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Additional adjustments to a selected (by brush) area

332 Views 8 Replies Latest reply: Nov 27, 2012 11:52 AM by Frank Caggiano RSS
notanthony123 Calculating status...
Currently Being Moderated
Nov 25, 2012 11:25 AM

I cannot find the answer to this -


What do you do in Aperture if you want to apply different adjustments to the same selected area?


I mean the area selected by brushing. I know there is no conventional selection tool.


Do you really have to (sometimes painstakingly) brush in the exact same area for each different adjustment?


Any help please?

iMac (27-inch Mid 2011), OS X Mountain Lion (10.8.2)
  • léonie Level 8 Level 8 (46,560 points)
    Do you really have to (sometimes painstakingly) brush in the exact same area for each different adjustment?


    Yes, you do.

    Unless you can use one of the predefined selections for the brush range, like shadows, midtones, highlights. And it helps to turn on edge detection.


    The masks for the brush range are stored in the user library: Each time you brush, a mask like this will be created.

    ~/Library/Application Support/Aperture/Adjustment Preset Brushing/2/2y/2yUD8JFfTqaTVtuztg9h%Q.tiff


    If you can find the mask you created, you could try to use it again for the next brushing, but that would be a risky operation.




  • léonie Level 8 Level 8 (46,560 points)
    Canon EOS 550D images which I have enhanced are only 72 dpi/ppi


    Where do you see this? After exporting the enhanced version? What is the export preset that you are using? By default Aperture uses the 72 dpi setting on exporting. If you want a different dpi setting, you need to edit the export preset. But have you checked the pixel size? Even with a lower dpi setting you should get exactly the same resolution and pixelsize as the original image file has, if you export with an "original size" preset.

  • John Purlia Calculating status...

    You may want to take a look at a somewhat detailed article I wrote on this subject for my blog, including step-by-step instructions on how to copy a brush mask from one adjustment to another.


    Aperture brushes unmasked


    Hope this helps!

  • Kirby Krieger Level 6 Level 6 (11,570 points)

    It's just a setting.  It has no bearing on the actual data.  Some programs use it to determine something called "the logical inch".  Aperture does not.  You can attach any DPI setting to files you create by exporting from Aperture.  It still doesn't really mean anything, and can be safely ignored.  Neither DPI nor PPI measure a digital image's quality.  If you print an file at 300 PPI, it is likely to look, under normal examination, as good as the file can look.  If you print a file at 4 PPI, it will surely look pixelated under normal examination.  Note, first, that the file has not changed.  PPI can be a measurement of something we associate with the quality of a _print_.  (Again, it has no bearing on the quality of an image file.)  Note, second, that the 4 PPI print is 75 times larger than the 300 PPI print.  Perhaps it's a billboard.  Seen from the distance billboards are seen, it is probably pretty sharp.

  • Frank Caggiano Level 7 Level 7 (22,830 points)

    notanthony123 wrote:


    but I don't think I am computer savvy enough to risk tinkering with files not knowingly generated by me.

    That may be true but you'll never gain the knowledge if you don't give it a try.


    And while you won't want to experiment with your actual library you can always create a new library just for test purposes. Add a few images to it and then try out different things you'd be amazed at how much you can learn when you're not afraid of messing up your real work.




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