Privexa WSI
Privacy controls for digital pathology.
Protect identity-bearing slide information while preserving the pathology workflow.
Developed capability — under validation. Whole-slide privacy is built and undergoing extended testing and qualification. Format coverage and throughput are confirmed per evaluation.
Whole-slide image
Gigapixel pyramidal slide, as acquired.
Associated privacy surfaces
LabelMacroThumbnailMetadataPrivexa review
Automatic privacy controls · reviewer-added regions
Protected WSI
A new protected derivative, designed to preserve the diagnostic image workflow.
Approval / controlled release
Release is bound to the exact protected version.
The challenge
A slide is more than tissue.
A digital slide is a gigapixel pyramidal image accompanied by associated images and metadata. Identity rarely lives in the tissue — it lives in the surfaces around it.
Generic OCR and entity detection run across tissue morphology produced large numbers of false detections in our testing and risked damaging diagnostic utility. Privexa therefore targets the known identity-bearing surfaces, with human review for anything else.
Anatomy of a digital slide
The surfaces Privexa protects.
Slide label
Printed or handwritten labels often carry names, accession numbers and barcodes.
Macro / overview image
The overview capture of the whole glass slide frequently includes the label area.
Original thumbnail
Embedded thumbnails can reproduce label content at low resolution.
Identifying & vendor metadata
File properties may hold patient, case, operator or device identifiers.
Reviewer-added regions
A reviewer can mark further regions for protection — for example, handwriting on the glass.
From slide to controlled release
Protect, review, approve.
- 01
Protected slide generation
Privexa produces a new protected derivative. The original is not silently altered, and reprocessing creates new authority.
- 02
Human review
An interactive slide reviewer shows what will be protected and allows reviewer-added regions.
- 03
Approval
Approval binds to the exact protected slide version. A changed derivative needs fresh approval.
- 04
Integration
Protected slides can feed AI, analytics, research sharing or partner platforms via the Privexa API.
- 05
Private deployment
Slides can be processed inside customer-controlled infrastructure where required.
Technical notes
Engineered for gigapixel images.
- Tiled, pyramidal image handling for very large slides
- Slide access built on OpenSlide-compatible reading
- Durable large-image processing with protected derivatives
- Interactive slide review in the browser
Supported vendor formats are confirmed during evaluation. Privexa is not a medical device and does not perform diagnosis.
Evaluate Privexa on your slides.
We'll scope an evaluation around your scanner formats, label practices and deployment requirements.