def parse_exif_values(self, _path_file, _force_focal, _force_ccd):
# Disable exifread log
logging.getLogger('exifread').setLevel(logging.CRITICAL)
with open(_path_file, 'rb') as f:
tags = exifread.process_file(f, details=False)
try:
if 'Image Make' in tags:
self.camera_make = tags['Image Make'].values.encode('utf8')
if 'Image Model' in tags:
self.camera_model = tags['Image Model'].values.encode(
'utf8')
if 'EXIF FocalLength' in tags:
self.focal_length = self.float_values(
tags['EXIF FocalLength'])[0]
if 'GPS GPSAltitude' in tags:
self.altitude = self.float_values(
tags['GPS GPSAltitude'])[0]
if 'GPS GPSAltitudeRef' in tags and self.int_values(
tags['GPS GPSAltitudeRef'])[0] > 0:
self.altitude *= -1
if 'GPS GPSLatitude' in tags and 'GPS GPSLatitudeRef' in tags:
self.latitude = self.dms_to_decimal(
tags['GPS GPSLatitude'], tags['GPS GPSLatitudeRef'])
if 'GPS GPSLongitude' in tags and 'GPS GPSLongitudeRef' in tags:
self.longitude = self.dms_to_decimal(
tags['GPS GPSLongitude'], tags['GPS GPSLongitudeRef'])
except IndexError as e:
log.ODM_WARNING("Cannot read EXIF tags for %s: %s" %
(_path_file, e.message))
if self.camera_make and self.camera_model:
self.make_model = sensor_string(self.camera_make,
self.camera_model)
# needed to do that since sometimes metadata contains wrong data
img = cv2.imread(_path_file)
self.width = img.shape[1]
self.height = img.shape[0]
# force focal and ccd_width with user parameter
if _force_focal:
self.focal_length = _force_focal
if _force_ccd:
self.ccd_width = _force_ccd
# find ccd_width from file if needed
if self.ccd_width is None and self.camera_model is not None:
# load ccd_widths from file
ccd_widths = system.get_ccd_widths()
# search ccd by camera model
key = [x for x in ccd_widths.keys() if self.make_model in x]
# convert to float if found
if key:
self.ccd_width = float(ccd_widths[key[0]])
else:
log.ODM_WARNING(
'Could not find ccd_width in file. Use --force-ccd or edit the sensor_data.json '
'file to manually input ccd width')
def georeference_with_gcp(self,
gcp_file,
output_coords_file,
output_gcp_file,
rerun=False):
if not io.file_exists(output_coords_file) or not io.file_exists(
output_gcp_file) or rerun:
gcp = GCPFile(gcp_file)
if gcp.exists():
# Create coords file, we'll be using this later
# during georeferencing
with open(output_coords_file, 'w') as f:
coords_header = gcp.wgs84_utm_zone()
f.write(coords_header + "\n")
log.ODM_DEBUG("Generated coords file from GCP: %s" %
coords_header)
# Convert GCP file to a UTM projection since the rest of the pipeline
# does not handle other SRS well.
rejected_entries = []
utm_gcp = GCPFile(
gcp.create_utm_copy(
output_gcp_file,
filenames=[p.filename for p in self.photos],
rejected_entries=rejected_entries,
include_extras=False))
if not utm_gcp.exists():
raise RuntimeError(
"Could not project GCP file to UTM. Please double check your GCP file for mistakes."
)
for re in rejected_entries:
log.ODM_WARNING("GCP line ignored (image not found): %s" %
str(re))
if utm_gcp.entries_count() > 0:
log.ODM_INFO(
"%s GCP points will be used for georeferencing" %
utm_gcp.entries_count())
else:
raise RuntimeError(
"A GCP file was provided, but no valid GCP entries could be used. Note that the GCP file is case sensitive (\".JPG\" is not the same as \".jpg\")."
