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remove back ground

Sep 12, 2014, 17:01
Post: #1
remove back ground
hi i would like to learn how to remove text from a back ground image and then make the text transparent like a clearlogo.png , thanks for your advice
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Sep 12, 2014, 17:52
Post: #2
RE: remove back ground
Need a bit more information about the image you are working on.
If possible post the file.

Removing the background depends on how complicated the backgound is. Single colour is easy.

Then when you say make the text transparent, what do you mean? Fill the text with an image or pattern? or...?
A search for clearlogo.png just comes up with text on a transparent background. Is that what you want?

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Sep 13, 2014, 08:33 (This post was last modified: Sep 13, 2014 12:11 by gizmo.)
Post: #3
RE: remove back ground
hi thanks for your reply , what i am doing is creating titles for movies on xbmc , i have tried to do a couple with photoshop but they dont look right , what i wold like to do is to take the title from a dvd cover and create a clearlogo.png file for xbmc thanks
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Sep 13, 2014, 10:01 (This post was last modified: Sep 13, 2014 10:01 by rich2005.)
Post: #4
RE: remove back ground
Even with that extra ref to xbmc still not sure what a clearlogo.png is

http://forum.xbmc.org/showthread.php?tid=71954
http://mediabrowser.tv/community/index.p...entry21481

So assuming it is what it says, a transparent background, very easy with a single colour background
Color menu -> color to alpha : white is the default, so for your images nothing to change.

Here is a before and after combined screenshot and the dialog you see.
http://i.imgur.com/dzeAuA5.jpg

But those images of yours are horrible, the large one must have been scaled up some time from a smaller image. You can see small areas between the letters that will need cleaning up.

The small image is worse. There are many artifacts around the lettering.

http://i.imgur.com/WiKXprC.jpg

A way out? maybe better images to start with, or some careful erasing at the pixel level.

Then make sure you export as a png which will preserve the transparency.

I still make DVD's although not so many these days. For menus and printing disks, I sometimes steal an image from the video, but text is always new using Gimp or Inkscape.

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Sep 13, 2014, 10:55
Post: #5
RE: remove back ground
I would prefer to create a new logo, trying to reproduce the original.
I used the Select By Color Tool, in the attached image, but as expected, there is very jagged border. (Although this logo provided there is already plenty of jaggies)
   

See post http://gimpforums.com/thread-proper-subj...42#pid8042
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Sep 13, 2014, 12:11
Post: #6
RE: remove back ground
[attachment=3976]thanks for your reply ok i will try and explaine what i want to do , i am running xbmc and i have added my dvd movies from a external hard drive and used artwork downloader to find the artwork to the movies but it has not found all artwork especilly titles . clearlogo . we have even tried yammm as well so i have been advised to make my own up , i have tried photoshop to make a transparent background so i have only got the title of the movie and you have sen the results but these images are suppose to be hi res , i have taken a picture of what i am trying to do . is there another way to create text in gimp so it will look like the pictues i have shown you thanks
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Sep 13, 2014, 12:21
Post: #7
RE: remove back ground
What size background image are you using?

Do the images background / titles have to be separate as that previous link?
http://mediabrowser.tv/community/index.p...entry21481

Not difficult from scratch, but more than just removing a background. You will need to know a bit about creating text effects.

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Sep 13, 2014, 12:27
Post: #8
RE: remove back ground
thanks for your reply the size is around 800 x 310 , the titles have to be seperated from the background , eg: [attachment=3977] , with text effect this is why i am trying to take the text from a hi res dvd cover for the title logo thanks
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Sep 13, 2014, 12:41
Post: #9
RE: remove back ground
(Sep 13, 2014 12:27)gizmo Wrote:  thanks for your reply the size is around 800 x 310 , the titles have to be seperated from the background , eg: , with text effect this is why i am trying to take the text from a hi res dvd cover for the title logo thanks

A quick couple of lines of text, while you were replying. Not difficult but you do need to know how Gimp works.

