trackpy.grey_dilation¶

trackpy.grey_dilation(image, separation, percentile=64, margin=None, precise=True)¶

Find local maxima whose brightness is above a given percentile.

Parameters:

imagendarray: For best performance, provide an integer-type array. If the type is not of integer-type, the image will be normalized and coerced to uint8.
separationnumber or tuple of numbers: Minimum separation between maxima. See precise for more information.
percentilefloat in range of [0,100], optional: Features must have a peak brighter than pixels in this percentile. This helps eliminate spurious peaks. Default 64.
margininteger or tuple of integers, optional: Zone of exclusion at edges of image. Default is separation / 2.
preciseboolean, optional: Determines whether there will be an extra filtering step (drop_close) discarding features that are too close. Degrades performance. Because of the square kernel used, too many features are returned when precise=False. Default True.