)
self.gcp = utm_gcp
else:
log.ODM_WARNING("GCP file does not exist: %s" % gcp_file)
return
else:
log.ODM_INFO("Coordinates file already exist: %s" %
output_coords_file)
log.ODM_INFO("GCP file already exist: %s" % output_gcp_file)
self.gcp = GCPFile(output_gcp_file)
self.georef = ODM_GeoRef.FromCoordsFile(output_coords_file)
return self.georef
def parse_exif_values(self, _path_file):
# Disable exifread log
logging.getLogger('exifread').setLevel(logging.CRITICAL)
with open(_path_file, 'rb') as f:
tags = exifread.process_file(f, details=False)
try:
if 'Image Make' in tags:
self.camera_make = tags['Image Make'].values.encode('utf8')
if 'Image Model' in tags:
self.camera_model = tags['Image Model'].values.encode('utf8')
if 'GPS GPSAltitude' in tags:
self.altitude = self.float_values(tags['GPS GPSAltitude'])[0]
if 'GPS GPSAltitudeRef' in tags and self.int_values(tags['GPS GPSAltitudeRef'])[0] > 0:
self.altitude *= -1
if 'GPS GPSLatitude' in tags and 'GPS GPSLatitudeRef' in tags:
self.latitude = self.dms_to_decimal(tags['GPS GPSLatitude'], tags['GPS GPSLatitudeRef'])
if 'GPS GPSLongitude' in tags and 'GPS GPSLongitudeRef' in tags:
self.longitude = self.dms_to_decimal(tags['GPS GPSLongitude'], tags['GPS GPSLongitudeRef'])
except IndexError as e:
log.ODM_WARNING("Cannot read EXIF tags for %s: %s" % (_path_file, e.message))
if self.camera_make and self.camera_model:
self.make_model = sensor_string(self.camera_make, self.camera_model)
# needed to do that since sometimes metadata contains wrong data
try:
self.width, self.height = get_image_size.get_image_size(_path_file)
except get_image_size.UnknownImageFormat:
# Fallback to slower cv2
img = cv2.imread(_path_file)
self.width = img.shape[1]
self.height = img.shape[0]
def parse_exif_values(self, _path_file):
# Disable exifread log
logging.getLogger('exifread').setLevel(logging.CRITICAL)
with open(_path_file, 'rb') as f:
tags = exifread.process_file(f, details=False)
try:
if 'Image Make' in tags:
self.camera_make = tags['Image Make'].values.encode('utf8')
if 'Image Model' in tags:
self.camera_model = tags['Image Model'].values.encode(
'utf8')
if 'GPS GPSAltitude' in tags:
self.altitude = self.float_values(
tags['GPS GPSAltitude'])[0]
if 'GPS GPSAltitudeRef' in tags and self.int_values(
tags['GPS GPSAltitudeRef'])[0] > 0:
self.altitude *= -1
if 'GPS GPSLatitude' in tags and 'GPS GPSLatitudeRef' in tags:
self.latitude = self.dms_to_decimal(
tags['GPS GPSLatitude'], tags['GPS GPSLatitudeRef'])
if 'GPS GPSLongitude' in tags and 'GPS GPSLongitudeRef' in tags:
self.longitude = self.dms_to_decimal(
tags['GPS GPSLongitude'], tags['GPS GPSLongitudeRef'])
except IndexError as e:
log.ODM_WARNING("Cannot read EXIF tags for %s: %s" %
(_path_file, e.message))
if self.camera_make and self.camera_model:
self.make_model = sensor_string(self.camera_make,
self.camera_model)
self.width, self.height = get_image_size.get_image_size(_path_file)
def parse_pyexiv2_values(self, _path_file, _force_focal, _force_ccd):
# read image metadata
metadata = pyexiv2.ImageMetadata(_path_file)
metadata.read()
# loop over image tags
for key in metadata:
# try/catch tag value due to weird bug in pyexiv2
# ValueError: invalid literal for int() with base 10: ''
GPS = 'Exif.GPSInfo.GPS'
try:
# parse tag names
if key == 'Exif.Image.Make':
self.camera_make = metadata[key].value
elif key == 'Exif.Image.Model':
self.camera_model = metadata[key].value
elif key == 'Exif.Photo.FocalLength':
self.focal_length = float(metadata[key].value)
elif key == GPS + 'Latitude':
self.latitude = self.dms_to_decimal(*metadata[key].value +
[metadata[GPS + 'LatitudeRef'].value])
elif key == GPS + 'Longitude':
self.longitude = self.dms_to_decimal(*metadata[key].value +
[metadata[GPS + 'LongitudeRef'].value])
elif key == GPS + 'Altitude':
self.altitude = float(metadata[key].value)
if metadata[GPS + 'AltitudeRef'] and int(metadata[GPS + 'AltitudeRef'].value) > 0:
self.altitude *= -1.
