Customizable Annotation Features Include:
LEADTOOLS includes more than 30 built-in annotation objects that can be extended to create custom annotation objects.
Developers can change the way the user interacts with existing annotations as well as create completely new annotation objects
such as Triangle, Shutter, Text Bubble, Bull's-eye, and Permanent Magnifying Glass—the possibilities are endless with LEADTOOLS Annotations!
User Interface (Toolbars, Context Menus, and Dialogs)
LEADTOOLS provides an extensive collection of objects, toolbars, menus, and dialogs
within its .NET (C# & VB, Core, Xamarin, UWP), C/C++, iOS, macOS, Linux, Java, and web annotations,
which can be customized to best suit your application and targeted end-users.
All user interface elements can be directly accessed to change strings, images, and event handlers.
Additionally, dialog and menu strings can be localized using standard .NET Globalization and Localization
to provide country/region specific versions of your application with minimal code.
XML Annotation Save Format
LEADTOOLS annotations can be stored in multiple formats, but the XML (Extensible Markup Language) format is the most popular.
There are many advantages of using the XML format, including:
- XML is forward and backward compatible
- XML is human readable
- XML is easily modified using a standard text editor
- XML is easily parsed using any standard XML parser
- XML is used with any of the growing number of applications and utilities that work with XML
Annotation Rotate Option
With the rotate options interface, two rotate handles are displayed on a selected object.
One of the handles is the "gripper" handle, which rotates the object when dragged.
The other handle is the "center" handle, which determines the axis of rotation.
The center and gripper handles can be moved by clicking and dragging.
The following figure illustrates a rotate by dragging the gripper handle:
The following figure illustrates moving the center handle:
Calibrate Ruler Feature
With this feature, a user can automatically calibrate a ruler to the desired size.
This is useful to allow a user to interactively measure something in an image.
Any of the measurement type annotation objects can be calibrated using the Ruler Calibrate Automation Dialog.
This feature displays different cursors for many tasks in automated annotation mode. This feature displays unique annotation cursors in the following situations:
- When hovering over a rotation gripper handle
- When hovering over a rotation center handle
- When hovering over any of the eight size handles and an appropriate arrow cursor is displayed depending on the handle and the rotation of the annotation object
- When dragging a selection
- When using any of the 30 annotation tools
All annotation cursors may be changed to your own custom cursor.
The following figure displays some of the default cursors:
Alpha Background Fill Option
LEADTOOLS annotation objects support an alpha option to specify an alpha value from 0 (completely transparent background) to 255 (completely opaque background).
The following figure displays rectangle annotation objects with different alpha values:
Dot Dash Lines
Most of the LEAD annotation objects have Line Width and Line Style options.
These options can be used to draw the annotations with varying line thicknesses and change the line style to solid, dashed, or dotted.
The following example illustrates this:
Text Annotation Options
Text annotation object options include:
- Text visibility
- Text color
- Text Alignment
- Font style and size
- Border visibility
- Border color
Technology Related to Image Annotation & Markup Customizable Features
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Supported Development Platforms for Image Annotation & Markup Customizable Features
- C Windows API - C/C++, Java
- Web Services - JSON, WebAPI, SOAP, RESTful
- iOS -
Objective-C, Swift, Xamarin, Java
- Linux - Java, C/C++, .NET Core
- Android -
Documentation Links for Image Annotation & Markup Customizable Features
Demo Applications that Include Image Annotation & Markup Customizable Features
- Load a pre-loaded image
- Draw annotations
- Export image
Screenshots of Image Annotation & Markup Customizable Features
LEADTOOLS SDK Products that Include Image Annotation & Markup Customizable Features
Develop powerful document imaging applications with LEADTOOLS Document Imaging. Features include PDF viewing and editing, comprehensive image annotating, specialized bitonal image displaying, and image processing. Other features include performance and memory optimizations for bitonal images, document image cleanup, including inverted text, border, hole-punch, and line removal, and scanning with LEADTOOLS Fast TWAIN and WIA.
The LEADTOOLS Recognition Imaging SDK is a handpicked collection of LEADTOOLS SDK features designed to build end-to-end document imaging applications within enterprise-level document automation solutions that require OCR, MICR, OMR, barcode, forms recognition and processing, PDF, print capture, archival, annotation, and image viewing functionality. This powerful set of tools utilizes LEAD's award-winning image processing technology to intelligently identify document features that can be used to recognize and extract data from any type of scanned or faxed form image.
The LEADTOOLS Document Imaging Suite SDK is a comprehensive collection of LEADTOOLS SDK features designed to build end-to-end document imaging solutions that require OCR, MICR, OMR, ICR, barcode, forms recognition and processing, PDF, HTML5 Zero-footprint viewing, conversion, print, capture, archival, annotation, and image viewing functionality. This powerful set of tools utilizes LEAD's award-winning image processing technology to intelligently identify document features that can be used to recognize and extract data from any type of scanned or faxed form image.
Develop powerful Medical Imaging applications with the LEADTOOLS Medical Imaging SDK. Features include comprehensive DICOM data set support, 8-16 bit extended grayscale image support, image annotation, specialized extended grayscale image display such as window level and LUT processing, and medical-specific image processing. Other features include lossless JPEG compression, and signed and unsigned image data processing.
Develop robust DICOM PACS applications with LEADTOOLS PACS Imaging. Features include Medical Web Viewer Framework, high and low-level PACS SCP and SCU functions and controls, secure PACS communication, comprehensive DICOM data set support, image annotation, extended grayscale image display such as window level and LUT processing, and specialized medical image processing. Other features include lossless JPEG compression, JPIP, MRTI, and signed and unsigned image data processing.
Develop powerful PACS and Medical imaging applications with LEADTOOLS Medical Imaging Suite. Features include LEAD's Zero-footprint HTML5 DICOM Viewer, Medical Web Viewer Framework, Medical 3D, DICOM Multimedia codecs, high and low-level PACS SCP and SCU functions and controls, secure PACS communication, Print to PACS, comprehensive DICOM data set support, image annotation, extended grayscale image display such as window level and LUT processing, DICOM Hanging Protocol, and specialized medical image processing. Other features include lossless JPEG compression, JPIP, and signed and unsigned image data processing.