How can i count black spots in an image?

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I cannot figure out how to count the black spots on the image that I have got after some processing applied. Below you can find attached two images that I want to count that marks. The ideal will be to count the marks and display an alert or something like this that says "Number of circles: #" I used regionprops with any results.

Accepted Answer

Image Analyst
Image Analyst on 12 Nov 2015
regionprops() works with white blobs, not black blobs. So just invert. But you can actually do the count with bwlabel():
[labeledImage, numberOfBlobs] = bwlabel(~binaryImage);
  3 Comments
Image Analyst
Image Analyst on 3 Jun 2023
Edited: Image Analyst on 4 Jun 2023
@Abdur Rahman search the image processing literature for published papers on animal counting:
For example here is one paper:
Real-time recognition of cattle using animal biometrics,
RealTimeIP(13), No. 3, September 2017, pp. 505-526.

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