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05/28/2006 03:46:04 AM · #1 |
| What a fantastic difference it makes. I can't believe I haven't been using this tool all along. Obviously I'm a PS (actually GIMP) noob I'm learning slowly. Here is a shot I took today that I applied USM to. Comments and suggestions appreciated. PIC |
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05/28/2006 03:59:24 AM · #2 |
You did good. It's very easy to over-do it but it is undetectable in your flowers. You'll know you've gone too far if you can see halos around things which have a high contrast edge.
Brett |
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05/28/2006 04:11:53 AM · #3 |
| Glad to know I did good. Thanks for the critique. |
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05/28/2006 04:17:03 AM · #4 |
oh yeah, looks real good.
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05/28/2006 06:20:30 AM · #5 |
| Looks like Bougainvillea blooms - they are nice. |
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05/28/2006 08:30:22 AM · #6 |
Looks great!
There are many other ways of doing it too. Here's one method I use often since I feel it gives me more control:
NOTE: You cannot use this method in basic editing challenges.
1) Press the "D" key once to set the colors to black and white with white on top
2) Create duplicate layer (Layer | Duplicate Layer)
3) Choose high pass filter (Filter | Other | High Pass...)
4) Set the radius somewhere between 3 and 6 depending on the amount of detail you wish to sharpen. I often use 3.7.
You will now have 2 layers. The top layer will look grey.
5) Set blending mode (Click on the blending mode in the layer dialogue box and scroll through the blending modes from 'overlay' to 'hard mix' to see and set the effect of the sharpening).
6) Add layer mask (In the layer dialogue box; hold down ALT key and clik the grey sqaure with the white circle in it).
7) Select the paintbrush and paint the areas you want to sharpen.
8) If you wish to 'unsharpen' an area you painted sharp, you can swap black and white and paint it back to the way it was.
9) Finally; use the opacity slider on the top layer to control the sharpening even more
With this method you can easily sharpen for instance just the line around a birds eye or certain feathers. You can also create one layer for each area you like to sharpen differently.
Hope this helps to explore other ways. There are many others but this one works well for me.
Try it and you'll get amazed of the results unless you overdo it. |
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05/28/2006 08:45:23 AM · #7 |
| That's a great tip TrollMan - thanks! |
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05/28/2006 03:43:37 PM · #8 |
| Sounds like alot Trollman but I'll give it a shot. I haven't tried working with different layers and such yet. I'm not quite sure how all that works yet. |
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05/28/2006 04:33:47 PM · #9 |
So. Let's say someone was to do USM the way it happens. With adjustment layers and whatnot. Would it be illegal in Basic?
PSP has a dedicated hi-pass sharpening tool similar to USM as found in PS.
Is using the high-pass sharpening tool (PSP) illegal in Basic? It merely automates a manual procedure with user interface.
Message edited by author 2006-05-28 16:35:01. |
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05/28/2006 05:08:51 PM · #10 |
Originally posted by A4wheelin:
What a fantastic difference it makes. I can't believe I haven't been using this tool all along. Obviously I'm a PS (actually GIMP) noob I'm learning slowly. Here is a shot I took today that I applied USM to. Comments and suggestions appreciated. PIC |
I can't remember if the GIMP allows this or not, but I think it does.
USM "sharpens" by adding white pixels on one side of a border and black pixels on the other. Thes can be separated into two different layers and adjusted separately with these steps:
1-Flatten image and duplicate flattened layer
2-Apply USM to duplicate layer. Make is slightly greater than you want it to be.
3-Duplicate USM layer.
Now you have three total layers where two layers have the same USM applied. To separate the black and white USM pixels into two layers change the layer mode from "normal" to "darken" for one USM layer and from "normal" to "lighten" for the other.
Now, adjust the opacity of each USM layer separately to fine tune sharpening. I've found that sharpening tolerates a lot more "black" sharpening than "white" so the opacity of the white pixel layer is lowered more than the black pixel one.
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05/28/2006 05:23:15 PM · #11 |
Originally posted by stdavidson:
USM "sharpens" by adding white pixels on one side of a border and black pixels on the other. Thes can be separated into two different layers and adjusted separately with these steps:
1-Flatten image and duplicate flattened layer
2-Apply USM to duplicate layer. Make is slightly greater than you want it to be.
3-Duplicate USM layer.
Now you have three total layers where two layers have the same USM applied. To separate the black and white USM pixels into two layers change the layer mode from "normal" to "darken" for one USM layer and from "normal" to "lighten" for the other.
Now, adjust the opacity of each USM layer separately to fine tune sharpening. I've found that sharpening tolerates a lot more "black" sharpening than "white" so the opacity of the white pixel layer is lowered more than the black pixel one. |
Just tried this. Works nicely. I didn't know that USM worked in that manner, but now it makes a lot of sense. |
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