Hi, 
I'm using Gimp 3.0.2 revision 1 and I'm trying to produce something like a colour swatch like paint companies have.

I've got all my colour values (120 of them) and what I am trying to do now is select a fixed size rectangular area in varoius positions across the image.
I have found the menu related to the rectangular selection tool, that offers Fixed Aspect Ratio, Fixed Width, Fixed Height  and Fixed Size and ticked the box next to the fixed Size Option. 

The size to select that I have selected is 160px by 80 px. (It seems that this needs to be set before selecting the fixed size option) But when I try to do the selection by mouse it always reverts to a 100px by 100px square selection.

When I look at the other options in the menu they are all set as well. It seems I cannot set one without setting all the others. Am I doing something wrong?
Cheers
Andy

Hello Sir,
I have some questions about the use of gegl:convert_space.

I used my own icc profile on the image, but the iccprofile did not affect the output image.
The output image is the same as the input. Is there a problem with the process or the use of the gegl library?
Please give me advice. grateful.

Here is my code:

int main(int argc, char* argv[]) {
    if (argc != 4) {
        std::cerr << "使用方式: " << argv[0] << " input.jpg output.jpg icc_profile.icc" << std::endl;
        return 1;
    }

    const char* input_file = argv[1];
    const char* output_file = argv[2];
    const char* icc_profile = argv[3];

    // 初始化 GEGL
    gegl_init(nullptr, nullptr);

    // 加載輸入圖像
    GeglNode* input = gegl_node_new_child(nullptr,
                                          "operation", "gegl:load",
                                          "path", input_file,
                                          nullptr);

    // 應用色彩空間轉換
    GeglNode* convert_space = gegl_node_new_child(nullptr,
                                                  "operation", "gegl:convert-space",
                                                  "path", icc_profile,
                                                  nullptr);

    // 將輸入連接到色彩空間轉換節點
    gegl_node_connect(input, "output", convert_space, "input");  //gegl_node_connect_to(input, "output", convert_space, "input");

    // 保存輸出圖像
    GeglNode* output = gegl_node_new_child(nullptr,
                                           "operation", "geglave",
                                           "path", output_file,
                                           nullptr);

    // 將色彩空間轉換節點連接到輸出節點
    gegl_node_connect(convert_space, "output", output, "input"); //gegl_node_connect_to(convert_space, "output", output, "input");

    // 處理圖像
    gegl_node_process(output);

    // 釋放資源
    g_object_unref(input);
    g_object_unref(convert_space);
    g_object_unref(output);

    // 結束 GEGL
    gegl_exit();

    std::cout << "色彩空間轉換完成，結果保存至: " << output_file << std::endl;
    return 0;
}

Because I prefer to run GIMP in a portable mode my setup and invocation scripts differ from the standard default norms.  When I look at the online man page it uses a lot of terms that appear to be related to GIMP 2.  For example, the environment variable named GIMP2_DIRECTORY.  This makes me wonder whether or not such is accurate for GIMP 3.

I also notice that GIMP 2.10.38 is the most recent version being offered by the Portable Apps Program as of today (4/17/2025).

I came across the pollinations.ai site, which among other things allows you to generate artificial images even just using a URL in the browser... so I said to myself and WGET? Also!

So between yesterday and today I created a simple interface in bash and yad to take advantage of opening with Gimp or saving the images created.







You can download it from here (it's a single file), or installer for menu icon.

https://github.com/vitforlinux-gimp/AIMAGoR/

Hi

I've just installed GIMP 3.0.2 (revision 1) now on a Windows 11AMD RYZEN 9 laptop. I use this laptop offline so I need the offline manual.

I downloaded "gimp-help-3.0.0-en-setup.exe" but it doesnt install it, it shows "No suitable GIMP installation were found. GIMP Help can only be installed when GIMP 3.0 is already present."

My institution vets any download I request. Their cyber security system blocked downloads from the  Gimp website. Thus Gimp is not accessible.


By comparison no problem download and install LibreOffice and Irfanview
We tried to access Gimp via Softronic. Blocked access here too.

Any suggestions?

Hello everyone.  I've downloaded the RemoveBG plugin for a Gimp 3 AppImage from here:

RemoveBG Plugin

and have successfully been able to pull up its dialog box but, it doesn't do anything. I've changed the path as the thread suggests and the problem seems to be with actually installing the rembg program that is also required to make the plugin work properly.

There is another user in the same thread having the same issue I am having which was never resolved for him so I thought it would be best to ask the question here about how to actually install the rembg program on Linux Mint 22.1.

When I try to install it, from here: RemoveBG Program 

I start getting all types of other dependencies that need to be installed, just to actually get started with the install itself, and was wondering if anyone has ever made the plugin work properly in Linux Mint/Ubuntu/etc... before I go to the trouble of trying to install God knows how much stuff to make it work.

Maybe it's a rabbit hole that would be best not to go down?

The Appimage is one that Rich fixed up for me based on Mateusz Lukasik's PPA.

Windows 10でGIMP 3.0を動かしていますが
arrow-set-size.scmが動きません。
御教授、お願いします。

I have a few photos where I knew I was shooting with 1.5 stops of correction. That was too much, not overblown, but just a little too much. What is the relationship between the values in the 'Colors / Exposure' slider and one aperture stop more/less (or double/half iso or shutter speed)?

Hi 


Please can anyone tell me how do I place a white border around an image that has a white surrounding area, and then another coloured border ? 

I thought it would be as easy to insert a white border first and then another larger coloured (colored) border, however the white border has a differently shaded area along 2 sides with a mitre in one corner. 

thanks in advance