def detect_crop_hints_uri(uri):
"""Detects crop hints in the file located in Google Cloud Storage."""
from google.cloud import vision
client = vision.ImageAnnotatorClient()
image = vision.Image()
image.source.image_uri = uri
crop_hints_params = vision.CropHintsParams(aspect_ratios=[1.77])
image_context = vision.ImageContext(crop_hints_params=crop_hints_params)
response = client.crop_hints(image=image, image_context=image_context)
hints = response.crop_hints_annotation.crop_hints
for n, hint in enumerate(hints):
print('\nCrop Hint: {}'.format(n))
vertices = ([
'({},{})'.format(vertex.x, vertex.y)
for vertex in hint.bounding_poly.vertices
])
print('bounds: {}'.format(','.join(vertices)))
if response.error.message:
raise Exception('{}\nFor more info on error messages, check: '
'https://cloud.google.com/apis/design/errors'.format(
response.error.message))
def detect_crop_hints(path):
"""Detects crop hints in an image."""
from google.cloud import vision
import io
client = vision.ImageAnnotatorClient()
# [START vision_python_migration_crop_hints]
with io.open(path, 'rb') as image_file:
content = image_file.read()
image = vision.Image(content=content)
crop_hints_params = vision.CropHintsParams(aspect_ratios=[1.77])
image_context = vision.ImageContext(crop_hints_params=crop_hints_params)
response = client.crop_hints(image=image, image_context=image_context)
hints = response.crop_hints_annotation.crop_hints
for n, hint in enumerate(hints):
print('\nCrop Hint: {}'.format(n))
vertices = ([
'({},{})'.format(vertex.x, vertex.y)
for vertex in hint.bounding_poly.vertices
])
print('bounds: {}'.format(','.join(vertices)))
if response.error.message:
raise Exception('{}\nFor more info on error messages, check: '
'https://cloud.google.com/apis/design/errors'.format(
response.error.message))
def get_crop_hint(path):
# [START vision_crop_hints_tutorial_get_crop_hints]
"""Detect crop hints on a single image and return the first result."""
client = vision.ImageAnnotatorClient()
with io.open(path, 'rb') as image_file:
content = image_file.read()
image = vision.Image(content=content)
crop_hints_params = vision.CropHintsParams(aspect_ratios=[1.77])
image_context = vision.ImageContext(crop_hints_params=crop_hints_params)
response = client.crop_hints(image=image, image_context=image_context)
hints = response.crop_hints_annotation.crop_hints
# Get bounds for the first crop hint using an aspect ratio of 1.77.
vertices = hints[0].bounding_poly.vertices
# [END vision_crop_hints_tutorial_get_crop_hints]
return vertices