This workflow detects spots in a 2D image by filtering the image by Laplacian of Gaussian (user defined radius) and detecting regional intensity minima (user defined noise tolerance).
The macro will segment nuclei and separate clustered nuclei in a 3D image using a distance transform watershed. As a result an index-mask image is written for each input image.
InspectJ is a free ImageJ/FIJI tool to inspect digital image integrity.
InspectJ_v2 is a newer version for advanced users. It applies additional features like histogram equalization and gamma correction for improved image inspections.