Remove sketched style of an image

[Kirax]

Hello,

I'm French I don't speak very well english. Please forgive me.

I have drawn somehting and then I scanned it.


I applied a threshold in The Gimp Software in order to get a black and white image.


That is not so bad. But I don't know how tu say it in English, lines are not perfect, there is a "sketched style". This style has a charm, but I would like ti have a result a litle more professional, more smooth, like the following exemple (I haven't done this one) :

How can I process with the Gimp please ? Any Idea ?

[rich2005]

Try from the original scan

A small Gaussian blur: Filters -> Blur -> Gaussian Blur
Color -> Threshold
Filters -> Enhance -> Anti-alias

or using the gimp_gmic_qt plugin from http://www.gmic.eu (there is a Windows installer there)
Color -> Threshold
Gmic -> Testing -> PhotoComix -> PhotoComix Smoothing

Both of those as this quick animation https://i.imgur.com/Yh2xlC5.mp4

[Kirax]

Thanks a lot for the time spent to answer me !