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Logo White/Transparent Background

Aug 24, 2010, 02:46
Post: #1
Logo White/Transparent Background
Hi everyone, i'm new here, and I'm very new to GIMP. I just had a question i hope to have answered...
I want to take the logo from the image below, (the part of the image "ZELDA" with all the squiggly purple designs around it) and I want make it into just a white background with the logo on top of it. So, in short, i want to remove the picture with the buildings and stuff from the back of it, and just keep the straight logo with a white/transparent background.

Now, since i am very new to GIMP, I was wondering if someone could explain the simplest way possible of accomplishing this task, because honestly, i don't know where to start. Any help will be greatly appreciated! Thank you so much!

[Image: legend-of-zelda-valley-of-the-flood-the-...90-293.jpg]
The image^

[Image: NDS_Zelda_Logo.jpg]
This is an example of how i want it to look after its done. ^ Obviously, it will be the other logo instead of this one.
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Aug 24, 2010, 04:15
Post: #2
RE: Logo White/Transparent Background
I'd say the most precise way would be to use the pen tool to crop out just the logo.

[Image: toty1.png]
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Aug 24, 2010, 05:16
Post: #3
RE: Logo White/Transparent Background
Hmmmm.... yeah, I guess that seems like the best way, although I was hoping not to have to due to the time it'll take. I'll post my results when i finish.
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Aug 24, 2010, 07:12
Post: #4
RE: Logo White/Transparent Background
(Aug 24, 2010 02:46)BlackRose926 Wrote:  Hi everyone, i'm new here, and I'm very new to GIMP. I just had a question i hope to have answered...
I want to take the logo from the image below, (the part of the image "ZELDA" with all the squiggly purple designs around it) and I want make it into just a white background with the logo on top of it. So, in short, i want to remove the picture with the buildings and stuff from the back of it, and just keep the straight logo with a white/transparent background.

Now, since i am very new to GIMP, I was wondering if someone could explain the simplest way possible of accomplishing this task, because honestly, i don't know where to start. Any help will be greatly appreciated! Thank you so much!

[Image: legend-of-zelda-valley-of-the-flood-the-...90-293.jpg]
The image^

[Image: NDS_Zelda_Logo.jpg]
This is an example of how i want it to look after its done. ^ Obviously, it will be the other logo instead of this one.
Gimp has a "foreground extraction tool" (the two heads next to the scissors).

But in your case, given that what you want to extract is a quite different color than the rest of the picture, I would do it as follows:

1) duplicate the layer
2) add a layer mask using the "blue" channel
3) go into layer mask edition mode
4) start the treshold tool
5) adjust the treshold value so that only the blue ornaments shape appears. You can refine using eraser/paint brush. This will produce a layer where only this part of the image shows.
6) repeat 1-5 with another layer and the red channel for the ZELDA part
7) duplicate one more layer and do a minimal rectangular select on the "the legend of", then "grow" the selection some pixes an,d "feather" it of the same amount
8) repeat with another layer for "valley of flood"

Then you final logo is the mix of all these layers (top to bottom: small text, ZELDA, ornaments).

I recommend to keep the logo on "transparent" background (use as .PNG, more suited for this than JPG).

Keep the .XCF (Gimp native format).

Now answering your questions on
https://Gimp-Forum.net
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Aug 24, 2010, 11:35
Post: #5
RE: Logo White/Transparent Background
Wow, this is new to me, can you make a video tutorial of it....please

check out my tutorials on http://premdesigns.blogspot.com/
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Aug 24, 2010, 12:27
Post: #6
RE: Logo White/Transparent Background
This is new to me too (As my logo shows, i use Gimp mostly to adjust my photos...)... I just figured it up (i started understanding layer masks not so long ago), only did a few basic tests to confirm it works in this case. The big ideas there are:

- a layer mask is an indication of transparency for the layer it applies to, that you can create by any means, and edit exactly like you could edit the layer image.

- that very picture is using very specific colors (and, forytunately close to fundamental colors) for most of the stuff we want to extract, so working on the color channels does a pre-selection.

The rest is fairly basic.

PS: for a long while I had "sandbox" image made of a layer of blue and a layer of yellow. I learned many things by just playing with it, doing "what if" tests...

Now answering your questions on
https://Gimp-Forum.net
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Aug 25, 2010, 01:18 (This post was last modified: Aug 25, 2010 02:11 by BlackRose926.)
Post: #7
RE: Logo White/Transparent Background
Thanks for the process ofnuts! But i am not quite sure how to do it. I just started using GIMP, so I'm a little comfused. I guess my first question would be, how do i add a layer mask using the blue channel?

EDIT: If this is not a very time consuming process, do you think you could do a few of the steps to show me how it looks?
And also, i have been working on taking out individual pixels to leave just the logo, and its looking kind of sloppy, so i
will definitely be relying on this other method, haha
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