Posted by
Michael Schmid on
Mar 06, 2014; 6:30pm
URL: http://imagej.273.s1.nabble.com/Revert-Strg-R-everything-fine-only-a-thought-tp5006798p5006804.html
Hi Rainer,
as far as I can say, 'Revert' in principle reads form the hard drive. But actually, files read recently are usually in the memory, either in the hard drive's cache or the disk cache of the operating system. So, unless the file is very big or there is a lot of disk activity, reading a file the second time will hardly access the hard disk and it will be much faster than reading it the first time.
For the feature you suggested, you would need a third command, to store the present state. I think that this should not be done automatically on loading an image, as it may occupy a lot of memory for large images.
A simple alternative:
For trying things, I often duplicate an image (just press shift-D), and work on the copy. If I don't like the result of the test, I discard the copy and create a new copy.
Michael
________________________________________________________________
On Mar 6, 2014, at 13:12, Rainer M. Engel wrote:
> I often use the revert option while testing different filter and settings.
>
> In this approach it speeds things up to record settings and rearrange
> them via macro.
>
> Does the Revert function reload the file from hard drive?
>
> I would think that a "Store" function to store a certain status of an
> image would enhance this philosophy.
>
> Reload..
> An Image is restored to its initial state by reading the source file
> again from its location.
>
> Revert..
> An image is restored to its first state after opening it or from a later
> stored/updated initial state.
>
> Maybe a feature request or only a thought..
>
> Interested to hear about your thoughts.
>
> Best regards,
> Rainer
>
>
> --
> Rainer M. Engel, Dipl. Digital Artist
> scientific|Media GbR
> Pichelsdorfer Str. 143
> 13595 Berlin
>
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