   

For making text effects non manually
first try the gimp standard scripts File menu -> Create -> logos
and
visit the gimpchat forum http://www.gimpchat.com
and their collection of scripts http://gimpscripts.com/

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Sep 13, 2014, 12:54
Post: #10
RE: remove back ground
thanks for your reply is there a tut on how and where to start in gimp for making text , can the made up text look like the orignal ? i am running gimp 2.6 i have tried 2.8 but the tool box came up once and not seen it since , with the scripts i have no idea sorry all new to me thanks
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Sep 13, 2014, 12:56
Post: #11
RE: remove back ground
(Sep 13, 2014 12:27)gizmo Wrote:  thanks for your reply the size is around 800 x 310 , the titles have to be seperated from the background , eg: , with text effect this is why i am trying to take the text from a hi res dvd cover for the title logo thanks

That is a more the sort of image to work with. To remove the background from that.
Add an alpha channel to the image, jpegs do not support transparency.
Use color select tool in add mode to select the text.
You might find that you need to grow the selection by a pixel.
The bauble either carefully go round it with the freeselect tool in add mode or I used the quick mask to "paint" a selection.

Once happy with the selection, invert the selection, and cut it.
attached my attempt


Attached File(s) Thumbnail(s)
   

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Sep 13, 2014, 13:01 (This post was last modified: Sep 13, 2014 14:12 by rich2005.)
Post: #12
RE: remove back ground
(Sep 13, 2014 12:54)gizmo Wrote:  thanks for your reply is there a tut on how and where to start in gimp for making text , can the made up text look like the orignal ? i am running gimp 2.6 i have tried 2.8 but the tool box came up once and not seen it since , with the scripts i have no idea sorry all new to me thanks

Our posts are getting crossed, nothing wrong with Gimp 2.6 but you will find it easier to use Gimp 2.8

Give me an hour and I will make a demo for removing the background of your image using Gimp 2.6 (if my VM is working Wink )

edit:
A quick demo using your image and Gimp 2.6


http://www.youtube.com/watch?v=kzbFtbZhykA&hd=1

hope it helps.

Edit2:
Quote: i have tried 2.8 but the tool box came up once and not seen it since , with the scripts i have no idea sorry all new to me thanks

If you still have Gimp 2.8 installed. Find the folder C:\Users\your-id\.gimp-2.8 and delete it. That puts Gimp 2.8 back to 'as-just-installed' state. Start it running, leave it well alone until it finds all the fonts etc and it starts up in default 3 window mode. Use the Window menu -> single window mode for a single window.

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Sep 13, 2014, 14:37
Post: #13
RE: remove back ground
(Sep 13, 2014 12:56)rich2005 Wrote:  
(Sep 13, 2014 12:27)gizmo Wrote:  thanks for your reply the size is around 800 x 310 , the titles have to be seperated from the background , eg: , with text effect this is why i am trying to take the text from a hi res dvd cover for the title logo thanks

That is a more the sort of image to work with. To remove the background from that.
Add an alpha channel to the image, jpegs do not support transparency.
Use color select tool in add mode to select the text.
You might find that you need to grow the selection by a pixel.
The bauble either carefully go round it with the freeselect tool in add mode or I used the quick mask to "paint" a selection.

Once happy with the selection, invert the selection, and cut it.
attached my attempt

thanks for your reply what do you mean by this need to grow the selection by a pixel.? i cannot see where quick mask is to paint a selection thanks
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Sep 13, 2014, 14:47
Post: #14
RE: remove back ground
see the video http://www.youtube.com/watch?v=kzbFtbZhykA&hd=1

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Sep 13, 2014, 16:09
Post: #15
RE: remove back ground
thank you for your reply and video i do like the template you used it looked familiar lol
this is my attempt not sure if it looks ok or not have not tested in xbmc thanks

[attachment=3983]
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