What is Image Annotation ?


Years back, human efforts were used to carry out a lot of activities. They were needed in various sectors that use the human working capacity to carry out their businesses. Today, the world is experiencing a widespread technology revolution whereby information technology (IT) is fast dictating the pace and the scheme of events. With the use of computers, brilliant ideas have been transformed into excellent innovations like artificial intelligence and machine learning. These two innovations have made life, and business processes become easier. Machine learning and artificial intelligence rely on the use of a computing algorithm to replicate intelligent human behavior. These behaviours include automatic speech recognition, augmented reality, and neural machine translations. That said, the success of these technological innovations in various sectors led to intensive research on the use of computers to visualize and interpret images. With different software, computer vision makes an effort to activate the machine eyes to see and interpret images.

Technology has proved that computer vision can give the human race and scientists autonomous vehicles, unmanned drones, and facial recognition. However, this extraordinary development can be enjoyed with the introduction of image annotation in the technology world. Image annotation is an important task when it comes to computer vision.   As useful as this technology may be to the human race, there are lots of hidden information that are needed to be unraveled to understand its function fully and uses in the world. Therefore, today, I will be telling you all you need need to know about image annotation.

                         What is Image Annotation ?

Image annotation is an innovative computing technology where a human-powered task is used to manually identify and define regions in an image and also create a text-based description for the areas specified in the image. Image annotation catalyzes the pattern recognition process of the computer vision system when it is presented with a new image or data. The rate at which patterns or labels on images are being recognized differs. Images or data with similar labels are recognized easier and quicker than those with different labels. Image annotation technology is mostly used by artificial intelligence (AI) engineers to give information about an image for developing a computer vision model.


Different Techniques of Image Annotation


  1. 2D Bounding Box

The 2D bounding box technique is one of the significant techniques used in annotating images. In this method, annotators create a box around the object of interest at a particular frame and location. Also, you create place anchor points at the edges of each object. Many a time, the object may look the same. In this instance, you can draw boxes of all the objects in the image. Also, when there are different objects in the location, you must draw boxes around each object. For instance, if you have cars, bicycles, and pedestrians, you should draw boxes around each of them. After drawing the box, the annotator will choose labels that are a perfect fit to object in the box.

  1. 3D Bounding Box

The 3D bounding box, also known as cuboid, is a technique that is similar to the 2D bounding box. In this technique, the annotator creates a box around each image. They also place a point anchor point on the edges of each object. The boxes are created to cover a specific location and frame. However, the difference here is that the boxes can show the depth of the object been annotated.

  1. Polygon Annotation

Polygon annotation is an excellent image annotation technique annotator can use for objects that have irregular shapes and sizes. This method is useful because 2D and 3D bounding boxes can only annotate images with regular shapes. In this technique, polygons are created around the image of interest. This makes it easier to predict accurately the image’s volume and position within the polygonal space.

  1. Polylines

Polyline annotation is a fantastic annotation technique that is mainly used when you desire to make your computer vision system aware if annotating boundaries, splines, and lines. Annotators can also use the polyline technique to plan trajectories in drones. In this technique, straight or curved lines are created on images. Then the annotator would be left the option of annotating sidewalks, lanes, powerlines, and some other boundary indicators.

  1. Keypoint

Keypoint tracking is an image annotation technique that annotators can use to determine the outermost part of an object. They also use it to determine the size and position of essential parts of the object. For instance, if you are annotating a car, it vital parts like side mirrors, headlights, and wheels are determined.

  1. Semantic Segmentation

If you wish to annotate image by dividing it into different segments or regions, you can choose semantic segmentation. For example, you can annotate the image of your car pack. A typical car pack comprises of trees, grasses, and sidewalk. Each of these components is separated into different segments. Then they are annotated separately. While using a semantic segmentation technique to carry out image annotation, you may need to adjust the threshold of the semantic segmentation algorithm. This will help it annotate any kind of image you desire.


Steps in Image Annotation

  1. Analyze Project Limitations

The first step to annotate a given image is to analyze the restriction on the project. Therefore, analyzing the project give annotators an idea about the project and its constraints.

  1. Use Appropriate tools

Many tools have been made available for annotators to use. However, you need to choose the right tool for the kind of image you want to annotate. The analysis you have previously done will assist you in choosing the best tool for a specific image.

  1. Use Appropriate Technique

After you have selected the right tool, you need to employ the correct technique to annotate a particular image. This involves studying the project instruction. Images produced with the proper technique can be used as training data.

Best Company that Provide Image Annotation Service


LabelOps is one of the best companies that provide excellent and fantastic imaging annotating services worldwide. It has the lowest hourly rates and best accurate annotations for the best training dataset. The company has a team of experts and professionals that specializes in machine learning, artificial intelligence, and image annotation. It also has state-of-the-art facilities that are used to carry out annotating services. LabelOps is an image annotating company that is certified and provides fantastic customer support services when you consult them for image annotating services.

The company has a track record of outstanding and excellent services on its previous and ongoing contracts. Their professional services are rendered to IT customers and other stakeholders at affordable prices.


