R: Access to the 'Google Cloud Vision' API for Image Recognition, OCR and Labeling

# Access to the 'Google Cloud Vision' API for Image Recognition, OCR and Labeling

## Documentation for package ‘googleCloudVisionR’ version 0.2.0

- DESCRIPTION file
- Package NEWS
- Package README

## Help Pages

call_vision_api | helper function to send POST request to the Google Vision API
create_request_body | helper function to create json for response request
create_single_image_request | helper function to create a list of details of one image annotation request
encode_image | helper function to base64 encode the image file
extractor | helper function code to provide an extractor function for different feature types
extract_annotations | helper function code to extract the annotations
extract_error | helper function code to extract error from API response into a data.table
extract_response | helper function code to extract the response data.frame
face_detection_extractor | helper function code to extract API response into a data.table for given feature type
gcv_get_available_feature_types | helper function code to record available feature types
gcv_get_image_annotations | Get parsed image annotations from the Google Cloud Vision API
gcv_get_raw_response | Get raw API response from the Google Cloud Vision API
gcv_get_response | helper function to call the API for one batch of images
get_bounding_boxes | helper function code to extract Bounding Box x,y coordinates for an API response element
get_invalid_image_paths | helper function to validate input image paths
label_detection_extractor | helper function code to extract API response into a data.table for given feature type
landmark_detection_extractor | helper function code to extract API response into a data.table for given feature type
logo_detection_extractor | helper function code to extract API response into a data.table for given feature type
ocr_extractor | helper function code to extract API response into a data.table for given feature type
split_to_chunks | helper function to split a vector to approximately equally sized chunks