Author Topic: use CTRL-A autostretch more generally  (Read 1962 times)

Offline jamesRC

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use CTRL-A autostretch more generally
« on: 2018 March 31 12:37:51 »
Hi.

Hope I'm not being simpleminded, but-
The auto-stretch, that is CTRL-A, does a great job of stretching a linear image. It does not change the linearity of your source image, which is why its used. It lets you stretch the image without really stretching the image  ^-^ That way one can see the effect of an operation without changing the source image.

Anyway, auto-stretch does a very good job of stretching, better and faster than some of my efforts :o. I'd love it if there was a process with a general-purpose stretch duplicating auto-stretch, but with permanent results.

Is this possible or likely?

Thanks.
James

Offline pfile

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Re: use CTRL-A autostretch more generally
« Reply #1 on: 2018 March 31 14:21:11 »
it is already possible. set the STF process to track the frontmost image by clicking the check mark on STF, then activate the window that has the STF applied.

then drag the triangle from the STF process window to the HistogramTransformation interface window, in the bottom pane where HTs triangle is. not on top of the triangle and stuff but to the right of it. the STF properties will then be copied to the HT process. then apply the HT process to the image you want to stretch. it will then turn white, because the HT is done plus the old STF is also applied. just turn off the STF on that image and all will be well.

rob

Offline johnpane

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Re: use CTRL-A autostretch more generally
« Reply #2 on: 2018 March 31 14:42:23 »
That procedure is performed often enough (on copies of images for masking if not for the main image) that it would be nice to have a one-click or one-key shortcut.

Offline jamesRC

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Re: use CTRL-A autostretch more generally
« Reply #3 on: 2018 March 31 19:01:08 »
pfile,

Thank you for the note. In fact I've read of the process you describe, but it wasn't clear what it was all about. Now I know :-)

As johnpane points out, it would be nice if it were able to do this with a button or key press. That's just a suggestion. Got any old unused keypresses lying around ::) maybe CTRL-SHIFT-A?