Annotation
Get your images labeled for smarter computer vision
Last updated
Get your images labeled for smarter computer vision
Last updated
Once the project has been created, the annotator can access their dashboard and begin annotating the images. The dashboard provides easy navigation to start the annotation process and manage the data efficiently. Annotations are saved continuously in the background, so annotators doesn’t lose their work.
Start Annotating In this section, we've created a Road Image Project as a demo. Let’s continue with this project to learn how to annotate data.
To begin the annotation process, simply click the "Annotate" button located in the top-right corner of JTheta Annotate.
When you click the "Annotate" button, you will be directed to the annotation tool in JTheta Annotate. Here’s a sample image showing how to use the annotation tool in JTheta Annotate. Watch to learn how to annotate your data efficiently.
Search for a class in the list of classes within the class window.
The image editor will display the session and Labeling time.
The annotator dashboard will show annotation status of the images. To Label, In-progress, In-review, rework & done
If on inactivity by the annotator/reviewer, the session will timeout.
Users can use zoom sidebar and reset image size (using reset icon) in the image editor
JTheta supports several annotation methods, including Bounding box , manual polygon, auto snapping Polygon, semantic segmentation, and instance segmentation, allowing you to annotate images with precision and flexibility.
JTheta supports panning, zooming in, and zooming out on the image canvas while annotating, providing ease of use. Copy & paste the existing annotation using CTRL-C * CTRL-V
Once you have annotated an image, you can submit it to the reviewer. If you wish to skip an image, simply click the "Skip" button and provide any comments to inform the reviewer.
During annotation, annotator can skip an image with a comment and the Admin can see the annotator’s comment in the project dashboard
Important Points to be remember
Rotate the label in the canvas
Modify and adjust the size of labels on the canvas
Annotate without a review. Annotator annotations are final
Delete the label in the image using Keyboard delete button or delete icon in the objects window
Hide and delete individual annotation using the class/objects window
Pressing ESC button on the canvas will go back from cross arrow to pan handle
Hovering over classes/objects in class/objects window will highlight them on the canvas.
Zoom-in and zoom out using fingers (pinch)
When the cursor is moved/hovered over the annotation, the cursor will change to mouse pointer symbol (angled arrow) and a left click will select the annotation to be editable
Also , Please find the below sample video for how to annotate an image
Keyboard Shortcuts - Keyboard shortcuts help minimize the user's time while annotating.
