Script to set Keystone Amount to 100
Is it possible to make a script that will set the Keystone Amount to 100? In the scripting dictionary I can only find what appears to be autoadjust.
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That is all that I can find as well.
Would be a good idea to make a feature request for an Applescript command to set the keystone value.
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Thanks.
I've already requested an option to change the default amount from the arbitrary 80, here, which would be easier than having to use a script, but at least a script would be easier than having to change the amount manually. So I'll do as you suggest and request an Applescript command.
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You do have a Preset option Thomas.
Does that give any options you can work with?
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I've made a preset but clicking on the preset isn't any faster than changing the value from 80 to 100, so I haven't gained anything that way.
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Unless you can use it in a batch to preset all images that you are about to work on. (Assuming more than one of course).
Also you get an instant view option when hovering over the preset.
But my main thought was whether a script to apply the preset (i.e. a uniquely identified preset with a dedicated script) might be an option. I have no idea as no such script facility exists for C1 with Windows.
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"Unless you can use it in a batch to preset all images that you are about to work on."
Only, the preset wouldn't be applied until after keystone corrections had been made.
"But my main thought was whether a script to apply the preset (i.e. a uniquely identified preset with a dedicated script) might be an option."
This is indeed a good idea. I'll have a look at that.
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Thomas,
I checked (very quickly - not an extensive test) before posting that the Keystone preset (one I had created as a test some months ago) both worked just as all Presets (can be applied and will add the tool and adjustment to the edit instructions for the variant) and did not seem to be overwritten (set back to default) when the tool was then used to make the required Vertical, Horizontal and Aspect corrections.
I concluded that it was entirely possible to use a Preset to add the tool with only the Amount set the chosen value in preparation for expected Keystone adjustments during later processing.
I started to wonder if, in some use case situations, there was potential for creating a series of presets that would be required regularly on a lens by lens basis.
I could think of situations in, say, product photography or art reproduction or maybe even architecture where a job might entail creating some standard shots where the same correction might be desirable for several subjects. Perhaps even building developments were the site designs are so similar that many shots of individual structures are created from the same relative position at the same distance using the same lens and so would require the same adjustments - or at least where the same adjustments would be good enough for the purpose.
Absolute precision might not be present but the preset could bring it closer.
However I still think that what you are really seeking is closer to a mesh warp tool or maybe something like Affinity's "Perspective" tool. Part of that has functionality that is effectively very much the same as C1 in terms of controls and results despite approaching the requirement from a different visual presentation.
Its other facilities probably would offer you somewhat more control but they require pixel layer processing and are destructive - so aligned with the PhotoShop approach which is no surprise since both applications come from a graphics creation application originally.
The interesting aspect there, in terms of the scripting question that guides this particular thread, is that presumably PS (not sure about Affinity) would have some scripting type competency using Actions that might be useful to your needs. That said unless it is offering some sort of "Auto" correction I'm not entirely convinced that it could be effective at a significant level of precision but is might offer something useful.
None of the examples I have seen for the base "Keystone" or "Perspective" in Affinity or Lightroom avoid significant distortion of the subject matter. But the "Mesh Warp" approach might offer some potential to re-balance the distortion proportionately. Whether that could be automated for time saving I am not at all certain. It seems to be that to do so effectively one would be heading into CGI/AI territory or perhaps the better versions of 360 degree camera renditions and using the technology they deploy.
So still no more than a partial solution to you needs but I do thing the Preset approach for 100 % adjustment "default" setting is a workable option for you. And as a Preset (or series of Presets?) it would allow you to quickly compare options simply by rolling the cursor up and down the list of Presets. That might be a useful option in some situations.
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When you apply vertical keystone correction to a photo after applying a preset to set the amount to 100, the amount still defaults to 80, so the preset needs to be applied after keystone correction.
As I've written many times, I'm aware that the more keystone correction you apply, the more distortion you get. This is a fundamental compromise, and it isn't an argument against keystone correction.
What I need from the keystone function – apart from a fix of the malfunction – I've listed here.
If you're happy with Capture One's keystone tool, that's fine. But, as must be clear by now, it doesn't work as it's supposed to and many users aren't satisfied with it. These should be sufficient reasons for Capture One to fix and improve it.
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Use the Keystone tool sliders together with the grid that is displayed and the percentage remains as set by the preset.
For complex work that may be quicker anyway, especially since you will almost certainly need an aspect adjustment as part of the tweak.
Observing how the nearest equivalent features work in Affinity (and presumably Photoshop) the most direct equivalent to the C1 approach and intended functionality seems to have much the same approach albeit a mix between the points and lines and directly using the tool's sliders with a grid and seems to deliver much the same results. However one has to "Develop" the RAW file to a different file format before that sort of processing can be applied. But that is for the other thread since such an approach would move things on to a different era of scripting anyway.
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I want to encourage that you continue your great work, have a nice day!
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