From the Cloud Console, create a service account,
download its json credentials file, then set the
GOOGLE_APPLICATION_CREDENTIALS environment variable:
go run detect.go main.go ../testdata/cat.jpg
go run detect.go main.go gs://...
go run detect.go main.go https://...
Modifiying the source code
Do not edit the detect.go file directly. In order to modify it edit the code at vision/detect/generated/sample-template.go and run go generate at the command line: