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Feather entire image?

Jul 14, 2013, 12:02
Post: #1
Feather entire image?
OK - so i can crop and feather a selection of an image, but what i wanted to do was apply a feathered edge to an entire image so that i could drop it into a word doc and it would look a bit smarter.

I've been trying to do it by -

'Select > All ' then ' Select > feather ' applying the amount of feather (i did an inch just to make sure).

But it made no difference - i tried exporting this as a JPEG to see if it came up then but it still didn't make a difference...

I'm sure it's something simple but i'm not sure what!

thanks.
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Jul 14, 2013, 12:32 (This post was last modified: Jul 14, 2013 12:32 by rich2005.)
Post: #2
RE: Feather entire image?
Very much depends what you want to do & how much effort you want to expend.

Simplest is Filters -> Decor -> Fuzzy Border
or
Start thinking about making a layer mask. You can apply a gradient to the layer mask to fade out the image.

A bit on the old side (Gimp 2.6) but the principles are the same.
http://www.youtube.com/watch?v=4JJVPGF7_MA all about edge masks.

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Jul 14, 2013, 12:53
Post: #3
RE: Feather entire image?
this is an alternative using a layer mask

Add a layer mask - white - full opacity.
Use the gradient tool ofn the layer mask.
select FG to transparent but reverse the direction so that it is going from transparent to FG (black)
select bi-linear as the shape
bump the offset right up, 90-ish

Use the gradient tool twice on the layer mask, once center to edge then again center to other edge.

[Image: h2VZjPt.jpg]

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Jul 14, 2013, 13:22
Post: #4
RE: Feather entire image?
Hi rich - this works although it's quite tricky to make sure I get it exactly in the centre each time to draw the line (with the gradient tool) to ensure an even fade around all edges.
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Jul 14, 2013, 13:26
Post: #5
RE: Feather entire image?
(Jul 14, 2013 12:42)ofnuts Wrote:  "Feather" applies to the selection, so that's not enough. If you want to make the borders fade:

- Select/All
- Select/shrink (about half the "fade" width)
- Select/Feather (about half the "fade" width)
- Select/Invert
- Edit/Clear or [delete]

JPEG Format doesn't support transparency, the transparent bits will be save using the background color (white, usually), which may be enough for your purpose.

OK - this worked. If I use a PNG file (which retains transparency...? ) will that transparency apply within a word doc or just if reimported to GIMP

thanks
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Jul 14, 2013, 13:27
Post: #6
RE: Feather entire image?
nuts - is there anyway to do this process to a batch of photos? Or does it have to be one at a time?

cheers
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Jul 14, 2013, 19:26
Post: #7
RE: Feather entire image?
Quote:Hi rich - this works although it's quite tricky to make sure I get it exactly in the centre each time to draw the line (with the gradient tool) to ensure an even fade around all edges.

That is what the guides are there for. Image menu -> guides

Batch process a load of images.
Obviously Imagemagick if you can make a batch file.

Something with a GUI.
I was hoping BIMP and the 'quick-n-dirty' method of selecting the entire image then stroking the selection with a fuzzy brush + eraser tool would be possible. Alas not.

Alternatives with a GUI. XNViewMP
http://www.xnview.com/en/xnviewmp/#downloads

You still have to make a mask. Does not have to be the same size as the image. Black for transparency.
example: http://i.imgur.com/ZC9MLr6.jpg
Then a few screenshots of the XnViewMP dialogs. http://i.imgur.com/IK6xSY0.jpg
Does not break any speed records, 40 secs for 4 images.
and a result opened up in Gimp http://i.imgur.com/sK7OGyv.jpg

so far thats the best I can do, maybe someone else has other ways.

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Jul 15, 2013, 05:03
Post: #8
RE: Feather entire image?
Hi, Sorry I'm a little late to the conversation but you maybe could used a square gradient in a layer mask for another way to make a fuzzy border. It would be a little more even than bi-linear (sorry also if square gradient was mentioned, there's a lot of posts)

1. right-click layer : layermask white(full opacity)
2. gradient tool ; the default colors (bg...) shape: square
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Jul 15, 2013, 05:03 (This post was last modified: Jul 15, 2013 05:04 by iForStyle007.)
Post: #9
RE: Feather entire image?
the above post went here.
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