except (pyexiv2.ExifValueError, ValueError) as e:
pass
except KeyError as e:
log.ODM_DEBUG('Tag not set')
except NotImplementedError as e:
pass
if self.camera_make and self.camera_model:
self.make_model = sensor_string(self.camera_make, self.camera_model)
# needed to do that since sometimes metadata contains wrong data
img = cv2.imread(_path_file)
self.width = img.shape[1]
self.height = img.shape[0]
# force focal and ccd_width with user parameter
if _force_focal:
self.focal_length = _force_focal
if _force_ccd:
self.ccd_width = _force_ccd
# find ccd_width from file if needed
if self.ccd_width is None and self.camera_model is not None:
# load ccd_widths from file
ccd_widths = system.get_ccd_widths()
# search ccd by camera model
key = [x for x in ccd_widths.keys() if self.make_model in x]
# convert to float if found
if key:
self.ccd_width = float(ccd_widths[key[0]])
else:
log.ODM_WARNING('Could not find ccd_width in file. Use --force-ccd or edit the sensor_data.json '
'file to manually input ccd width')
def parse_coordinate_system(self, _file):
"""Write attributes to jobOptions from coord file"""
# check for coordinate file existence
if not io.file_exists(_file):
log.ODM_WARNING('Could not find file %s' % _file)
return
with open(_file) as f:
# extract reference system and utm zone from first line.
# We will assume the following format:
# 'WGS84 UTM 17N' or 'WGS84 UTM 17N \n'
line = f.readline().rstrip()
log.ODM_DEBUG('Line: %s' % line)
ref = line.split(' ')
# match_wgs_utm = re.search('WGS84 UTM (\d{1,2})(N|S)', line, re.I)
if ref[0] == 'WGS84' and ref[1] == 'UTM': # match_wgs_utm:
datum = ref[0]
utm_pole = ref[2][len(ref[2]) - 1]
utm_zone = int(ref[2][:len(ref[2]) - 1])
return Proj(proj="utm", zone=utm_zone, datum=datum, no_defs=True)
elif '+proj' in line:
return Proj(line.strip('\''))
elif 'epsg' in line.lower():
return Proj(init=line)
else:
raise log.ODM_ERROR('Could not parse coordinates. Bad CRS supplied: %s' % line)
def georeference_with_gps(self, images_path, output_coords_file, rerun=False):
try:
if not io.file_exists(output_coords_file) or rerun:
location.extract_utm_coords(self.photos, images_path, output_coords_file)
else:
log.ODM_INFO("Coordinates file already exist: %s" % output_coords_file)
self.georef = ODM_GeoRef.FromCoordsFile(output_coords_file)
except:
log.ODM_WARNING('Could not generate coordinates file. The orthophoto will not be georeferenced.')
self.gcp = GCPFile(None)
return self.georef
def parse_coordinate_system(self, _file):
"""Write attributes to jobOptions from coord file"""
# check for coordinate file existence
if not io.file_exists(_file):
log.ODM_WARNING('Could not find file %s' % _file)
return
with open(_file) as f:
# extract reference system and utm zone from first line.
# We will assume the following format:
# 'WGS84 UTM 17N' or 'WGS84 UTM 17N \n'
line = f.readline().rstrip()
log.ODM_DEBUG('Line: %s' % line)
ref = line.split(' ')
# match_wgs_utm = re.search('WGS84 UTM (\d{1,2})(N|S)', line, re.I)
try:
if ref[0] == 'WGS84' and ref[1] == 'UTM': # match_wgs_utm:
datum = ref[0]
utm_pole = (ref[2][len(ref[2]) - 1]).upper()
utm_zone = int(ref[2][:len(ref[2]) - 1])
proj_args = {
'proj': "utm",
'zone': utm_zone,
'datum': datum,
'no_defs': True
}
if utm_pole == 'S':
proj_args['south'] = True
return Proj(**proj_args)
elif '+proj' in line:
return Proj(line.strip('\''))
elif 'epsg' in line.lower():
return Proj(init=line)
else:
log.ODM_ERROR(
'Could not parse coordinates. Bad CRS supplied: %s' %
line)
except RuntimeError as e:
log.ODM_ERROR(
'Uh oh! There seems to be a problem with your GCP file.\n\n'
'The line: %s\n\n'
'Is not valid. Projections that are valid include:\n'
' - EPSG:*****\n'
' - WGS84 UTM **(N|S)\n'
' - Any valid proj4 string (for example, +proj=utm +zone=32 +north +ellps=WGS84 +datum=WGS84 +units=m +no_defs)\n\n'
'Modify your GCP file and try again.' % line)
raise RuntimeError(e)
def FromCoordsFile(coords_file):
# check for coordinate file existence
if not io.file_exists(coords_file):
log.ODM_WARNING('Could not find file %s' % coords_file)
return
srs = None
with open(coords_file) as f:
