Summary of Digitization Specifications
| Archival Master File | Optical capture resolution | Bit depth | Embedded color/gray profile | Notes | Production Master File Format | Derivative File Format (AV only) |
*Text-based |
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Printed computer documents | Uncompressed TIFF v.6 | 300-400 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 | Size of text should be considered when determining resolution | JPEG 2000 (see recipes https://github.com/pulibrary/figgy/blob/master/config/config.yml#L12) Tiled multi-resolution TIFF (Pyramidal TIFF) |
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Typed documents | Uncompressed TIFF v.6 | 300-400 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 | Size of text should be considered when determining resolution |
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Printed publication matter | Uncompressed TIFF v.6 | 300-400 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 | Size of text should be considered when determining resolution |
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Printed matter on microform | Uncompressed TIFF v.6 | *3500 PPI | 8 | Gray Gamma 2.2 | *Accounts for magnification ratio |
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Special collections on paper |
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Bound material | Uncompressed TIFF v.6 | 500 PPI minimum | 24 | Adobe RGB (1998) |
| JPEG 2000 (see recipes https://github.com/pulibrary/figgy/blob/master/config/config.yml#L12) Tiled multi-resolution TIFF (Pyramidal TIFF) |
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Unbound material | Uncompressed TIFF v.6 | 500 PPI minimum | 24 | Adobe RGB (1998) |
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Posters | Uncompressed TIFF v.6 | 300 PPI, minimum 7200 px on long axis | 24 | Adobe RGB (1998) |
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Scrolls | Uncompressed TIFF v.6 | Minimum 7200 px on short axis | 24 | Adobe RGB (1998) |
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*Photographs | Uncompressed TIFF v.6 | Minimum 7200 px on long axis | 24 | Adobe RGB (1998) | *Includes prints, photogravure, lithographs, Daguerreotypes |
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Special collections on microform | Uncompressed TIFF v.6 | *3500 PPI | 8 | Gray Gamma 2.2 | *Accounts for magnification ratio |
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Special collections on still film |
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| For moving image film, see Audio and Moving Images section below. |
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Film negatives up to 4"x5" | Uncompressed TIFF v.6 | 3000 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 |
| JPEG 2000 (see recipes https://github.com/pulibrary/figgy/blob/master/config/config.yml#L12) Tiled multi-resolution TIFF (Pyramidal TIFF) |
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Film positives up to 4"x5" | Uncompressed TIFF v.6 | 3000 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 |
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Glass negatives up to 4"x5" | Uncompressed TIFF v.6 | 3000 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 |
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Film negatives larger than 4"x5" | Uncompressed TIFF v.6 | 2000 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 |
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Film positives larger than 4"x5" | Uncompressed TIFF v.6 | 2000 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 |
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Glass negatives larger than 4"x5" | Uncompressed TIFF v.6 | 2000 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 |
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Maps |
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Maps | Uncompressed TIFF v.6 | 400 PPI, minimum 7200 px on long axis | 24 | Adobe RGB (1998) |
| JPEG 2000 (see recipes https://github.com/pulibrary/figgy/blob/master/config/config.yml#L12) Tiled multi-resolution TIFF (Pyramidal TIFF) |
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Historic maps | Uncompressed TIFF v.6 | 400-600 PPI, minimum 7200 px on long axis | 24 | Adobe RGB (1998) |
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Atlases | Uncompressed TIFF v.6 | 400-600 PPI, minimum 7200 px on long axis | 24 | Adobe RGB (1998) |
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Audio and Moving Images |
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Audio (analog source) | Broadcast Wave (BWF) wrapper; |
| 24 |
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| Broadcast Wave (BWF) wrapper; | MPEG Audio Layer 3 (MP3); 256Kbps bit rate; 44.1 kHz sampling rate |
Audio (digital source) | Broadcast Wave (BWF) wrapper; native uncompressed data at original sample rate (typically 44.1 or 48 kHz) and bit-depth (typically 16-bit) with original embedded metadata maintained |
| 16 |
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| n/a | MPEG Audio Layer 3 (MP3); 256Kbps bit rate; 44.1 kHz sampling rate |
Video (analog source) | FFV1 version 3 in Matroska (MKV) wrapper (4:2:2 YUV, 10-bit bit depth) with linear PCM uncompressed audio encoding (24-bit bit-depth; 48kHz sampling rate) |
| 24 |
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| QuickTime ProRes 422 HQ | MPEG-4 H.264 video |
Video (digital source) | preserve original codec in Matroska (MKV) wrapper, with original embedded metadata maintained |
| bit depth of source |
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| n/a | MPEG-4 H.264 video |
Film | 2k RAWcooked DPX (FFV1 version 3 in Matroska (MKV) wrapper) |
| 24 |
| In cases where DPX is not warranted, follow standards for analog video. | QuickTime ProRes 422 HQ | MPEG-4 H.264 video |