How about converting to vector directly from gimp? https://www.google.com/search?q=convert+gimp+to+vector&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari
On Sat, Jul 6, 2019 at 12:21 PM rich404 <for...@gimpusers.com> wrote: > >Hi, > >So I am working on a many years long map making project. I am using a > >scale of 1" to 10 miles and hand drawing it on 9x12" panels of paper. > >The current size of the map is about 20 by 20 feet. This is obviously > >too large to see in one place, so I have been using GIMP to panel them > >together in a digital file. Obviously, this file is getting quite > >large. I was hoping people might have suggestions on how to reduce the > >size of the file without reducing the image quality too much. It's > >only going to get bigger haha. I've got no experience with vector > >based programs, is that the direction I need to head? > > Gimp is a bitmap (raster) editor, works in pixels not feet and inches. It > can > display in feet and inches but your individual canvas (tile) depends on > how it > is set up with a pixels-per inch (PPI) value. > > Since you started many years ago when the default was 72 PPI the tile size > might > be 864 x 648 pixels. Then file size also depends on greyscale or colour > (RGB) > RGB making larger files than greyscale. > > Can you give details - pixel size - grey/RGB/indexed or post one of your > individual images (a tile) > > For a greyscale image one tile might be about 4 MB **in memory** so a > complete > 20' x 20' image 500+ tiles might be 2 GB - look at the bottom of the Gimp > window > for size in memory. Colour will be larger again. Not impossible for a > modern > computer but probably slow-as-a-snail for manipulating. Obviously when > saved, > the file is compressed and smaller. > > Making smaller? The only way in Gimp is scale each tile down (or the > whole) but > that will result in degradation of the image. > > Use SVG? Inkscape can convert a raster image to a vector but it all > depends on > the image. Better chance with line drawings than colour images. A vector > should > be smaller than the corresponding bitmap and of course scales up and down > without loss of quality. > > Stitching together in Inkscape? Never tried 500+ images before. Do not > know if > practical or possible. > > -- > rich404 (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