# extract reference system and utm zone from first line.
# We will assume the following format:
# 'WGS84 UTM 17N' or 'WGS84 UTM 17N \n'
line = f.readline().rstrip()
srs = location.parse_srs_header(line)
return ODM_GeoRef(srs)
def get_xmp(self, file):
img_str = str(file.read())
xmp_start = img_str.find('<x:xmpmeta')
xmp_end = img_str.find('</x:xmpmeta')
if xmp_start < xmp_end:
xmp_str = img_str[xmp_start:xmp_end + 12]
try:
xdict = x2d.parse(xmp_str)
except ExpatError:
from bs4 import BeautifulSoup
xmp_str = str(BeautifulSoup(xmp_str, 'xml'))
xdict = x2d.parse(xmp_str)
log.ODM_WARNING("%s has malformed XMP XML (but we fixed it)" %
self.filename)
xdict = xdict.get('x:xmpmeta', {})
xdict = xdict.get('rdf:RDF', {})
xdict = xdict.get('rdf:Description', {})
if isinstance(xdict, list):
return xdict
else:
return [xdict]
else:
return []
def parse_exif_values(self, _path_file):
# Disable exifread log
logging.getLogger('exifread').setLevel(logging.CRITICAL)
with open(_path_file, 'rb') as f:
tags = exifread.process_file(f, details=False)
try:
if 'Image Make' in tags:
self.camera_make = tags['Image Make'].values.encode('utf8')
if 'Image Model' in tags:
self.camera_model = tags['Image Model'].values.encode(
'utf8')
if 'GPS GPSAltitude' in tags:
self.altitude = self.float_value(tags['GPS GPSAltitude'])
if 'GPS GPSAltitudeRef' in tags and self.int_value(
tags['GPS GPSAltitudeRef']) > 0:
self.altitude *= -1
if 'GPS GPSLatitude' in tags and 'GPS GPSLatitudeRef' in tags:
self.latitude = self.dms_to_decimal(
tags['GPS GPSLatitude'], tags['GPS GPSLatitudeRef'])
if 'GPS GPSLongitude' in tags and 'GPS GPSLongitudeRef' in tags:
self.longitude = self.dms_to_decimal(
tags['GPS GPSLongitude'], tags['GPS GPSLongitudeRef'])
except IndexError as e:
log.ODM_WARNING("Cannot read basic EXIF tags for %s: %s" %
(_path_file, e.message))
try:
if 'Image Tag 0xC61A' in tags:
self.black_level = self.list_values(
tags['Image Tag 0xC61A'])
elif 'BlackLevel' in tags:
self.black_level = self.list_values(tags['BlackLevel'])
if 'EXIF ExposureTime' in tags:
self.exposure_time = self.float_value(
tags['EXIF ExposureTime'])
if 'EXIF FNumber' in tags:
self.fnumber = self.float_value(tags['EXIF FNumber'])
if 'EXIF ISOSpeed' in tags:
self.iso_speed = self.int_value(tags['EXIF ISOSpeed'])
elif 'EXIF PhotographicSensitivity' in tags:
self.iso_speed = self.int_value(
tags['EXIF PhotographicSensitivity'])
elif 'EXIF ISOSpeedRatings' in tags:
self.iso_speed = self.int_value(
tags['EXIF ISOSpeedRatings'])
if 'Image BitsPerSample' in tags:
self.bits_per_sample = self.int_value(
tags['Image BitsPerSample'])
if 'EXIF DateTimeOriginal' in tags:
str_time = tags['EXIF DateTimeOriginal'].values.encode(
'utf8')
utc_time = datetime.strptime(str_time, "%Y:%m:%d %H:%M:%S")
subsec = 0
if 'EXIF SubSecTime' in tags:
subsec = self.int_value(tags['EXIF SubSecTime'])
negative = 1.0
if subsec < 0:
negative = -1.0
subsec *= -1.0
subsec = float('0.{}'.format(int(subsec)))
subsec *= negative
ms = subsec * 1e3
utc_time += timedelta(milliseconds=ms)
timezone = pytz.timezone('UTC')
epoch = timezone.localize(datetime.utcfromtimestamp(0))
self.utc_time = (timezone.localize(utc_time) -
epoch).total_seconds() * 1000.0
except Exception as e:
log.ODM_WARNING("Cannot read extended EXIF tags for %s: %s" %
(_path_file, e.message))
# Extract XMP tags
f.seek(0)
xmp = self.get_xmp(f)
for tags in xmp:
try:
band_name = self.get_xmp_tag(
tags, ['Camera:BandName', '@Camera:BandName'])
if band_name is not None:
self.band_name = band_name.replace(" ", "")
self.set_attr_from_xmp_tag(
'band_index',
tags,
[
