove holes first (specks on the scanner ... so did UNDO on the invert... but when I go to Modify -> Remove holes I am still working with the inverted selection. The UNDO doesn't happen!

I'm confused ... why do an "undo" when all you need to do is hit <CTRL>+<SHIFT>+<I> and invert your selection again? Always works for me ... If you only inverted, invert again and it's all back to before you inverted the first time.

I'm not the original poster but I suspect he was doing the Undo's because he also wanted to undo the work he had done on the promoted selection before reverting back to the original selection to be able to clean up that selection and then start fresh when he again inverted the selection and then promoted it.

I would add that you don't have to hit Ctrl+Shift+I to do an inversion, which takes three fingers - two on one hand and one on the other - to accomplish, plus you have to remove your hand from the mouse you have been using and then go back to the mouse to continue your work. Selections>Invert on the menu bar using the mouse you are already using does the same thing and only takes one hand and one finger on that hand to do the clicking. And you don't have to go back to the mouse to continue your work because you still have it in hand.

[LeviFiction]

It's also stated in SJS's post that invert doesn't always work the second time around either. I made that initial suggestion when they created the post back with X8. They just recently reopened this topic to announce it's still broken with X9, where they also state "simply repeating invert selection may or may not work." So they are also having problems getting invert to work a second time.

[Dijenga]

I would add that you don't have to hit Ctrl+Shift+I to do an inversion, which takes three fingers - two on one hand and one on the other - to accomplish, plus you have to remove your hand from the mouse you have been using and then go back to the mouse to continue your work. Selections>Invert on the menu bar using the mouse you are already using does the same thing and only takes one hand and one finger on that hand to do the clicking. And you don't have to go back to the mouse to continue your work because you still have it in hand.

um, no ... three fingers on left hand (actually 2 fingers and thumb) cover the combo while right hand remains on mouse.