def NDVI(self):
"""The Normalized Difference Vegetation Index"""
label1, label2 = lu.NDVI_BANDS[self.spacecraft]
try:
arr1 = self.__getattr__(label1).data
arr2 = self.__getattr__(label2).data
return ir.normdiff(arr1, arr2)
except AttributeError:
LOGGER.critical("Error accessing bands %s and %s " %
(label1, label2) + "to calculate NDVI.")
raise
def NDVI(self):
"""The Normalized Difference Vegetation Index"""
label1, label2 = lu.NDVI_BANDS[self.spacecraft]
try:
arr1 = self.__getattr__(label1).data
arr2 = self.__getattr__(label2).data
return ir.normdiff(arr1, arr2)
except AttributeError:
LOGGER.critical(
"Error accessing bands %s and %s " % (label1, label2)
+ "to calculate NDVI.")
raise
def get_normdiff(self, label1, label2):
"""Calculate a generic normalized difference index
Arguments:
label1, label2 (str): valid band labels, usually of the form 'bandN'
"""
try:
arr1 = self.__getattr__(label1).data
arr2 = self.__getattr__(label2).data
return ir.normdiff(arr1, arr2)
except AttributeError:
LOGGER.critical(
"Error accessing bands %s and %s to calculate NBR."
% (label1, label2))
raise
def get_NBR(self, reflectance=True):
"""The Normalized Burn Index"""
label1, label2 = lu.NBR_BANDS[self.spacecraft]
try:
if reflectance:
arr1 = self.__getattr__(label1).reflectance
arr2 = self.__getattr__(label2).reflectance
else:
arr1 = self.__getattr__(label1).data
arr2 = self.__getattr__(label2).data
return ir.normdiff(arr1, arr2)
except AttributeError:
LOGGER.critical("Error accessing bands %s and %s " %
(label1, label2) + "to calculate NBR.")
raise
def get_normdiff(self, label1, label2):
"""Calculate a generic normalized difference index
Arguments:
label1, label2 (str): valid band labels, usually of the form 'bandN'
"""
try:
arr1 = self.__getattr__(label1).data
arr2 = self.__getattr__(label2).data
return ir.normdiff(arr1, arr2)
except AttributeError:
LOGGER.critical(
"Error accessing bands %s and %s to calculate NBR." %
(label1, label2))
raise
def get_NBR(self, reflectance=True):
"""The Normalized Burn Index"""
label1, label2 = lu.NBR_BANDS[self.spacecraft]
try:
if reflectance:
arr1 = self.__getattr__(label1).reflectance
arr2 = self.__getattr__(label2).reflectance
else:
arr1 = self.__getattr__(label1).data
arr2 = self.__getattr__(label2).data
return ir.normdiff(arr1, arr2)
except AttributeError:
LOGGER.critical(
"Error accessing bands %s and %s " % (label1, label2)
+ "to calculate NBR.")
raise