06-19-2020, 05:13 PM
Again using indexed mode, slightly different to above:
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Not much you can do with that image. First lose the border, It does not help. You can put it back later.
Screenshots for reference - all in Gimp 2.8 https://i.imgur.com/yGbbi5O.jpg
1. Convert to indexed mode with 6 colours. Image -> Mode -> Indexed
that gets just 6 colours but the border are a bit 'jagged'
2. Back to RBG mode Image -> Mode RGB the apply a Gauusian blur - quite strong about 20
3. Repeat stage 1 Image -> Mode -> Indexed with 6 colours. That smooths the borders a bit. If you want to change any of the colours, edit the colormap
Then if you need to back to RGB mode, you will still have just 6 colours.
I did look around for suitable scripts or plugins but nothing much different to changing the colour mode
------------------
Not much you can do with that image. First lose the border, It does not help. You can put it back later.
Screenshots for reference - all in Gimp 2.8 https://i.imgur.com/yGbbi5O.jpg
1. Convert to indexed mode with 6 colours. Image -> Mode -> Indexed
that gets just 6 colours but the border are a bit 'jagged'
2. Back to RBG mode Image -> Mode RGB the apply a Gauusian blur - quite strong about 20
3. Repeat stage 1 Image -> Mode -> Indexed with 6 colours. That smooths the borders a bit. If you want to change any of the colours, edit the colormap
Then if you need to back to RGB mode, you will still have just 6 colours.
I did look around for suitable scripts or plugins but nothing much different to changing the colour mode