Thanks YXDragon for quick reply. 1. Yes I have tried skeletonisation but hanged for further processing. hope the links u have sent will help to resolve. 2. Wow.. great. that is exactly I need and done partially. Can u pls explain the 1.jpg--->2.jpg--->3.jpg. I want exactly the same 3.jpg (junction points). Can i call imagepy in my python script and get the o/p of it for further processing? 3. Is it possible to convert directly image to graph data structure?
On Thu, May 18, 2017 at 10:42 AM, <imag...@sina.com> wrote: > 1. you can do a skeleton, then use a np.ones((3,3)) to convolve. then 3 > means junction, one means termin. 2 means path. > 2. trace from a termin. iterate all the pixel > 0. and add node if != 2! > > some tips: > 1. if you do skeleton straightly, you will get some small branch, you can > remove them by graph analysis. but I have a tip, you can do a gauss blur, > then threshold again. this will smooth the binary image. > 2. trace the path is not very simple, you need care many detail... you can > look mine. > <https://github.com/yxdragon/imagepy/blob/master/core/graph/builder.py> > 3. the scikit-image's skeleton method prefers to generate branch > (sometimes we want, but here we need not), you can look here > <https://github.com/scikit-image/scikit-image/issues/2550>. > > > you can have a try my project imagery > <https://github.com/yxdragon/imagepy> do some test. which can wrap > scikit-image like photoshop! > (but I do not know if scikit-image has a method to build the skeleton) > > My English is solo, forgive me. > YXDragon - ImagePy > -------------------------------- > > 来自我的新浪邮箱android客户端 > > -------- 原始邮件 -------- > > 发件人:Leena Chourey > > 时 间:2017年5月18日 12:05(星期四) > > 收件人:scikit-image@python.org > > 主题:[scikit-image] Need help to get graph from image > > Dear All, > > I need to convert shape based image(graph_search2.jpg) into graph and then > graph data structure. I have tried to filter the image and then with > threshold, contour based approach access shapes(nodes), lines(edges) and > arrows. but facing difficulty in getting relation b/w nodes and edges. > Please help to find interest point(interest_points.jpg) and relation in > node n edges. > > -- > > Thanks & Regards, -धन्यवाद > > Leena Chourey , लीना चौरे > > C-DAC Mumbai सी-डैक, मुम्बई > > _______________________________________________ > > scikit-image mailing list > > scikit-image@python.org > > https://mail.python.org/mailman/listinfo/scikit-image > > > -------------------------------- > > 来自我的新浪邮箱android客户端 > > > _______________________________________________ > scikit-image mailing list > scikit-image@python.org > https://mail.python.org/mailman/listinfo/scikit-image > > -- Thanks & Regards, -धन्यवाद Leena Chourey , लीना चौरे C-DAC Mumbai सी-डैक, मुम्बई
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