Check availability of an image — containsImage • SPATA2

Checks if the input object has an image in the respective slot or if the slot is empty.

containsImage(object, ...)

# S4 method for class 'ANY'
containsImage(object, img_name = activeImage(object), error = FALSE)

# S4 method for class 'SpatialAnnotation'
containsImage(object, error = FALSE)

# S4 method for class 'HistoImage'
containsImage(object, error = FALSE)

Arguments

object: An object of class SPATA2 or, in case of S4 generics, objects of classes for which a method has been defined.
...: Used to absorb deprecated arguments or functions.
img_name: Character value. The name of the image of interest. If NULL, the active image is chosen by default. Either way, must be one of getImageNames().
error: Logical. If TRUE and the input is invalid the function throws an error.

Value

Logical value.