Weasis DICOM medical viewer

A free/libre DICOM viewer

Weasis is a multipurpose standalone and web-based DICOM viewer with a highly modular architecture. It is a very popular clinical viewer used in healthcare by hospitals, health networks, multicenter research trials, and patients.

Weasis DICOM viewer is cross-platform, free/libre and open source software (FLOSS), multi-language and allows a flexible integration to PACS, RIS, HIS or PHR. This multi-platform DICOM viewer runs with several processor architectures on Windows, Linux, and macOS (see the packages available for download). It allows high-quality renderings with high performance through the OpenCV library.

Since version 4, it has a responsive user interface linked to the operating system options and works well on high-resolution screens.

It has been designed to meet several expectations of clinical information systems and their future evolution regarding medical imaging: providing web-based access to radiological images, as well as covering a considerable number of DICOM types and offering multimedia capabilities.

Here are the main features:

Display all kinds of DICOM files (including multi-frame, enhanced, MPEG-2, MPEG-4, MIME Encapsulation, SR, PR, KOS, AU, RT and ECG)
Viewer for common image formats (TIFF, BMP, GIF, JPEG, PNG, RAS, HDR, and PNM)
Image manipulation (pan, zoom, windowing, presets, rotation, flip, scroll, crosshair, filtering…)
Layouts for comparing series or studies
Advanced series synchronization options
Display Presentation States (GSPS) and Key Object Selection
Create key images (Key Object Selection object) by selection
Support of Modality LUTs, VOI LUTs, and Presentation LUTs (even non-linear)
Support of several screens with different calibration, support of HiDPI (High Dots Per Inch) monitors, full-screen mode
Multiplanar reconstructions and Maximum Intensity Projection
Display Structured Reports
Display and search into all DICOM attributes
Display cross-lines
Measurement and annotation tools
Region statistics of pixels (Min, Max, Mean, StDev, Skewness, Kurtosis, Entropy)
Histogram of modality values
SUV measurement
DICOM Send (storeSCU and STOW-RS)
DICOM Query/Retrieve (C-GET, C-MOVE and WADO-URI) and DICOMWeb (QUERY and RETRIEVE)
Save measurements and annotations in DICOM PR or XML file
Import CD/DVD and local DICOM files
Export DICOM with several options (DICOMDIR, ZIP, ISO image file with Weasis, generate new UIDs, transcoding, TIFF, JPEG, PNG…)
Magnifier glass with advanced display options
Native and DICOM printing
Read DICOM image containing float or double data (Parametric Map)
DICOM ECG Viewer
Dicomizer module to convert standard images into DICOM