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Some Help With Unsharp Mask  
User currently offlinep38Ace From United States of America, joined Jul 2009, 108 posts, RR: 0
Posted (6 years 2 weeks 3 days 11 hours ago) and read 6403 times:

Ok I need some understanding here. I have studied your editing guide and i am having some stupid issues that maybe you can help figure out. When getting ready to apply USM i bust out the magic wand and click on the sky. Some of the times the marching ants make a boarder around the AC. But most of the time I click on the sky and the marching Ants are all over the place. How do i fix that? I am beating my head on the desk as we speak.    The problem I am having is why I am limiting myself to the pics I take.

Also Is it correct to apply USM after you resize or should I apply to before i re size.... Thanks for your support

9 replies: All unread, jump to last
User currently offlinechuck9941 From United States of America, joined Sep 2005, 200 posts, RR: 0
Reply 1, posted (6 years 2 weeks 3 days 11 hours ago) and read 6393 times:

hold down the shift key and keep clicking away on the area you want to select until you get what you want. and/or adjust the sampling size on the toolbar at top.

Oh, it's a big pretty white plane with red stripes, curtains in the windows and wheels and it looks like a big Tylenol.
User currently offlinesovietjet From Bulgaria, joined Mar 2003, 2732 posts, RR: 15
Reply 2, posted (6 years 2 weeks 3 days 11 hours ago) and read 6393 times:
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Apply after resize. To avoid them being all over the place raise the tolerance a bit. I usually use a value of 10.

User currently offlineJohnKrist From Sweden, joined Jan 2005, 1453 posts, RR: 4
Reply 3, posted (6 years 2 weeks 3 days 10 hours ago) and read 6361 times:

If you click the sky with the magic wand, it does just that, it selects the sky, or rather all pixels that it thinks is the same as the one you clicked. But, you don't want to sharpen the sky, so you need to inverse the selection (Select->Inverse).
I don't use the magic wand, it's a blunt tool. Use the Quick Selection Tool, it's easier to pick exactly what you want by using different brush sizes, magic wand picks what it thinks you want. Hold shift to enlarge the selected area, and Alt to decrease it.

5D Mark III, 7D, 17-40 F4 L, 70-200 F2.8 L IS, EF 1.4x II, EF 2x III, SPEEDLITE 600EX-RT
User currently offlinestevemchey From United States of America, joined Feb 2009, 372 posts, RR: 0
Reply 4, posted (6 years 2 weeks 3 days 9 hours ago) and read 6317 times:

+1 for the Quick Selection Tool

The Magic Wand works to some extend when you have a completely blue sky and the aircraft has no blue in it. But if you have a picture of an aircraft on the ground, you have almost no luck using the Wand.

User currently offlinep38Ace From United States of America, joined Jul 2009, 108 posts, RR: 0
Reply 5, posted (6 years 2 weeks 3 days 9 hours ago) and read 6303 times:

Quoting stevemchey (Reply 4):

What would you select?

User currently offlineViv From Ireland, joined May 2005, 3142 posts, RR: 23
Reply 6, posted (6 years 2 weeks 3 days 7 hours ago) and read 6241 times:

Quoting p38Ace (Reply 5):
What would you select?

The Magnetic Lasso. Just draw with it around the aircraft outline.

Nikon D700, Nikkor 80-400, Fuji X Pro 1, Fujinon 35 f/1.4, Fujinon 18 f/2
User currently offlinep38Ace From United States of America, joined Jul 2009, 108 posts, RR: 0
Reply 7, posted (6 years 2 weeks 3 days 6 hours ago) and read 6223 times:

Again thank you very much....

User currently offlineJid From Barbados, joined Dec 2004, 981 posts, RR: 25
Reply 8, posted (6 years 2 weeks 1 day 7 hours ago) and read 6009 times:

Using the wand to select things for sharpening is a very inefficient way to make a selection. Do a search for edge sharpening, find a method that works best for you then turn it into an action.


G7EPN is back after 15 years! Operating all Bands 80mtrs -> 70cms QRZ DX
User currently offlineiamlucky13 From United States of America, joined Aug 2007, 268 posts, RR: 0
Reply 9, posted (6 years 1 week 4 days 11 hours ago) and read 5862 times:

Just a related tip that I know you can do in GIMP, and assume in Photoshop, too - in the GIMP there's a setting with the magic wand called threshhold (I think it's the same as what sovietjet called tolerance) that lets you change the value difference between the pixel you click on and those that will be selected.

It's still a very imperfect method, but this does give you a little more control.

Also, I prefer to do my sharpening on a copied layer and use the selection I make to create a layer mask rather than working directly within a selection.

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