'DLS:SensorId', # Micasense RedEdge
'@Camera:RigCameraIndex', # Parrot Sequoia, Sentera 21244-00_3.2MP-GS-0001
'Camera:RigCameraIndex', # MicaSense Altum
])
self.set_attr_from_xmp_tag(
'radiometric_calibration', tags, [
'MicaSense:RadiometricCalibration',
])
self.set_attr_from_xmp_tag('vignetting_center', tags, [
'Camera:VignettingCenter',
'Sentera:VignettingCenter',
])
self.set_attr_from_xmp_tag('vignetting_polynomial', tags, [
'Camera:VignettingPolynomial',
'Sentera:VignettingPolynomial',
])
self.set_attr_from_xmp_tag('horizontal_irradiance', tags,
['Camera:HorizontalIrradiance'],
float)
self.set_attr_from_xmp_tag(
'irradiance_scale_to_si', tags,
['Camera:IrradianceScaleToSIUnits'], float)
self.set_attr_from_xmp_tag('sun_sensor', tags, [
'Camera:SunSensor',
], float)
self.set_attr_from_xmp_tag('spectral_irradiance', tags, [
'Camera:SpectralIrradiance',
'Camera:Irradiance',
], float)
if 'DLS:Yaw' in tags:
self.set_attr_from_xmp_tag('dls_yaw', tags,
['DLS:Yaw'], float)
self.set_attr_from_xmp_tag('dls_pitch', tags,
['DLS:Pitch'], float)
self.set_attr_from_xmp_tag('dls_roll', tags,
['DLS:Roll'], float)
except Exception as e:
log.ODM_WARNING("Cannot read XMP tags for %s: %s" %
(_path_file, e.message))
# self.set_attr_from_xmp_tag('center_wavelength', tags, [
# 'Camera:CentralWavelength'
# ], float)
# self.set_attr_from_xmp_tag('bandwidth', tags, [
# 'Camera:WavelengthFWHM'
# ], float)
self.width, self.height = get_image_size.get_image_size(_path_file)
# Sanitize band name since we use it in folder paths
self.band_name = re.sub('[^A-Za-z0-9]+', '', self.band_name)
def parse_exif_values(self, _path_file):
# Disable exifread log
logging.getLogger('exifread').setLevel(logging.CRITICAL)
with open(_path_file, 'rb') as f:
tags = exifread.process_file(f, details=False)
try:
if 'Image Make' in tags:
self.camera_make = tags['Image Make'].values.encode('utf8')
if 'Image Model' in tags:
self.camera_model = tags['Image Model'].values.encode(
'utf8')
if 'GPS GPSAltitude' in tags:
self.altitude = self.float_values(
tags['GPS GPSAltitude'])[0]
if 'GPS GPSAltitudeRef' in tags and self.int_values(
tags['GPS GPSAltitudeRef'])[0] > 0:
self.altitude *= -1
if 'GPS GPSLatitude' in tags and 'GPS GPSLatitudeRef' in tags:
self.latitude = self.dms_to_decimal(
tags['GPS GPSLatitude'], tags['GPS GPSLatitudeRef'])
if 'GPS GPSLongitude' in tags and 'GPS GPSLongitudeRef' in tags:
self.longitude = self.dms_to_decimal(
tags['GPS GPSLongitude'], tags['GPS GPSLongitudeRef'])
except IndexError as e:
log.ODM_WARNING("Cannot read EXIF tags for %s: %s" %
(_path_file, e.message))
# Extract XMP tags
f.seek(0)
xmp = self.get_xmp(f)
# Find band name and camera index (if available)
camera_index_tags = [
'DLS:SensorId', # Micasense RedEdge
'@Camera:RigCameraIndex', # Parrot Sequoia
'Camera:RigCameraIndex', # MicaSense Altum
]
for tags in xmp:
if 'Camera:BandName' in tags:
cbt = tags['Camera:BandName']
band_name = None
if isinstance(cbt, string_types):
band_name = str(tags['Camera:BandName'])
elif isinstance(cbt, dict):
items = cbt.get('rdf:Seq', {}).get('rdf:li', {})
if items:
band_name = " ".join(items)
if band_name is not None:
self.band_name = band_name.replace(" ", "")
else:
log.ODM_WARNING(
"Camera:BandName tag found in XMP, but we couldn't parse it. Multispectral bands might be improperly classified."
)
for cit in camera_index_tags:
if cit in tags:
self.band_index = int(tags[cit])
self.width, self.height = get_image_size.get_image_size(_path_file)
# Sanitize band name since we use it in folder paths
self.band_name = re.sub('[^A-Za-z0-9]+', '', self.band_name)
