MATLAB: Please, Can anyone suggest me the best easy and fastest detection and extraction of wbcs from a blood smear using any image processing techniques

biomedical image processingeasiest generalised image processing techniquesextraction of wbc

A normal human blood sample image with losts of wbc and rbcs will be provided in an image. How can i extract the wbcs completely from rbcs and thereby the image processing techniques must be generalised for images with high and low brightness , can be zoomed in or zoomed out but is manually detectable and extractable.
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