Sedeen Viewer

Pathcore Sedeen™ is a universal virtual slide viewer designed for pathologists, researchers, and life sciences professionals who need a powerful, flexible platform for viewing, annotating, and analysing whole slide images on their PC. Used and loved by institutions worldwide, Sedeen provides a comprehensive set of tools for managing digital pathology workflows efficiently and with precision.

Sedeen is available as a free personal, non-commercial desktop application, making it accessible to individual researchers and pathologists looking to explore whole slide image analysis without enterprise overhead. For collaborative teams requiring web-based access and case management, Pathcore also offers PathcoreFlow™ as a complementary solution.

Supported Image Formats

• Compatible with a wide variety of proprietary whole slide image formats
• Supports Aperio SVS and Leica SCN formats
• Works with other TIFF-based formats and JPEG-2000 images
• A comprehensive list of all supported formats is available from Pathcore

Annotation and Markup Tools

• Includes a rich set of drawing tools: polygon, ruler, arrow, rectangle, oval, freehand, and more
• Annotations can be exported in XML format for use in third-party programs and downstream analysis workflows

Multi-Modality Overlays and Image Registration

• Powerful image stacking, alignment, and transparency controls for visualising protein expression and localisation
• Enables comparison of multiple serial sections to track tissue changes at various depths
• Supports overlay and comparison of histology images with other imaging modalities including MRI, CT, and ultrasound

Cropping and Resizing

• Crop virtual slides into smaller, more manageable pieces suitable for publications, emails, and analysis
• Supports both individual image cropping and batch mode processing for efficiency

Color Correction and Pseudo-Color

• Apply pseudo-color to grayscale images, particularly useful for simultaneous viewing of fluorescent images
• Adjust brightness, contrast, and gamma correction factors for RGB images

Extensible Image Analysis

• Comes with built-in image analysis tools ready to use out of the box
• Supports custom algorithm development via the Pathcore SDK, allowing developers to build bespoke analysis tools tailored to specific research needs

Sedeen is offered for personal, non-commercial use as a desktop application for PC. Pathcore actively seeks user feedback to guide ongoing development and improvement of the platform. For teams requiring collaborative, web-based digital pathology capabilities, Pathcore's broader product suite — including PathcoreFlow™ — extends Sedeen's core functionality with online case organisation and assignment features. Pathcore Inc. is ISO/IEC 27001:2022 certified.