Accusoft Pegasus
Accusoft Pegasus

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imaging SDKs that accelerate development
PICTools Medical

advanced medical imaging technology


Enhance still and video medical imaging applications
High-performance C libraries
Fastest compression and decompression engines
Lossy and lossless DICOM-compliant format support

Windows | Linux | Solaris | IBM AIX


Compression & File Formats

Click to view the PICTools Medical Compression/Speed Comparison Chart

  • JPEG 2000
  • File Format and Codestream – Part 1
  • Continuous tone compression (1-bit to 24-bit)
  • Provides lossy and lossless compression
  • 3D Volumetric Encoding – Part 2
  • Compress and decompress in accordance with the DICOM standard
  • Supports both lossy and lossless modes, JPEG 2000 raw codestream, and JPX format
  • Supports 24-bit RGB, 8 to 16-bit grayscale
  • Multithreading
  • User-configurable number of threads to optimize performance on multicore CPUs
  • JPIP – Part 9
  • Design and build a JPEG 2000 JPIP implementation
  • Speed up network viewing of user selectable resolutions and areas of interest
  • Provides JPIP APIs for client and server, JPEG 2000 compliant compression and decompression, and JPIP request and receive
  • The PICTools JPIP libraries were used to create many of the image streams in the ISO Part 4 interoperability reference test suite
  • Transcoder
  • Allows many operations without decompressing and recompressing images, eliminating generational loss
  • Change the number of layers, file size, compression rate, overall quality, convert lossless to lossy, re-encode for JPIP transmission, and extract encoded thumbnails
  • Lossless JPEG
  • Addresses the medical industry need for compression that is non-destructive
  • Provides fast compression for video performance and is ideal for cardiology and ultrasound applications
  • Supports 24-bit RGB, 8 to 16-bit grayscale data
  • Lossy JPEG
  • Complete control over luminance, chrominance, and sub-sampling compression parameters
  • High-speed 1/4, 1/16, 1/64 thumbnail decompression support
  • Enhanced decompression minimizes JPEG block artifacts
  • CMYK, YUV, RGB, 8-bit and 12-bit grayscale support
  • JPEG-LS
  • Provides excellent lossless or constrained-loss compression performance
  • Decompression support for non-standard, improperly compressed JLS images
  • Supports single component 2 to 16-bit grayscale images
  • Supports multiple component 24-bit (RGB) images
  • JPEG XR
  • Provides support for fully standards based JPEG XR
  • Supports multiple subsampling settings, including familiar medical settings of 4:2:2 and 4:2:0 with cosited and centered options
  • A still image compression algorithm for continuous tone photographic images
  • Features lossy and lossless compression, multiple colorspaces, a wide dynamic range, and extensive metadata support
  • Performance optimized
Image Processing & Editing

  • Overlap filter options
  • Post processing filter strength settings
  • Embedded orientation flags
  • Metadata support
  • Tiling
  • Subband control
  • Buffer to buffer image processing for maximum flexibility
  • The high-performance API (Application Programmers Interface) offers total control of image processing functions

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PICTools Medical Compression File Size and Speed Comparison Chart
Source Image Parameters Lossy JPEG Lossy J2K* Lossy JPEG XR JPEG Lossless J2K Lossless JPEG-LS Lossless Lossless JPEG XR
512 x 512
8-bit gray
256 KB		 Compress Time (ms) 1 11 7 3 18 15 11
Size (KB) 20 20 20 119 97 91 104
Compression Ratio 13.1:1 13.2:1 13.2:1 2.2:1 2.7:1 2.9:1 2.5:1
Decompress Time (ms) 1 5 5 1 14 14 8
PSNR 44.4 45.8 45.3 N/A N/A N/A N/A
2048 x 2048
8-bit gray
4,974 KB		 Compress Time (ms) 27 138 101 46 253 238 176
Size (KB) 263 263 260 1,809 1,425 1,365 1,550
Compression Ratio 16:1 15.9:1 16.2:1 2.3:1 2.9:1 3.1:1 2.7:1
Decompress Time (ms) 11 52 66 30 196 226 120
PSNR 45.3 46.2 46.2 N/A N/A N/A N/A
512 x 512
12-bit gray
512 KB		 Compress Time (ms) 13 30 N/A 5 34 20 N/A
Size (KB) 106 106 N/A 244 214 214 N/A
Compression Ratio 4.9:1 4.9:1 N/A 2.1:1 2.5:1 2.5:1 N/A
Decompress Time (ms) 2 16 N/A 3 27 18 N/A
PSNR 57.7 63.3 N/A N/A N/A N/A N/A
2048 x 2048
12-bit gray
9,948 KB		 Compress Time (ms) 35 469 N/A 70 535 304 N/A
Size (KB) 1,707 1,707 N/A 3,778 3,424 3,354 N/A
Compression Ratio 4.9:1 4.9:1 N/A 2.2:1 2.4:1 2.5:1 N/A
Decompress Time (ms) 35 241 N/A 34 405 279 N/A
PSNR 57.4 62.4 N/A N/A N/A N/A N/A
2048 x 2048
16-bit gray
9,948 KB		 Compress Time (ms) N/A 577 198 92 821 365 206
Size (KB) N/A 2,274 2,274 5,788 5,535 5,385 5,517
Compression Ratio N/A 3.7:1 3.7:1 1.4:1 1.5:1 1.6:1 1.5:1
Decompress Time (ms) N/A 294 139 62 591 310 143
PSNR N/A 68.9 68.7 N/A N/A N/A N/A

*For ease of comparison, the lossy J2K images were compressed to Lossy JPEG compression ratio. All times measured using 32-bit Intel.