openslide

OpenSlide is a C library that provides a simple way to read whole-slide images, also known as virtual slides. OpenSlide 4.0.0, the first new OpenSlide release in 8 years, is a major release that adds support for DICOM WSI slides, ICC color profiles, tile cache customization, adds the slidetool command-line utility, removes deprecated APIs, and improves format compatibil...

• New formats: Philips TIFF, Ventana TIFF
• Support OpenJPEG 2.1.0
• Improve performance of JPEG and JP2K decoding
• Add openslide.region[i].* properties
• Improve MATLAB compatibility
• Enable function deprecation warnings with MSVC
• Many portability fixes
• aperio: Detect OpenJPEG chroma subsampling breakage during open
• aperio: Fill in missing tiles with downsampled data
• aperio: Report MP...

• Major internal restructuring
• New formats: Hamamatsu NDPI, Sakura SVSLIDE, Ventana BIF (preliminary)
• Add openslide_detect_vendor()
• Deprecate openslide_can_open() (not very useful and often misused)
• Document performance considerations for openslide_open()
• Add properties giving the bounds of the non-empty region of the slide
• leica: Support multiple main images if their levels are...

• Fix inclusion of openslide.h with MSVC
• Properly handle Aperio JP2K slides with zero-length tiles
• Support Hamamatsu slides with blank MacroImage key

• Fix seams in MIRAX 2.2 slides (thanks, Agelos Pappas)
• Fix associated image naming in single-level Aperio slides
• Stop decoding MIRAX tiles outside requested region
• Stop decoding unneeded tiles during tile-aligned accesses
• Increase Hamamatsu VMU tile size to reduce rendering overhead
• Document performance considerations for openslide_can_open()