New features, added to the menu:
* `Tools > Filtering / background removal > Top-hat (box, clesperanto)`
* `Tools > Filtering > Difference of Gaussian (clesperanto)`
* `Tools > Filtering > Laplacian of Gaussian (clesperanto)`
* `Tools > Filtering / background removal > Subtract Gaussian background (clesperanto)`
* `Tools > Filtering / background removal > Divide by Gaussian background (clesperanto)`
* `Tools > Filtering > Small Hessian eigenvalue (clesperanto)`
* `Tools > Filtering > Large Hessian eigenvalue (clesperanto)`
* `Tools > Filtering / edge enhancement > Standard deviation (box, clesperanto)`
* `Tools > Filtering / edge enhancement > Variance (box, clesperanto)`
* `Tools > Measurement > Extension ratio map (clesperanto)`
* `Tools > Measurement > Pixel count map (clesperanto)`
* `Tools > Image math> Reciprocal (clesperanto)`
* `Tools > Image math > Absolute difference (clesperanto)`
* `Tools > Image math > Squared difference (clesperanto)`
* `Tools > Segmentation / labeling > Eroded-Otsu-labeling (clesperanto)`
* `Tools > Segmentation / labeling > Gauss-Otsu-labeling (clesperanto)`
* `Tools > Segmentation post-processing > Binary AND / intersection (clesperanto)`
* `Tools > Segmentation post-processing > Binary not (clesperanto)`
* `Tools > Segmentation post-processing > Binary OR / union (clesperanto)`
* `Tools > Segmentation post-processing > Binary subtract (clesperanto)`
* `Tools > Segmentation post-processing > Binary XOR (clesperanto)`
* `Tools > Segmentation post-processing > Exclude large labels (clesperanto)`
* `Tools > Segmentation post-processing > Exclude small labels (clesperanto)`
* `Tools > Segmentation post-processing > Exclude labels with map values out of range (clesperanto)`
* `Tools > Segmentation post-processing > Exclude labels with map values within range (clesperanto)`
* `Tools > Segmentation post-processing > Extend labels via Voronoi (clesperanto)`
* `Tools > Segmentation post-processing > Reduce labels to centroids (clesperanto)`
* `Tools > Segmentation post-processing > Reduce labels to label edges (clesperanto)`
* `Tools > Segmentation post-processing > Dilate Labels (clesperanto)`
* `Tools > Segmentation post-processing > Erode Labels (clesperanto)`
* `Tools > Segmentation post-processing > Opening Labels (clesperanto)`
* `Tools > Segmentation post-processing > Closing Labels (clesperanto)`