Hi -- just to show the results from the x-hatch version of the solution I proposed, take a look at the images in these links: https://drive.google.com/file/d/1D6WRmoq4bSJj_708GkfPKz52FaVvmKlA/view?usp=sharing https://drive.google.com/file/d/1hNtBPO2nMavE0XGnJBRyNzi9oaF0uGSb/view?usp=sharing
Just one solution. I am having trouble making the first solution I proposed work because not only is the original image so chunky, it is also very dark. If there was a way to extract the "K" layer in a "CMYK" image, it might be easier to grab just the black. I'll keep working on it and let you know what I come up with. On Wed, Apr 25, 2018 at 2:56 PM, ociebieda <for...@gimpusers.com> wrote: > I am already using gimp for years, not professionally, but I know most > basics. > I also already used google to find proper solution, but all tutorials are > not > exactly about what I need, so please do not send me links about simple > black n > white or greyscale conversions. > > What I need is to convert colored image to almost pure black n white > effect with > smooth curves. > I am not talking about greyscale with "desaturate" or 2 color with > "threshold". > > Original image in lossless PNG. > It has various colors that I want to remove, not making them greyscale. > https://speedstar.itos.pl/gimp/gimp-original.png > > Method 1. > I use "threshold" with value 160, which is close to what I am looking for, > but > the problem is that it makes image pure 2 color, and all curves are not > smooth, > making no shades between black and white pixels (use pixel perfect zoom > withot > blurring filters if you are not sure what I am talking about). > https://speedstar.itos.pl/gimp/gimp-threshold_160.png > > Method 2. > I use "desaturate" with "average" setting, make duplicate and set layer > mode to > "dodge", which keeps smooth curves and nicely removes most filling colors, > but > there are grey fogs that can be noticed on chest, upper leg, and shoe. > https://speedstar.itos.pl/gimp/gimp-desaturate_average_layer_dodge.png > > Method 3. > I use "desaturate" with "average" setting, increase gamma (not brightness, > because I do not want to touch black color) with "levels" with value 160, > increase "contrast" to value 96 (127 makes image 2 color), but I am still > getting grey fogs slightly on chest and noticeably on upper leg, and also > some > lines become too small. > https://speedstar.itos.pl/gimp/gimp-desaturate_average_ > levels_160_contrast_96.png > > Method 4. > I use "color to alpha" on all colors, make duplicate and set layer mode to > "dodge", which seems to to have better effect than previous methods, but I > am > still getting grey fogs that can be noticed on chest, and if I use another > duplicate and set layer mode to "dodge", then lines become too small. > https://speedstar.itos.pl/gimp/gimp-all_colors_alpha_layer_dodge.png > > Any ideas? > Thanks for any suggestions, and please, lets discuss it like intelligent > adults, > no useless comments, no childish behaviors. > > > -- > ociebieda (via www.gimpusers.com/forums) > _______________________________________________ > gimp-user-list mailing list > List address: gimp-user-list@gnome.org > List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list > List archives: https://mail.gnome.org/archives/gimp-user-list > _______________________________________________ gimp-user-list mailing list List address: gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
