Is it possible to apply imdilate and imerode to a signal and not an image?

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Luccas S.
Luccas S. 2022-2-25
评论： Luccas S. 2022-2-25
The question is exactly the topic name. I want to apply morphological gradient to a current signal, so I would like to know if it is possible to apply imdilate and imerode to this signal, or is it necessary to create another function for this?
The signal is a 15385x1 vector.

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Image Analyst
Image Analyst 2022-2-25
Yes it is. Most, but not all, of the Image processing Toolbox functions can operate on a 1-D image/signal.
For a 1-D vector, you can also use movmax() instead of imdilate(), and movmin() instead of imerode().

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Benjamin Thompson
Benjamin Thompson 2022-2-25
Yes, it is. As shown here, the flag structuring element adds a value of one on each side of the pulse in this test:
>> se1 = strel('line',3,0);
>> figure, plot(imdilate([0 0 0 1 1 0 0 0 0], se1))

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