Hello everyone

Let me start by saying my editing ability is minimal at best.  Big thanks to anyone who helps a rookie out.  Hopefully this stuff is easy for y'all out there.

I am trying to take a JPG of a trail map and extract everything with the exception of the Trail and lift lines.  So far I have used "Selection by Color Select" and then been able to extract a majority of the lines.  This is where I run into a few problems that I feel like some better knowledge of the GIMP tools would help.  So here are the problems I am wrestling with.

1.  The color select also grabs a lot of random pixels of the same color resulting in dots all over.  Is there some way to filter these out?

2.  The lines it does grab are pretty good but on the edges where the lines might have a SLIGHTLY different color , those lines get fuzzy.  Is there some sort of automated process I can use to make the lines that were grabbed more consistent and more bold (like the example)?

I can't post my current progress at the moment but I was hoping to get the discussion started.

Thanks so much for the help.

TJ

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hey guys

i’ve been using gimp (2.8 i think idk) on a chromebook. i want to paste different things to other images, but when i do this to anything transparent the transparency is completely removed and turns the transparent parts to black.

someone please tell me how to fix this because it is EXTREMELY DIFFICULT TO WORK WITH TEXTURINHG WITH THIS ISSUE

thanks
fahrenheit

I have a high resolution and kind of large picture.  It is a panorama  made from several pictures.

I'm trying to use the foreground select to turn the background to alpha.  I thought I had it done, and when I went to preview it a message box popped up saying calculating unknown pixels and the hard drive was active for quite a while and then GIMP crashed.

I think this may have been because the background was basically the sky and I just put my foreground select lines along the edges of where the background and the foreground intersected.  However, it did mask the photo and allow me to use the brush tool, etc.

I thought I'd see if I could do it in stages and do just one corner, but I see the mask extended beyond where I had my Foreground Select lines.  So it doesn't look like that is an option.  I also tried a different picture and did connect all the foreground select lines and had brushed only part of the picture and then saved it.  It  did save, but I could resume editing where I left off.  Maybe I can but I am missing something.

I guess I could use Foreground Select on the individual pictures the panorama is stitched together from.

I'm wondering if there are any good techniques for doing this?

TIA

for what it's worth, I'm running GIMP 2.10.20 on a new install of Linux Mint 20. I installed the new GIMP because I couldn't find the image tool menu on the earlier version when I tried to use the fuzzy select tool.  It is the menu that has feather edges, mask and some other settings.  I couldn't find it on the new version either.  Maybe I just don't know how to display it.

MathMap - A Gimp plugin see: https://www.complang.tuwien.ac.at/schani/mathmap/ A new compilation tested in 'buntu 18.04 / 20.04 / Mint19 / 20 regular Gimp and Gimp-Appimage 2.10.x

Installation:
Download the zip from: https://u.pcloud.link/publink/show?code=...yMfS1SkfGy
Unzip and put the folder mathmap in  ~./GIMP/2.10/  and the plugin mathmap-full in  ~./GIMP/2.10/plug-ins (or the equivalent  ~./GIMP-Appimage/2.10/... )

There are dependencies which are probably not installed. In a terminal run

Hi
I am not expecting very professional work, just want to do it for fun. So I hope the
steps aren't too complicated...

I want to make an image of dinosaur walking around in the background of a place.


As a result, I think I'll first need to create a GIF image of dinosaur walking around.


And then, to put the GIF image on top of a static image (the place)

Would anyone suggest me the simplest way to do so??

Just for fun, not expecting too detailed.... Thanks

Effects such as Softglow and Bloom do not quite make it. The Akira Fuji effect selectively blooms only the bright stars in an astrophoto while leaving the fainter stars unaffected. This makes the constellations stand out easily. Any tips or plugins on how to make it work in GIMP?  Tried SBLUR in IRIS but that too it just does do it. 

https://amazingsky.net/2011/02/21/fuzzy-constellations/

Martin

Hi, is there any method to preview a GIF before exporting it to a file ?  Also, is there any method transition effects like " dissolve ", " fade " etc while creating GIF ? I am hoping that someone has written a script for the same. Thanks.

If one has taken a picture with the vertical lines ok and the horizontal lines not parallel, then the 'Align to path' (ob-align.py) plugin can help : https://www.gimp-forum.net/attachment.php?aid=275 

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I am trying to repair this badly damaged b&w old photo. I have tried heal and clone tools , but they dont help much. The dress is supposed to be off white color. But using paint brush is ok, but when I change mode to overlay or softlight, the damages reappear.
I also trie wavelet decompse, but this also did not help.

Can you please suggest the best way to repait this photo. 
I have left out the face.

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Hello,

I have a selection set and I want to fill it with the paint tool. I want the edges to be smooth so I turn on antialiasing:



But as you can see from the image, the edges still seem fully pixelated.

What am I doing wrong? How do I get antialiasing working with the paint tool?