I wrote a python script that removes a background colour from an image, orientates the remainder, resizes the image and then overwrites the existing image file. All of the functions work as expected...but they don't happen in the order expected. The final two lines (below) happen in reverse order.

Quote:    pdb.gimp_image_resize(imageToBeResized, 900, 1500, widthoffset, heightoffset)
    pdb.gimp_file_save(imageToBeResized, drawable, imageFileName, imageFileName)

1. Running the second line twice makes no difference - it will continue to overwrite without resizing.
   
2. Duplicating both lines (1,2,1,2) actually shifts the affected area so that it saves in 900*1500 but to the image focus' upper left.
   

Quote:def postmatch_resize(image):
    imageFileName = pdb.gimp_image_get_filename(image)
    imageToBeResized = gimp.image_list()[0]
    drawable = pdb.gimp_image_active_drawable(imageToBeResized)
    pdb.gimp_image_crop(imageToBeResized, 1900, 1500, 0, 0)
    colorToDelete1 = gimpcolor.RGB(9, 246, 57)
    colorToDelete2 = gimpcolor.RGB(6, 185, 42)
    colorToDelete3 = gimpcolor.RGB(7, 216, 50)
    colorToDelete4 = gimpcolor.RGB(4, 123, 28)
    colorToDelete5 = gimpcolor.RGB(5, 154, 35)
    colorToDelete6 = gimpcolor.RGB(3, 93, 21)
    colorToDelete7 = gimpcolor.RGB(2, 62, 14)
    pdb.gimp_image_select_color(imageToBeResized, 0, drawable, colorToDelete1)
    if pdb.gimp_selection_is_empty(imageToBeResized) == False:
        pdb.gimp_edit_clear(drawable)
    pdb.gimp_image_select_color(imageToBeResized, 0, drawable, colorToDelete2)
    if pdb.gimp_selection_is_empty(imageToBeResized) == False:
        pdb.gimp_edit_clear(drawable)
    pdb.gimp_image_select_color(imageToBeResized, 0, drawable, colorToDelete3)
    if pdb.gimp_selection_is_empty(imageToBeResized) == False:
        pdb.gimp_edit_clear(drawable)
    pdb.gimp_image_select_color(imageToBeResized, 0, drawable, colorToDelete4)
    if pdb.gimp_selection_is_empty(imageToBeResized) == False:
        pdb.gimp_edit_clear(drawable)
    pdb.gimp_image_select_color(imageToBeResized, 0, drawable, colorToDelete5)
    if pdb.gimp_selection_is_empty(imageToBeResized) == False:
        pdb.gimp_edit_clear(drawable)
    pdb.gimp_image_select_color(imageToBeResized, 0, drawable, colorToDelete6)
    if pdb.gimp_selection_is_empty(imageToBeResized) == False:
        pdb.gimp_edit_clear(drawable)
    pdb.gimp_image_select_color(imageToBeResized, 0, drawable, colorToDelete7)
    if pdb.gimp_selection_is_empty(imageToBeResized) == False:
        pdb.gimp_edit_clear(drawable)
    pdb.plug_in_autocrop(imageToBeResized, drawable)
    preheight = pdb.gimp_image_height(imageToBeResized)
    prewidth = pdb.gimp_image_width(imageToBeResized)
    heightoffset = 1500 - preheight
    widthoffset = (900 - prewidth)/2
    pdb.gimp_image_resize(imageToBeResized, 900, 1500, widthoffset, heightoffset)
    pdb.gimp_file_save(imageToBeResized, drawable, imageFileName, imageFileName)

Hi All

So I have an image with a blank white space and a hand around it, I am selecting the white space and now want it to add an image into that white space, adjusting for perspective etc. Is this possible in gimp? I am aware of how to do it manually, was hoping of a quicker method

There's a very useful function in Adobe Photoshop Elements called Photomerge - this allows you to scan a very large document in several images and then combine them into a single image by just opening each one in the program and choosing the Photomerge tool. There are variations in the tool like Exposure or Panorama - it is the Panorama one I'm particularly interested in. I haven't been able to find anything similar in function or simplicity in GIMP - can anyone tell me if a Photomerge function is available in GIMP please?

