[Gimp-user] How to remove background of shadowed and/or low-resolution and/or more complex images

2011-05-24 Thread Sophoklis Goumas
Hello everyone and especially to the gimp-user mailing list regulars. I am trying to create a network infrastructure diagram for where I work with Dia. (In fact it will actually help me much more than anyone else, but that's not the subject.) For this I am putting into the diagram, images of:

Re: [Gimp-user] How to remove background of shadowed and/or low-resolution and/or more complex images

2011-05-24 Thread Stefan Maerz
So, my question is how could I achieve the desired result for this and such images? How would do you work out similar or even more advanced cases? Hi Sophoklis, There are a few good methods to use. For cutting out a logo, sometimes using ColorsColor to Alpha with the background color

Re: [Gimp-user] How to remove background of shadowed and/or low-resolution and/or more complex images

2011-05-24 Thread peter kostov
On 05/24/2011 11:06 PM, Stefan Maerz wrote: So, my question is how could I achieve the desired result for this and such images? How would do you work out similar or even more advanced cases? Hi Sophoklis, There are a few good methods to use. For cutting out a logo, sometimes using

Re: [Gimp-user] How to remove background of shadowed and/or low-resolution and/or more complex images

2011-05-24 Thread Stefan Maerz
Another option is painting on a layer mask - it is like the eraser tool, but much more convenient to rework and correct. Good suggestion. Though I just found out about a new eraser tool feature by accident, so I thought I'd share. If you erase (with the eraser tool) an area and want it back,

Re: [Gimp-user] How to remove background of shadowed and/or low-resolution and/or more complex images

2011-05-24 Thread Mikel Garai
Hi! In this situations what I do is: - select by either free tool or the scissors (depending on the case is easier with one or the other) - create a layer mask from the selection - adjust the little things than were not perfect after that and optionally to simulate the antialias and avoid the

Re: [Gimp-user] How to remove background of shadowed and/or low-resolution and/or more complex images

2011-05-24 Thread Ofnuts
On 05/24/2011 10:23 PM, peter kostov wrote: Another option is painting on a layer mask - it is like the eraser tool, but much more convenient to rework and correct. But it is almost impossible to achieve crisp edges this way. For hard and crisp edges it may be better to use the pen tool and

Re: [Gimp-user] How to remove background of shadowed and/or low-resolution and/or more complex images

2011-05-24 Thread Elwin Estle
When painting on a layer mask, if you use a dynamic brush created in the brush editor, you can set up in your preferences to allow you to resize and change the brush hardness on the fly while you are painting. I have mine set up so that pressing shift while scrolling the mousewheel