![]() This can be done in Inkscape, but it would require use of several tools to be able to independently move the side of a clipping object. Once cropped it is easy to add a simple border of your colour choice using Filters>Decor>Add border The reason being, gimp has a crop tool, which if you just hover the mouse over one of the sides, it allows you to use the arrow keys to frame the subject one side at a time. This can be done in Inkscape using the clip tool, however I would recommend GIMP ( which is free and works alongside Inkscape ) to do this. That means you can move the mouse without having to hold the left mouse button at the same time.Īlso '5' is click and '+' is double click.įrom what you are saying you want to crop the image to fit the subject and then add a nice border ? It uses the numeric key pad and allows you to press '0' to switch on drag, and '.' to release drag ( drop ). Once activated, this can be turned on and off using Shift+Numlock key combination. If you are using Windows I would highly recommend enabling 'mousekeys'. I don't know how the image came to you, however I know from experience after injuring my right hand - holding the mouse button and dragging an eraser tool around the screen is not fun. The ring in this case is surrounded by a large blank background area, which appears to have been scrubbed at with an eraser tool in another program ? You could try Autotrace, which has such a feature.When you say manually, you mean automatically frame the subject in the image. Algorithms used for centerline tracing are quite different than those used for outline tracing it might be more useful to write a separate program for this purpose. Question: Does Potrace provide centerline tracing? Instead of tracing the contour of my image, I just want a single line in the center of each stroke.Īnswer: No, Potrace is not designed to do centerline tracing, and for technical reasons, it is unlikely that this will change in the near future. Recent versions of Inkscape have a built-in Potrace engine that can handle color images via color quantization or multiple scanning, thanks to the great work of Bob Jamison and the Inkscape team.Īnother interesting application of Potrace to color images is described in the fascinating article Automatic Generation of Stained Glass from Scanned Photos by C. I have used a command line similar to this:Ĭat img.gif | giftopnm | ppmcolormask #641b1b | potrace You can get pretty good results for posterized images. Or you can extract individual color components from your image using the Gimp or ppmcolormask (part of the netpbm package), trace them separately, and then overlay the pieces to get a multicolored image. For example, you can trace an image to SVG format using the -svg and -opaque options, and then use e.g. Question: How can I work around the lack of color support?Īnswer: There are many ways in which Potrace can be useful in processing color images, with some extra work. I can usually switch to a new bit of software with a few tutorials and some googling but this is just getting painful. I realise there's a learning curve and there will be something obvious but I'm struggling. (I'm begging you guys for help here, I seriously do not want to go back to Adobe. ![]() nothing else, just a vector image of that outline with no anti-aliasing? I expand the outline (but I can not tell what thats done, if anything) How do I do this in Affinity? It's been 2 hours of googling and playing but no luck. I'm trying to convert from photoshop to affinity but am struggling.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |