Image Annotation and Labelling Services

Get pixel-precise annotated image data at scale to train your computer vision applications.

Image Annotation and Labelling Services

High-quality image annotation, managed at scale, is crucial for speeding up your computer vision projects and enhancing model performance. HitechDigital delivers expert image annotation services tailored to your needs, ensuring your projects meet their full potential. From autonomous vehicles and facial recognition to medical image analysis and product quality control, we provide precise annotations to drive success across various applications.

Our team of 300+ specialized image annotators consistently handle large volumes of 2D and 3D images with precision, reducing costs and saving time. From image classification, bounding boxes, and 3D cuboids to polygons, semantic segmentation, polylines, key points, and more, our experts use every known image annotation technique to create consistent training data. And they address bias, the need for synthetic data, or oversampling to boost model reliability.

With HitechDigital, you benefit from our advanced annotation tools, stringent quality control processes, and a team skilled in the latest AI and computer vision annotation techniques. Whether it’s object detection and tracking, frame extraction from videos, or annotating human posture, our experts ensure the annotation quality you need for successful AI projects.

Create high quality training datasets to power your AI and ML models

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Out Image Annotation Services .

Tailored image annotation techniques to power your AI and ML models for diverse needs.

2D/3D Bounding Box Annotation

2D/3D Bounding Box Annotation

Identify and outline the position and dimensions of objects within images or video frames for object detection and segmentation in computer vision and image processing.

Object Recognition/Detection

Object Recognition/Detection

Identify, classify, and locate objects within images for understanding and interpreting visual information with increased accuracy and detailing for various applications.

Polygon Annotation

Polygon Annotation

Outline objects with a series of straight lines to create a polygon, providing a detailed, precise shape for complex objects in images, aiding in accurate object detection and recognition.

Landmark Annotation

Landmark Annotation

Identify specific points of interest within an image, such as facial features or joints, to capture fine details and enable detailed analysis for recognition and movement tracking applications.

3D Cuboid Annotation

3D Cuboid Annotation

Draw three-dimensional boxes around objects in images or videos, capturing their volume and spatial orientation, crucial for applications requiring depth perception and object interaction analysis.

Semantic Segmentation

Semantic Segmentation

Partition an image into segments, assigning each pixel to a specific class or category, enabling detailed scene understanding by differentiating between object types.

Image Classification

Image Classification

Assign a single label to an entire image, categorizing it into a predefined class based on its content, useful for organizing and searching digital image libraries.

Line & Polyline Annotation

Line & Polyline Annotation

Mark images with straight or connected lines, respectively, to delineate boundaries, paths, or shapes, useful in object identification and scene geometry analysis.

Success Stories.

More than 95% of our clients are recurring, a testament to the unwavering trust and satisfaction our services consistently deliver.

HitechDigital’s annotation and labeling solutions worked wonders for us. They not only provided high-quality text annotations, but also saved us time and resources.

Operations Head, Construction Technology Company, Germany

Thanks, HitechDigital, for best-in-class image annotation services moving through multiple stages of audit and review of labeled data.

Vice President, Operations, Californian Technology Company

HitechDigital annotated human poses accurately making it much easier for our machines to easily detect human activity and interactions in various situations.

Director Operations, Data Analytics Company, USA

Our Customers.

How we annotate data.

Understanding the process

Data Annotation and Labelling Process Click to view in PDF →

Applications of Image Annotation.

Diverse Use Cases of Image Annotation across Industries


  • Identification of cancer cells
  • Segmentation of teeth
  • Analysis of eye condition

Retail and E-commerce

  • Virtual inventory management
  • Customer interaction tracking
  • Enhancement of shopping experience


  • Monitoring of crop health
  • Detecting of diseases
  • Identification of pests

Autonomous Driving

  • Developing Advanced Driver Assistance Systems (ADAS)
  • Detecting road lanes, vehicles, pedestrians,
  • Safer navigation systems

Security & Surveillance

  • Recognize and respond to security threats
  • Monitor high-risk areas and events
  • Manage traffic through camera image analysis.

Aerial Imaging & Urban Planning

  • Map roads, railways, and utility lines
  • Classify land use
  • Classify features in aerial photographs

Image Annotation FAQs.

How do you ensure the accuracy and quality of image annotations?

We employ trained annotators who follow specific guidelines. Regular quality checks, inter-annotator agreement, and feedback mechanisms are in place to ensure accurate and reliable annotations.

Can you annotate images in different formats such as JPEG, PNG, TIFF, and others?

Yes, we can annotate images in various formats, ensuring flexibility and compatibility with different systems and applications.

Do you provide annotation services for videos and other multimedia formats?

Yes, in addition to images, we offer annotation services for videos, 3D point clouds, and other multimedia formats, supporting a wide range of AI and ML projects.

Can you handle large-scale image annotation projects?

Absolutely, our infrastructure and skilled workforce are scalable, allowing us to handle large-scale image annotation projects efficiently and accurately.

How do you handle sensitive or confidential images during the annotation process?

We prioritize data security and confidentiality. Strict protocols, including secure data transfer, restricted access, and confidentiality agreements, are in place to protect sensitive image data.

What annotation tools and technologies do you use?

We use a combination of manual annotation by experts and specialized annotation software tailored to different annotation types, ensuring precision and efficiency.

Is there a minimum or maximum number of images required for annotation projects?

We cater to projects of various sizes, from small datasets to extensive collections. There’s no strict minimum or maximum, and we work closely with clients to meet their specific needs.

Do you offer specialized image annotation services for specific industries such as healthcare or automotive?

Yes, we provide specialized image annotation services tailored to specific industries, ensuring annotations meet industry-specific standards and requirements.

What is the typical turnaround time for image annotation projects?

Turnaround times depend on project complexity and dataset size. We collaborate closely with clients to establish realistic timelines, ensuring timely delivery of annotated images.

Do you offer post-annotation support, such as data validation and quality checks?

Yes, we offer post-annotation support including data validation, quality checks, and re-annotation if necessary, ensuring the annotated images meet the desired quality standards.

What is the cost structure for your image annotation services?

Our pricing is based on factors such as project complexity, annotation type, volume, and required turnaround time. We provide competitive and transparent pricing tailored to specific project needs.

Can you handle annotation tasks involving intricate details or fine objects within images?

Yes, our skilled annotators are experienced in handling intricate details and fine objects within images, ensuring accurate annotations even for complex visual data.

Do you offer consulting services to help clients determine the appropriate annotation methods for their projects?

Yes, we provide consulting services to guide clients in choosing the most suitable annotation methods based on their project requirements and goals, ensuring optimal outcomes for their AI and ML applications.

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