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Annotations

Get annotations into memory

To get image annotations into the memory:

annotations = sa.get_annotations(
    project = "Project Name", 
    items = ["fruit.png"])

This will return a list of Python dictionaries.

This is the output:

[
    {
        "metadata": {
            "height": 1024,
            "width": 1024,
            "name": "fruit.png",
            "lastAction": {
                "email": "[email protected]",
                "timestamp": 1627395705911
            }
        },
        "instances": [
            {
                "attributes": [],
                "classId": 816825,
                "className": "apple",
                "createdAt": "2021-06-09T11:24:54.794Z",
                "createdBy": {
                    "email": "[email protected]",
                    "role": "Annotator"
                },
                "creationType": "Manual",
                "error": null,
                "groupId": 0,
                "locked": false,
                "pointLabels": {},
                "points": {
                    "points": [
                        [126.35, 748.26],
                        [384.42, 921.96]
                    ]
                },
                "probability": 100,
                "trackingId": null,
                "type": "bbox",
                "updatedAt": "2021-07-27T14:21:52.904Z",
                "updatedBy": {
                    "email": "[email protected]",
                    "role": "QA"
                },
                "visible": true
            }
        ],
        "tags": [],
        "comments": []
    }
]

Download annotations

To download image annotations:

sa.download_image_annotations(
    project = "Project Name",
    image_name = "image_name.png",
    local_dir_path = "./annotations")
🚧

Use the prepare_export functionality to download images or annotations in bulk. Learn more here.

To download annotations from a project's root:

sa.download_annotations(
   project="Project 1", 
   path="/Users/projectadmin/Desktop/Annotations"
)

To download all the annotations from a project:

sa.download_annotations(
   project="Project 1", 
   path="/Users/projectadmin/Desktop/Annotations", 
   recursive=True
)

To download specific items:

# step 1: query completed annotations and store item names

completed_item_names = [
    item['name'] for item in sa.query(
        project="Image Project",
        query="metadata(status = Completed)" 
    )
]

print(f'there are {len(completed_item_names)} completed items names are: {completed_item_names}')

# step 2: download annotations by providing the list of item names

sa.download_annotations(
   project="Image Project", 
   path="/Users/projectadmin/Desktop/Annotations", 
   items = completed_item_names,
   recursive=True
)

To download annotations using a specific JSON structure:

# step 1: define the converter function that accepts the SA annotation dict as an argument

def convert(sa_annotation): 
    filtered_boxes = [
        instance for instance in sa_annotation['instances'] if instance['type'] == 'bbox' 
    ]
    boxes = list(map(lambda box: 
            {
                'type': box['type'],
                'class': box['className'],
                'coordinates': box['points']
            }, filtered_boxes) 
    )
    return {'objects': boxes}

#step 2: pass the converter function to callback parameter

sa.download_annotations(
   project="Project 1", 
   path="/Users/projectadmin/Desktop/Annotations", 
   items=["Image 1.jpeg"],
   recursive=True,
   callback=convert
)

Updated 4 months ago