How to insert a disc and centered around the dot?

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Sara 2020-2-10

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评论： Sara 2020-2-10

Hi,

I have A = zeros(100,100) materix which I added a while pixel (dots) in this zeros materix randomly. I have also another disc materix as follows

disk = strel('disk', 10);

D = disk.Neighborhood;

what I want to do is insert the disc and centered around the pixel ( white pixel)

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Walter Roberson 2020-2-10

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A(appropriate_row:appropriate_row+99, appropriate_column:appropriate_column+99) = ...
    A(appropriate_row:appropriate_row+99, appropriate_column:appropriate_column+99) | D;

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Walter Roberson 2020-2-10

The +99 should be +9

Protection needs to be added for the case that the location is near an edge.

Sara 2020-2-10

Thank you for your reply. I did fix this as you says. it should be less than the disc raduis which is 10 in my case.

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