Run dense text document OCR. Takes precedence when both
DOCUMENT_TEXT_DETECTION and TEXT_DETECTION are present.
FaceDetection
Run face detection.
ImageProperties
Compute a set of image properties, such as the
image's dominant colors.
LabelDetection
Run label detection.
LandmarkDetection
Run landmark detection.
LogoDetection
Run logo detection.
ObjectLocalization
Run localizer for object detection.
ProductSearch
Run Product Search.
SafeSearchDetection
Run Safe Search to detect potentially unsafe
or undesirable content.
TextDetection
Run text detection / optical character recognition (OCR). Text detection
is optimized for areas of text within a larger image; if the image is
a document, use DOCUMENT_TEXT_DETECTION instead.
