func Example_NewImageFromReader() {
f, err := os.Open("path/to/image.jpg")
if err != nil {
// TODO: handle error.
}
img, err := vision.NewImageFromReader(f)
if err != nil {
// TODO: handle error.
}
fmt.Println(img)
}
// findLabels gets labels from the Vision API for an image at the given file path.
func findLabels(file string) ([]string, error) {
// [START init]
ctx := context.Background()
// Create the client.
client, err := vision.NewClient(ctx)
if err != nil {
return nil, err
}
// [END init]
// [START request]
// Open the file.
f, err := os.Open(file)
if err != nil {
return nil, err
}
image, err := vision.NewImageFromReader(f)
if err != nil {
return nil, err
}
// Perform the request.
annotations, err := client.DetectLabels(ctx, image, 10)
if err != nil {
return nil, err
}
// [END request]
// [START transform]
var labels []string
for _, annotation := range annotations {
labels = append(labels, annotation.Description)
}
return labels, nil
// [END transform]
}