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• Data endianness: how bytes are combined together to build multi-byte blocks of information;
• Data explicitness: whether a DICOM element explicitly states its type, or if this information shall be implicitly inferred from the element identifier;
• Pixel data encoding: how the pixel data block should be interpreted, i.e. by using a specific compression algorithm like JPEG 2000, or as an uncompressed data block.

The app supports many transfer syntaxes, and gives you the following transfer syntaxes: choices to enable and prioritize them:

• Explicit Little Endian: Explicit VR Little Endian; Implicit VR Little Endian; JPEG 2000 Image Compression (Lossless Only); JPEG 2000 Image Compression; JPEG-LS Lossless Image Compression; JPEG-LS Lossy (Near- Lossless) Image Compression; JPEG Lossless, Nonhierarchical (Processes 14); JPEG Baseline (Process 1); JPEG Baseline (Processes 2 & 4); RLE Lossless; MPEG2 Main Profile Main Level; JPEG Baseline (Process 1);
• JPEG 2000 Lossless & Lossy: JPEG 2000 Image Compression; JPEG 2000 Image Compression (Lossless Only); JPEG-LS Lossy (Near- Lossless) Image Compression; JPEG-LS Lossless Image Compression; Explicit VR Little Endian; Implicit VR Little Endian; JPEG Lossless, Nonhierarchical (Processes 14); JPEG Baseline (Processes 2 & 4); JPEG Baseline (Process 1); RLE Lossless; MPEG2 Main Profile Main Level; Explicit VR Big Endian;
• JPEG LS Lossless & Lossy: JPEG-LS Lossy (Near- Lossless) Image Compression; JPEG-LS Lossless Image Compression; JPEG 2000 Image Compression; JPEG 2000 Image Compression (Lossless Only); Explicit VR Little Endian; Implicit VR Little Endian; JPEG Lossless, Nonhierarchical (Processes 14); JPEG Baseline (Processes 2 & 4); JPEG Baseline (Process 1); Explicit VR Big Endian;
• JPEG Lossless: JPEG Lossless, Nonhierarchical (Processes 14); JPEG Baseline (Processes 2 & 4); JPEG Baseline (Process 1); JPEG 2000 Image Compression (Lossless Only); JPEG 2000 Image Compression; JPEG-LS Lossless Image Compression; JPEG-LS Lossy (Near- Lossless) Image Compression; Explicit VR Little Endian; Implicit VR Little Endian; RLE Lossless; MPEG2 Main Profile Main Level; Explicit VR Big Endian;
• JPEG Baseline: JPEG Baseline (Process 1); JPEG Baseline (Processes 2 & 4); JPEG Lossless, Nonhierarchical (Processes 14); JPEG 2000 Image Compression (Lossless Only); JPEG 2000 Image Compression; JPEG-LS Lossless Image Compression; JPEG-LS Lossy (Near- Lossless) Image Compression; Explicit VR Little Endian; Implicit VR Little Endian; RLE Lossless; MPEG2 Main Profile Main Level; Explicit VR Big Endian;
• JPEG Extended: JPEG Baseline (Processes 2 & 4); JPEG Lossless, Nonhierarchical (Processes 14); JPEG Baseline (Process 1); JPEG 2000 Image Compression (Lossless Only); JPEG 2000 Image Compression; JPEG-LS Lossless Image Compression; JPEG-LS Lossy (Near- Lossless) Image Compression; Explicit VR Little Endian; Implicit VR Little Endian; RLE Lossless; MPEG2 Main Profile Main Level; Explicit VR Big Endian;
• RLE: RLE Lossless; Explicit VR Little Endian; Implicit VR Little Endian; JPEG 2000 Image Compression; JPEG Lossless, Nonhierarchical (Processes 14); JPEG Baseline (Processes 2 & 4); JPEG Baseline (Process 1); MPEG2 Main Profile Main Level; Explicit VR Big Endian;
• Implicit Little Endian Only: Implicit VR Little Endian;
• JPEG 2000 Lossless Only: JPEG 2000 Image Compression (Lossless Only); Explicit VR Little Endian; Implicit VR Little Endian; JPEG-LS Lossless Image Compression; Explicit VR Big Endian;
• JPEG LS Lossless Only: JPEG-LS Lossless Image Compression; Explicit VR Little Endian; Implicit VR Little Endian; JPEG 2000 Image Compression (Lossless Only); Explicit VR Big Endian;

Services

This section describes how DICOM services are implemented and usable in OnePacs Workstation for macOS. Generally speaking, SCP services run in background and rely on the configured DICOM port availability. If the specified port is already being used by another process, the app will complain with an alert message.

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