azure-ai-vision-imageanalysis-py non-hero scenarios
These scenarios are intentionally separate from hero flows in SKILL.md.
They cover secondary/advanced patterns typically used after the primary end-to-end path is working.
Tags
result = client.analyze_from_url(
image_url=image_url,
visual_features=[VisualFeatures.TAGS]
)
if result.tags:
for tag in result.tags.list:
print(f"Tag: {tag.name} (confidence: {tag.confidence:.2f})")Object Detection
result = client.analyze_from_url(
image_url=image_url,
visual_features=[VisualFeatures.OBJECTS]
)
if result.objects:
for obj in result.objects.list:
print(f"Object: {obj.tags[0].name}")
print(f" Confidence: {obj.tags[0].confidence:.2f}")
box = obj.bounding_box
print(f" Bounding box: x={box.x}, y={box.y}, w={box.width}, h={box.height}")OCR (Text Extraction)
result = client.analyze_from_url(
image_url=image_url,
visual_features=[VisualFeatures.READ]
)
if result.read:
for block in result.read.blocks:
for line in block.lines:
print(f"Line: {line.text}")
print(f" Bounding polygon: {line.bounding_polygon}")
# Word-level details
for word in line.words:
print(f" Word: {word.text} (confidence: {word.confidence:.2f})")People Detection
result = client.analyze_from_url(
image_url=image_url,
visual_features=[VisualFeatures.PEOPLE]
)
if result.people:
for person in result.people.list:
print(f"Person detected:")
print(f" Confidence: {person.confidence:.2f}")
box = person.bounding_box
print(f" Bounding box: x={box.x}, y={box.y}, w={box.width}, h={box.height}")Smart Cropping
result = client.analyze_from_url(
image_url=image_url,
visual_features=[VisualFeatures.SMART_CROPS],
smart_crops_aspect_ratios=[0.9, 1.33, 1.78] # Portrait, 4:3, 16:9
)
if result.smart_crops:
for crop in result.smart_crops.list:
print(f"Aspect ratio: {crop.aspect_ratio}")
box = crop.bounding_box
print(f" Crop region: x={box.x}, y={box.y}, w={box.width}, h={box.height}")Async Client
from azure.ai.vision.imageanalysis.aio import ImageAnalysisClient
from azure.identity.aio import DefaultAzureCredential
async def analyze_image():
async with DefaultAzureCredential() as credential:
async with ImageAnalysisClient(
endpoint=endpoint,
credential=credential
) as client:
result = await client.analyze_from_url(
image_url=image_url,
visual_features=[VisualFeatures.CAPTION]
)
print(result.caption.text)Visual Features
| Feature | Description |
|---|---|
CAPTION |
Single sentence describing the image |
DENSE_CAPTIONS |
Captions for multiple regions |
TAGS |
Content tags (objects, scenes, actions) |
OBJECTS |
Object detection with bounding boxes |
READ |
OCR text extraction |
PEOPLE |
People detection with bounding boxes |
SMART_CROPS |
Suggested crop regions for thumbnails |
Error Handling
from azure.core.exceptions import HttpResponseError
try:
result = client.analyze_from_url(
image_url=image_url,
visual_features=[VisualFeatures.CAPTION]
)
except HttpResponseError as e:
print(f"Status code: {e.status_code}")
print(f"Reason: {e.reason}")
print(f"Message: {e.error.message}")Image Requirements
- Formats: JPEG, PNG, GIF, BMP, WEBP, ICO, TIFF, MPO
- Max size: 20 MB
- Dimensions: 50x50 to 16000x16000 pixels