| Description: The onboard_compression_type attribute identifies the type of on-board compression used for data storage and transmission. Valid Values: 'GZIP', 'ICER', 'H.264 Frame', 'LOCO', 'LZO', 'JPEG', 'JPEG Progressive', 'MSSS Lossless', 'Lossless', 'None', 'StarPixel Lossless', and 'StarPixel Flexible'. |
| Namespace Id: img | Steward: img | Class Name: Onboard_Compression | Type: ASCII_Short_String_Collapsed |
| Minimum Value: None | Maximum Value: None | Minimum Characters: 1 | Maximum Characters: 255 |
| Unit of Measure Type: None | Default Unit Id: None | Attribute Concept: None | Conceptual Domain: SHORT_STRING |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | Value | Value Meaning |
| | GZIP | GNU Gzip lossless compression using Lempel-Ziv coding (LZ77) |
| | H.264 Frame | Frame extracted from a video encoded using the H.264 codec |
| | ICER | ICER Adaptive Variable-Length Coding (ICER) |
| | ICT | Integer Cosine Transform |
| | JPEG | Joint Photographic Experts Group, an industry standard lossy compression algorithm. |
| | JPEG Progressive | interlaced progressive JPEG format, in which data is compressed in multiple passes of progressively higher detail. |
| | LOCO | Low-Complexity Lossless Compression |
| | LZO | Lempel-Ziv-Oberhumer, a type of lossless data compression focused on decompression speed. |
| | Lossless | Lossless compression method was used. |
| | MSSS Lossless | Lossless compression algorithm developed by Malin Space Science Systems. |
| | None | No on-board compression was used. |
| | StarPixel Flexible | StarPixel Flexible is a lossy hardware enabled compression, for example used for both Hayabusa2 ONC and TIR instruments. for more: https://www.mdpi.com/1424-8220/15/10/24926/htm |
| | StarPixel Lossless | StarPixel Lossless is a lossless hardware enabled compression, for example used for both Hayabusa2 ONC and TIR instruments. for more: https://www.mdpi.com/1424-8220/15/10/24926/htm |