I roughly translated a c plugin into a python script here:
http://www.gimplearn.net/viewtopic.php/G...815#p17815

The main logic is it loops through all the pixel coordinates.
- at each pixel coordinate.
 - grab color value of red channel of bottom layer (r value) turns this into an index.
 - add color value of red channel of top layer to color[index] (r[index])
 - increment frequency (frequency[index], rf[index]) (like counting pixels)
- do this to green, and blue values as well.

That's it, it does this for all channels to create an RGB curve using the above calculated values.
I am wondering if pdb.gimp_histogram can be used so that script is faster than the current pixel by pixel calculation.

I tried thinking about histogram but I am not familiar with it and the location is involved as it calculates what color is actually in place of previous color so I am totally confused and not sure at all if histogram can some how perform this task.

Really excited about the new GIMP!

I cannot seem to get the new Drop Shadow (Filters > Light and Shadow  > Drop Shadow...) to work.
Legacy works fine but Drop Shadow (GEGL) produces nothing. What am I doing wrong?

Win10 (10.0.14393) 64bit
Gimp 2.10.2

see screencast

Hello, recently my mother did two images to be the back and front of a card. The idea was to replicate them as much as possible into a single sheet, to generate as many cards as possible.  I went to a specialized place to print them (do not know the name of this kind of place in English), since there is no printer here. The attendant replicated them, but when the printing was done, the card's images were printed inclined. A new attempt was made with a different kind of paper (couche instead offset), because the attendant said it was related to the paper kind, and the printed images became less inclined, but enough as the back and front of the card did not match, they were not aligned, so there was a resulting with strip. The man responsible

My mother remade the images. She replicated the cards front and back images herself.


 Here is a screenshot of them:


However the attendant (a different one from the day before) said something about how these images would not work, that they needed to be in the same pdf file (all the images until them were jpg) in two different pages.

My mother did this:   but I do not think it will work, I don't know how to generate a .pdf with two pages with it, one a pdf with a single page. There is a non selectable option called "Two-sided" on  "Page-setup", but well, is  non selectable.

So my question is if it will once more be printed in a non aligned way (I think it will) , and if that's the case, what should I do to solve the problem.

Thanks for any help.

Using the foreground select tool in 2.10 doesn't give a satisfying result.
This is the mask that is produced in GIMP 2.8
   

and in 2.10.
   
Whereas the mask in 2.8 is plain black/white ( as I think it should be) it has a fuzzy border in 2.10.
For a quick cutting tool I find this result unusable.

Original Photo for reference:

   

Just posted this to show the difference. I don't have a problem with cutting out elements. I can use scissors instead. Or G'mic ...
But the foreground select was always nice and easy and quick  for simple elements.

Regards
nelo

Hello,

I'm using the dds plugin 3.0.1 for gimp 2.10 found at
https://code.google.com/archive/p/gimp-dds/downloads

With the introduction of the new Gimp version the possibility was added to add masks to layer groups.

If layer masks are used an error pops up everytime you want to export the .dds file.

   

The export itself works perfectly but I have to close the GIMP Error window everytime.

Has anybody an Idea how to adjust the .dds plugin to work with layer groups or to just disable the error window?

Help would be greatly appreciated.

Hello,

I'm missing the normalize function, how can I find it? It's not in the colors > auto menu.

GIMP 2.10.2 on Linux Mint 18.

   
This is the explanation about the border average in gimp doc.All the vocabulary used is easy, but I don't understand real meaning of none of them. What is the thickness here? What is bucket size and number here?

I've got a picture of a person who I want to cut and paste into a new layer so I can put text behind them slightly. However, when I draw the selection out and proceed to cut it, it IMMEDIATELY fades out all the edges of the portion left over from the cut. Now, if I paste my selection into a new layer, instead of it seemlessly fitting into the old spot perfectly, there's a gross white border around the cut making it unbelievably obvious that I cut that selection. Is there not some sort of option to turn this off during cutting?

 HELP!

(06-07-2018, 02:56 PM)thesanealien Wrote: I've got a picture of a person who I want to cut and paste into a new layer so I can put text behind them slightly. However, when I draw the selection out and proceed to cut it, it IMMEDIATELY fades out all the edges of the portion left over from the cut. Now, if I paste my selection into a new layer, instead of it seemlessly fitting into the old spot perfectly, there's a gross white border around the cut making it unbelievably obvious that I cut that selection. Is there not some sort of option to turn this off during cutting?

 HELP!

I decomposed a rgb image. It has 3 layers of r, g, and b now. I think using recompose is faster than composing since recomposing doesn't bring up the dialog. But, when I did colors>components>recompose, nothing happens. What should I do for making something happen?

This was reported as a bug in Gimp 2.10.2 - might be a bug (report seems to have vanished) or it might be one of the coders having fun.

Concerns the tiny area between the zoom button and the status area



Depending where you click, and it seems to be very specific screen pixels

you can flip the image left to right



or top to bottom



or bring up a rotate canvas dialogue that acts like the shift - middle-mouse-button action