I'm trying to crop the white border around this hat.  I used select-by-color with a very high threshold to select anything with white in it.
You see that there are some areas inside the hat selected.



I invert the selection with ctrl-I, then use "shift" to add the selected area to the selection.  (Curiously, the tool shows that it's in mode "replace", which it isn't, as you'll see in the next photo.)



The pixels inside that parallelogram have been added to the selection:


If at this time I delete the selection, notice the dark smudges inside the hat (one is the upper-left corner) where it doesn't remove all the color.
It appears to be feathering.


Undo, ctrl-I, delete the white: also deletes the same amount from the hat as was left behind in the previous delete:



This has got me totally stuck!  I've tried turning antialiasing on and off, tried using "subtract" mode instead of "add" mode--no matter what I do, I can't get GIMP to delete just the area inside the selection.  Note feathering is turned off both of all the selection tools used.
I'm on a tight deadline and have no way to proceed.

The different value between Sample Points Vs Color Picker.

Hello, I'm not sure how to explain, but I think the image illustrious enough about my doubt.
I use the Color Picker (CP) to find a point (X,Y) of the image with a certain amount of tone desired. So I create at the same point (X,Y) a Sample Points (SP).

As the point is the same, the image is the same, the Value should be the same in the Sample Point window and in the Color Picker window, and usually has been, but ...
In the creation of points 01 and 02 indicated in the image, there was fidelity between the values of Value displayed by SP and CP, but when defining point 03, there was a discrepancy.

According to the image below, for the same position X = 576 and Y = 676 the Value at the sample point is 42%, while in the Color Picker it is 37.6%
   
Maybe I'm doing something wrong, but what?
Why different values?
Thx.

Hi.

I am making a GIF and this is my first time, so I have a lot of questions .
So, I put the pictures into layers & I exported the GIF, but when a layer appears, the one before it doesn't disappear, so it looks like it's trailing. 
While exporting, I chose (replace) in frame disposal but it doesn't do a thing!

This is how it looks:
https://imgur.com/a/03gSsyv

Thanks.

Hello guys, this is my first question here.

So, I was trying to make a GIF using sprites I downloaded. However, the pictures are very small, and whenever I try to make them larger, the quality becomes low.
Is there any way to fix this? Thanks.

I am trying to batch process some files, using the Python console

Longshot, but figured I'd try...

I have an antique record album cover with some cool line-art/graphics, trying to restore a crisp clear rendering, absent some faded or smudged patches and coffee stained areas. The largest and most valuable object is a sort of hand-rendered wire-frame BW image of a guy in a tuxedo sitting and playing an imaginary curved grand-piano keyboard. Using the magic wand and color select tools with different thresholds, I can get about 95% of what matters, leaving 5% in the form of tiny pixel islands (debris) left over from threshold selections, scattered inside tight spaces, which can only be removed (AFAIK) by carefully erasing them one by one.

Not a show-stopper, but if there's a way to do it I haven't found, would appreciate any suggestions.

Hi all,

I just installed this program, and for some reason now all my .pdf files has became overcome with the Gimp image and open with this application directly instead of its own acrobat reader.

Just I would like this not happen but after trying to read the 656 pages manual and sort in forum for this situation with no succes I could not find how to turn this off from preferences or default or hidden default or.... what I need to do for this not happen?

If any can help me in this I will aprecciate a lot.

Best regard all

C.

I have an issue with my camera (cheapo 4k camera), on any other setting it's fine but when videoing in 4k I find every few frames are repeated producing an annoying jittery effect.
I used ffmpeg to convert the first 240 frames of a 15 minute video to see the problem in more detail, the images are definitely repeating every few images or so (although it's not at regular intervals, and not just one duplicate frame but 2 or 3 in a row at times)
I tried ffmpeg on it's own [i.e. https://stackoverflow.com/questions/5396...ate-frames ], but the result wasn't what I expected at all.

So it's difficult to deal with - to get rid of ALL duplicate frames in a 15 minute 30 fps video manually would be a non-starter.. so I looked into a Python solution - I installed dhash (via pip) which uses Pillow for parsing the images and it generates a "difference hash" for each image. I ran a test script and it seems to work how it should, each duplicate has the same hash value (see pic)

   

Could anyone help me in finding a solution or any other way of sorting the hashes so that the duplicates are gone, and in there places are blank spaces so that I can edit a column next to them with the associated image file that will need deleting. Hopefully then I can reconstruct the file using ffmpeg.

Alternatively is there any software out there that will do the same thing.

Thanks

Hello,

i'm looking for tips and tricks on how to make something like this in GIMP.


Thanks!

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