I'm currently using Gimp 2.14 on Windows 11. I am having trouble with the selection tool. This is a problem with all selection tools (rectangular, oval, cage, freehand, ect). 

Old behavior (desired): Click selection tool. Select the area of the canvas you want. Work inside the area. Click outside of the selected area. The area is un-selected. To add to the selected area, hold + and select a second area. To remove from the selected area, hold - and select the area to un-select. If no area has been selected, you may work on the entire canvas.

New behavior (make it stop!): Click selection tool. Select the area of the canvas you want. Area remains selected until you un-select it manually. To un-select you hold - and select the area you want to have un-selected. Unless an area has been selected, no tools will work on the canvas. You must select the entire canvas to be able to work on the entire canvas. If the entire canvas has been selected, you must un-select the entire canvas manually to be able to select a small part of the canvas.

The new behavior has been a nightmare for my workflow. I am constantly being forced to zoom out and remove all selected areas manually. I also have to constantly reselect the entire canvas so I can get back to work on the bigger picture. It's tedious and very annoying.

How do I get the old behavior back?

Hi
i used to use in photoshop a tool which was able to transform a polygon with 4 sides to a rectangle. on ordre toi make perspective disappear. you juste select the 4 points if the polygon and then activate the function and you obtain a rectangle.
i no longer have photoshop and need this fonction.
does it exist in the
Gimp ?
thanks for your help !

Is there a tutorial here on how this tool can be utilised. I am pretty sure I have seen it talked about on here. I know I could probably find one at You Tube but yours would be sufficient. Don't need to go to Davies Media for all my info.

Hi, I wish to automate an action that takes actually 6 click, to only 2 clicks , This is what I'm thinkinf of :
I click on a new "button" (I need your help to create it) that opens a setting windows. Then I can choose a kind of shape (circle/ellipse/square) to draw a shape on an image, then click on valid. The result is a blur added on the shape

(Instead of clicking on the shape button in the tool box, then select a zone on the image, then click on the Filters menu, then click on Blur, then click on Gaussian blur, then choose the level of blur, then valid.)

Thanks for your help (I don't know anything about programming!

I've been searching for an answer to this for a few days now. Though none of the suggested methods seems to work. 

I'm just editing a Diffuse map and want to clear a certain texture element so it appears invisible in-game. The frustrating thng is, no matter what I do to the selection nothing ever changes. 

I've tried deleting, erasing, manipulating the layers, adding masks, adjusting transparency thresholds, but the texture is completely unphased by it. 

To offer more context, it's a Diffuse.dds texture file which I've been editing successfully. It all works in-game, even the specularity. I just can't figure out how to make parts of the texture invisible or transparent. 

The texture file already has an Alpha and only one layer, the Diffuse.dds. There also exists a Normal map for this object, which just looks like purple nonsense to me. I haven't done much experimenting with that file. 

Anyone have an idea what is going on here?

Hi all, I have just registered  !

As I discovered a way to draw from an external device (Weylus - to turn a smartphone or tablet into a sort of network digitizer tablet), I search a way to extend the drawing area in full-screen without any other features/display (menu bar, status bar, rulers, etc.). I know we can toggle these individually, but I am looking for a solution to do it in a "one-button" way, some sort of meta-display function that we can bind to a single short key to toggle.

Is it possible from Gimp by script or other feature or must I search a solution from desktop automation tool like Autokey in Linux (or AutoHotkey in Windows) ?

Thank you in advance for the time you will spend to me .

With adelphity
lnj

[Edit]I do not find the location to write my signature ...[/Edit]

Do you know any useful GIMP plugins (or external software) that speed up texture creation for Blender?

Especially I mean: manual editing PBR textures.
There are some tools to do it in 3d, there are node based generators,
but I can't found anything to manually paint multiple images at once in 2D.


For example I set one brush to have: height 0.5 , roughness 0.1, metallic 1, and green color and, when I paint, all images will be painted with expected values. (or paint with different pbr textures)


I know there is InsaneBump plugin but it is for generate additional maps from image, not for editing.


Also I'm looking for something (GIMP plugin or external program) for packing PBR texture atlases.
Auto-packing  is not necessary,  Most important for me is ability to manually positioning many islands.

If there is nothing like this, maybe I inspire someone of GIMP developers with this idea  :-)