counting number of white objects in BW image

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Nachiket Patki 2018-5-3

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https://ww2.mathworks.cn/matlabcentral/answers/398814-counting-number-of-white-objects-in-bw-image

编辑： udi ibgui 2019-12-5

采纳的回答： Yuvaraj Venkataswamy

op6.png

I have an image, (see the attachment)

I want to count those white objects. I tried eroding and then tried to convert it to circular shaped looking objects (in order to count the number of circles)but after erosion, they don't actually convert exactly to a circular shape.

Is there any other simple way to count those objects?

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Yuvaraj Venkataswamy 2018-5-3

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Use this commands where Num is the number of white objects in the image.

    BW=your_binary_image;
    [L,Num] = bwlabel(BW);

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Yuvaraj Venkataswamy 2018-5-4

Welcome You.

udi ibgui 2019-12-5

编辑：udi ibgui 2019-12-5

HI, I just tried testinf this method on the provided image, and I am getting Num=27. Should it not be 25? Where am I going wrong?

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Image Processing and Computer Vision Image Processing Toolbox Image Filtering and Enhancement Watermarking

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