| Value | Google Feature | Description |
|---|---|---|
| iegrWebDetection | WEB_DETECTION | Run web detection |
| iegrSafeSearchDetection | SAFE_SEARCH_DETECTION | Run Safe Search to detect potentially unsafe or undesirable content |
| iegrLabelDetection | LABEL_DETECTION | Run label detection |
| iegrObjectLocalization | OBJECT_LOCALIZATION | Run localizer for object detection |
| iegrFaceDetection | FACE_DETECTION | Run face detection |
| iegrLandmarkDetection | LANDMARK_DETECTION | Run landmark detection |
| iegrLogoDetection | LOGO_DETECTION | Run logo detection |
| iegrTextDetection | TEXT_DETECTION | 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 iegrDocumentTextDetection instead |
| iegrDocumentTextDetection | DOCUMENT_TEXT_DETECTION | Run dense text document OCR. Takes precedence over iegrTextDetection |
| iegrCropHintsDetection | CROP_HINTS | Run crop hints |
| iegrProductSearch | PRODUCT_SEARCH | Run Product Search (Unhandled) |
| iegrImageProperties | IMAGE_PROPERTIES | Compute a set of image properties, such as the image's dominant colors |