@nest-excalibur/google-cloud-vision

Google Cloud Vision

Installation

npm i @nest-excalibur/google-cloud-vision --save

Import module: GoogleCloudVisionModule : Installation

import { GoogleCloudVisionModule } from '@nest-excalibur/google-cloud-vision/lib';
 
@Module({
    imports: [
        GoogleCloudVisionModule,
    ],
})
export class SomeModule {
}

Don't forget to export your google-cloud credentials before start the server.

Inject the GoogleCloudVisionService in your controller

 import { GoogleCloudVisionService } from '@nest-excalibur/google-cloud-vision/lib';

@Controller('some')
export class SomeController {
 
    constructor(
        private readonly googleCloudVisionAService: GoogleCloudVisionService,
    ) {
    }

    @Get('inspect-image')
      @UseInterceptors(
        FileInterceptor('image'),
      )
      async inspectImage(@UploadedFile() imageFile) {
        // Fecth the file and get it's buffer.  
        const imageBuffer = imageFile.buffer;
        // Invoke the respective service methods
        const text = await this.googleCloudVisionAService.detectText(imageBuffer);
        const faces = await this.googleCloudVisionAService.detectFaces(imageBuffer);
        const explictContent = await this.googleCloudVisionAService.detectExplicitContent(imageBuffer);
        const objects = await this.googleCloudVisionAService.detectMultipleObjects(imageBuffer);
        const properties = await this.googleCloudVisionAService.detectProperties(imageBuffer);
        return {
          text,
          faces,
          explictContent,
          objects,
          properties,
        };
      }
    }

Service Methods

Method Name	Description	Parameters
detectLabels	Detects labels that are in the image	image-url or buffer
detectFaces	Detects faces that are in the image	image-url or buffer
detectProperties	Gets the more representative properties from the image such as the most relevant colors	image-url or buffer
detectLandMarks	Detects places such as names of buildings, monuments, among other things.	image-url or buffer
detectLogos	Detects all logos that are in the image	image-url or buffer
detectExplicitContent	Detect some type of explicit content in the image such as violence, racism, etc.	image-url or buffer
detectMultipleObjects	Detects all objects that are in the image with their respective ubication polygon coordinates	image-url or buffer
detectText	Detects all text contained in the image	image-url or buffer
detectHandwrittenText	Detects get handwritten text in an image	image-url or buffer