Image annotation is vital to artificial intelligence engineers. Today, I have discussed crucial points you need to know about Image annotation. Please read through it and get informed about the image and text-based description technology.

How cheap image annotation can be ?

The most challenging part for developing an computer vision model is preparing a high quality training data set . Is it possible to process a high quality training data set with your optimal budget ?

How cheap image annotation can be ? 

Image annotation is an emerging technology in the IT world that has received considerable attention in the last few years. Since its innovation and discovery, most image annotation companies have been offering their services at per hour charges. These services are charged at higher prices, thereby leaving out term people to understand, which is the word “cheap.” That said, there is a belief among IT customers that quality services can only be accessed at a high price. LabelOps is an image annotation company that has proved many IT customers wrong on the assertion that cheap services correspond to low-quality services. Since its inception, the company has attracted more customers based on its high-quality image annotation services at $3.5 per hour charges , where as the price in the global market varies from $7-10 per hour . This is a prove that image annotation customers can get high-quality services at lower prices. Today, I will be discussing all that LabelOps has put in place and yet offer high-quality hourly services.

  1. Its Investment and Equipment

One of the reasons why an image annotation company can be referred to as been “standard” is the massive investment in terms of facilities and equipment. There is a general belief that an image annotation company that has invested heavily in setting up its state-of-the-art facilities is expected to offer its services to clients at higher prices. This is because they will be expected to cashback the money spent in no time. Despite its massive investment in its state-of-the-art facilities, LabelOps has placed quality services above its hourly charges. This means that you will always get high-quality services at a lower hourly price. At LabelOps, we prioritize promptness and make the dedication to service our watchword. The company has developed new techniques to ensure that you get the best image annotation services at lower prices of $3.5 per hour.

  1. Location and Economy

The location of clients can sometimes increase the cost of services charged per hour by the image annotation companies. At LabelOps, we prioritize quality services and rank them higher above your location. We understand the importance of our fantastic and high-quality service to you. Hence, we ensure your location is not a barrier to giving you the best service you deserve. At LabelOps, we have developed new tactics and strategies to ensure that we remain within your reach and offer the best image annotation services to you at $3.5 per hour. LabelOps does not require your presence to get your work done. All the company needs is effective communication through cheaper communication channels.

  1. Economy

Affordability in terms of service charges is always a challenge to some image annotation clients in the developing nations. They desire to access quality annotation services at lower prices. However, most annotation companies are not sensitive to the economic realities of these clients from developing countries. At LabelOps, we place clients’ financial considerations and interests above our service charges. We understand that they desire quality services by cannot afford the prices charged by other annotation companies. Hence, we prioritize quality and superior services above other factors. When clients consult LabelOps for their image annotation services, the company has fantastic annotation tools that can cater to their annotation needs at a cheaper cost of $3.5 per hour.

  1. Workforce

Many a time, IT companies engage the services of outstanding experts and professional thereby providing their quality services at higher prices. Image annotation companies also have teams of excellent professionals and experts that are trained and certified to carry out fantastic services at high hourly rates. At LabelOps, we have a team of qualified, certified, and well-trained experts and professionals that offer excellent and quality image annotation services to clients at lower hourly prices. Our brilliant professionals are the best you can find when it comes to image annotation services in the IT industry. These professional engineers are experts in the use of various state-of-the-art annotator tools to render quality services that worth far more than the price charge per hour by the company. Their years of working experience in the image annotation services account for their abilities to know the right image annotation technique to use when you consult them for the delivery of superior and excellent image annotation services.

  1. Quality Services

Quality is a common word that is mostly used in the IT and other sectors of industrial set up. Most image annotation companies prioritize quality services at their optimum price charged per hour. They often lower their prices by restricting the client’s access to some annotation services. At LabelOps, our lower price charged at $3.5 per hour does not translate to the restriction of certain services. All our annotation services are embedded in the $3.5 per hour charged. Hence, when you consult us for your annotation services, you can be sure that you will get high-quality annotation services with the attention and services of our professionals and IT experts.

  1. Support Services

A lot of certified IT companies offer excellent support services to their clients at a higher price. This is because they pay adequate and exceptional attention to make sure the services rendered are devoid of error. However, LabelOps is an image annotator company that focuses on providing support services at lower prices. At LabelOps, we offer fantastic support services to all our clients, irrespective of their location. The company has well trained, experienced, and certified experts that provide excellent support services to clients at lower hourly prices. Our support section ensures all your complaints, inquiry, and clarifications are given prompt attention and adequately considered. Our excellent support services are rendered to clients at a lower cost of $3.5 per hour.



Cheaper cost of services does not correspond to low image annotation services at LabelOps. We place your desire above the revenue and other benefits. We prioritize superior and high-quality image annotation services that are second to none above gains. This attribute of LabelOps is unique among the various annotation companies. Consulting us for your image annotation services is the best action you need to take today. Test our high quality and superior services today, and you will not regret doing so.