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  Convert xcf to psd (with paths)
Posted by: Iagmon - 04-16-2021, 09:43 PM - Forum: Other graphics software - Replies (5)

Hello there.

First post here, so I'm sorry if I've posted in the wrong section or something.

Anyway, I know I can export a .xcf file as a .psd file and open it in Photoshop. The problem is: when I open it, the layers are all there but the paths are gone.

Opening the recently exported .psd file in GIMP will yield the same results: layers but no paths, so I think the path info is deleted from the file.

Question: Is there a way to convert xcf to .psd without losing paths?

Thanks for the attention.

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  Select and bucket fill with python fu
Posted by: bozjaws - 04-15-2021, 07:31 PM - Forum: Scripting questions - Replies (1)

I'm trying to modify a script with the two basic commands: 
1.Select a free selection with a series of points
2.Fill that selection with the foreground at 75% opacity

To do command 1 I use the line:
pdb.gimp_image_select_polygon(image,CHANNEL_OP_REPLACE,3,[width/2.0,height/2.0,x0,y0,x1,y1])

The array at the end is filled with variables I define elsewhere. I try to test this in the python console on a file I've called test.xcf to see how I can expect the syntax to react. The line looks like 

pdb.gimp_image_select_polygon('test.xcf',CHANNEL_OP_REPLACE,3,[640,480,700,600,500,600])

But I get this error :Traceback (most recent call last):
  File "<input>", line 1, in <module>
TypeError: wrong parameter type

What Can I do? I assume I'm calling the image wrong but I'm not sure what to call it
--------------------------------------------------------
For command 2 I'm using:
pdb.gimp_edit_bucket_fill(drawable,BUCKET_FILL_FG,LAYER_MODE_NORMAL_LEGACY,75,0,FALSE,0,0)

I figure I can run this line in the console or in code and it should have the same effect: as long as there's a selection on the page then it'll just fill with the foreground. But when I test the syntax I'm met with:
NameError: name 'drawable' is not defined

So what do I call the selection then? I figure this should be simple but I'm just not sure what words I should use.

Additionally: The modifications I'm making to my script now call numpy in. Will this be an issue if I already have numpy installed on my machine, or do I have to specifically install it onto gimp?

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  ofn-brush-strokes-on-path
Posted by: Ofnuts - 04-13-2021, 09:02 PM - Forum: Extending the GIMP - Replies (34)

Adding an animation feature (each brush stroke on its own layer). Ending up being a major rewrite. Still have to update the doc before releasing in the wild.

   

For the above:

  • Find a Brush with foot steps (brush hose, alternating each foot)
  • Create a circular path
  • Apply the script to generate 30 strokes on a transparent background
  • Duplicate the image, shift the layers by one (top layer to bottom of stack)
  • Do that two more times, to have 3 images that are 1/2/3 steps behind
  • Use ofn-interleave-layers to combine them with 75%, 50% and 25% opacity to the first one
  • Export as (slow) animation

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Lightbulb Report on creating / updating scripts
Posted by: Krikor - 04-13-2021, 02:46 PM - Forum: Gimp-Forum.net - Replies (1)

Hi Ofnuts,

I noticed the creation / update on April 4th of this year of the ofn-select-layer-box. Is this thanks to the user error in the post https://www.gimp-forum.net/Thread-How-ca...n-photohop? pid = 22967 # pid22967.

I myself am not sure if all of your scripts I have are up to date or not. I would have to check almost one by one as to whether they are up-to-date or not, but for convenience and not having problems I don't do it.

It seems to me that here on the forum there is no topic that keeps us informed of these creations / updates.

There may be other ways, as there is a 'Get Updates' link on the downloads page. But I suppose that requires subscribing via email to some kind of service.

What do you think about posting a topic on this forum with current records about your creations / updates?

Perhaps also useful to provide other script writers with a space where they can inform the updating of their scripts. All in a single post, facilitating consultation and monitoring.

If it weren't for the user's mistake in downloading the wrong script, it would take me a while to become aware of this new script - ofn-select-layer-boxDodgy

Thx.

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Question Can I "chroma key" white tones to black?
Posted by: ANANAN - 04-13-2021, 01:50 PM - Forum: General questions - Replies (1)

Hey!

I have a drawing with lots of white paper showing through, and I want to make the white black.
The magic wand doesn't work, because the whites are undetectable and all over.

Is there a way to scan for the whitest hues of color and remove/replace it?

Thank you so much!

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  CMYK ICC Color Profiles Download for Soft proofing
Posted by: Carl_observing - 04-13-2021, 06:02 AM - Forum: General questions - Replies (1)

Hi. Does anyone know where to download CMYK ICC Color profiles? There are two 2-year-old tutorials by Michael Davies on YouTube that describe how to download the Adobe ICC color profiles. Unfortunately, that link https://supportdownloads.adobe.com/produ...rm=Windows does not work anymore and without the color profiles, one cannot do the soft proofing mentioned in the tutorial. I am hesitant in providing the link to the tutorials as I am not sure if it is allowed here.

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  How can i add a prevalent layer to an animated gif like in photohop?
Posted by: Someone1 - 04-12-2021, 06:33 PM - Forum: General questions - Replies (3)

I am new to gimp so i am still getting familiar with the interface.

In photoshop, an animated gif worked like this, there is a timeline and the layers on the side:

[Image: UD3wvDL.gif]

If i wanted to add a prevalent layer that existed in ALL the animation, all i had to do was go and add a layer (in this case, for demonstration purposes a black rectangle) to the THE END, after the last layer of the animation. When animated that layer will apply to all the animation:

[Image: 0lDPao9.gif]

How can i do this with GIMP?

If i import an animated gif, add a layer at the end and then export to save the layer will only appear at the end of the gif animation, not in all the animation.

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  Having some issues with lowering brush hardness
Posted by: AlphaWolf464 - 04-12-2021, 05:53 PM - Forum: General questions - Replies (2)

So, i was messing with different gradients recently, and im wondering if that changed it, tho it might be something else.The attached picture is what happens when I lower the brush hardness to 30 and click. See how theres that part that i labeled in red where the hardness suddenly drops off? It didnt used to do that, and im wondering how to fix it so that its a more consistent fadeaway.



Attached Files Image(s)
   
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  Oldschool Shirt Designs / Threshold Question
Posted by: CrystalLogic - 04-11-2021, 10:40 PM - Forum: General questions - Replies (11)

Hi!

I am new to this forum and have a specific question. I tried to find the answer myself by experimenting but now came to the conclusion i need external help.

I am relatively new to GIMP (watched and worked through one or two dozen of tutorials, experimenting, some of this , some of that) and really enjoy it. What i would really like to do is trying to create shirt designs, namely pretty specific ones. I try to explain:

In the music genre where i feel home at most (Heavy metal and related) thre is a huge scene of shirt bootleggers, that make very old school looking designs. These usually have quite a reduced colour spectrum (4 to 8 colours maybe). To make clear what i am talking about here is an example:

https://burningleathermx.com/wp-content/...8932_n.jpg

https://burningleathermx.com/wp-content/...9462_n.jpg

The originals to these shirts are these Cover artworks:

https://www.hrrshop.de/bilder/produkte/g...-BLACK.jpg

https://images-na.ssl-images-amazon.com/...L1425_.jpg

So i hope you get the idea !

My question is : How would i do this? From a guy i know who is a passionate avid photoshop user and professional graphic designer, i know how he does it with photoshop. He basically first uses threshold on the picture an then somehow colours a layer with a specific colour , then duplicates the picture , sets the threshold higher / lower, colours the next and so on, until those all together make a design like those above.

So i tried this with GIMP but i cannot seem to get past the part of colouring the first layer. i used the threshold feature, coloured all the black parts , but from then on it doesn't work.  As far as i know Photoshop has somewhat of a function that you just put on a coloured layer over the picture, but i cannot find anything in GIMP. Maybe with a layer mask?

So : if anyone has any idea how i could achieve this it would be highly appreciated !

Thanks a lot in advance and please excuse if my English is a bit crooked, i am from Germany and it's not my mother tongue Big Grin 

Cheers
Hendrik

Edit: I played around a bit again and made a screenshot so it might be even more clear what i want to achieve. It gets a tiny bit into the direction i want but the problem is still the other colors aren't shining through



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  JPEG sampling factors explained
Posted by: Ofnuts - 04-11-2021, 03:26 PM - Forum: Watercooler - No Replies

If you ever got confused about the JPEG sampling factors notations as shows in Gimp's JPEG export dialog, but also ImageMagick's identify, mediainfo, here is a page that explains it all:

https://zpl.fi/chroma-subsampling-and-jp...g-factors/

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