[scikit-image] 回复:Re: 回复: Need help to get graph from image

[imagepy at sina.com]

I has build the networt, look tips 2. imagepy is not a function library, but a interactive framework witch can wrap numpy, scipy, scikitimage, opencv as a friendly.software.  by another, please donot save picture as jpg. the dct transform may destroy the high frequent information.

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发件人:Leena Chourey
时    间:2017年5月18日 13:30(星期四)
收件人:imagepy at sina.com
Mailing list for scikit-image (http://scikit-image.org)
主题:Re: [scikit-image] 回复: Need help to get graph from image
Thanks YXDragon for quick reply. Yes I have tried skeletonisation but hanged for further processing. hope the links u have sent will help to resolve.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?Is it possible to convert directly image to graph data structure?
On Thu, May 18, 2017 at 10:42 AM,  <imagepy at 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.3. the scikit-image's skeleton method prefers to generate branch (sometimes we want, but here we need not), you can look here.
you can have a try my project imagery 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 at python.org主题:[scikit-image] Need help to get graph from imageDear 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, -धन्यवादLeena Chourey , लीना चौरे C-DAC Mumbai सी-डैक, मुम्बई _______________________________________________scikit-image mailing listscikit-image at python.orghttps://mail.python.org/mailman/listinfo/scikit-image

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Thanks & Regards, -धन्यवादLeena Chourey , लीना चौरे C-DAC Mumbai सी-डैक, मुम्बई 



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