Recent content by alitas

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    The discrete integral of a contour of an image

    right, I think you gave me the idea, so if I did not understood wrong, every curve will have the height equal 1 it would be the same as a line (height = 1), the only thing to consider is the width. So if I have two curves separated it will be the same idea as before ( I think), but without...
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    The discrete integral of a contour of an image

    So for example if you have several x,y and z (function) that are not consecutive how to integrate x,y,z=function 1,1,3 1,2,4 1,4,5 instead of having a polinomial function you have an arbitrary function. Thanks again
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    The discrete integral of a contour of an image

    It is the second thing the curve must evolve certain shape so the force can be for every point of the curve multiplied by a force. For example the force can be c1 = average inside of the curve c2 = average outside of Phi0 I1 = image force=-(I1-c1).^2+(I1-c2).^2; But the function I am...
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    The discrete integral of a contour of an image

    Thanks for answering. I attached an example I want to calculate the integral of a contour (discrete points). The function could be the force that makes evolve this contour. The first example is the trivial I calculate the function in every points and I multiply it by the width between the two...
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    The discrete integral of a contour of an image

    Hi everybody ! I have a question about discrete integrals with contours. I want to integrate the points that makes the contour of an image. When the contour is only one curve it is easy I get the function in every point of the contour and I multiply by the distance between two consecutive...
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    Numerical techniques for the integral defined by a contour

    Let's simplify the question, I hope it is simple to understand. how would you solve a discrete integral over an image. So I have discrete points over the image and I am just interested in a subset. If it was a polynomial function it would be straightforward but how do you deal with the width...
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    Numerical techniques for the integral defined by a contour

    Homework Statement I have a doubt about how to solve an integral and what numerical method I could use to solve it. Example A = [1,2;2,4] Contour = [0,0,1,1] r = I-mean; integral of the position where the contour is equal zero and obtaining from that positon the value Ai which is...
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