comp_info | Informations about the components of an imabe object. |
count_obj | Number of objects in a tuple. |
equal_obj | Compare image objects regarding equality. |
equal_region | Test whether the regions of two objects are identical. |
obj_class | Name of the class of an imabe object. |
obj_def | Test whether an object is already deleted. |
obj_info | Information about the input image objects last used. |