Research images/AV material
Archival Master File | Optical capture resolution | Bit depth | Embedded color/gray profile | Notes | Production Master File Format | Derivative File Format (AV only) | |
*Text-based | *Image specs optimized for OCR | ||||||
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) | |
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 | ||
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 | ||
Printed matter on microform | Uncompressed TIFF v.6 | *3500 PPI | 8 | Gray Gamma 2.2 | *Accounts for magnification ratio | ||
Special collections on paper | |||||||
Bound material | Uncompressed TIFF v.6 | 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) | ||
Unbound material | Uncompressed TIFF v.6 | Minimum 7200 px on long axis | 24 | Adobe RGB (1998) | |||
Posters | Uncompressed TIFF v.6 | 300 PPI, minimum 7200 px on long axis | 24 | Adobe RGB (1998) | |||
Scrolls | Uncompressed TIFF v.6 | Minimum 7200 px on short axis | 24 | Adobe RGB (1998) | |||
*Photographs | Uncompressed TIFF v.6 | Minimum 7200 px on long axis | 24 | Adobe RGB (1998) | *Includes prints, photogravure, lithographs, Daguerreotypes | ||
Special collections on microform | Uncompressed TIFF v.6 | *3500 PPI | 8 | Gray Gamma 2.2 | *Accounts for magnification ratio | ||
Special collections on still film | For moving image film, see Audio and Moving Images section below. | ||||||
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) | ||
Film positives up to 4"x5" | Uncompressed TIFF v.6 | 3000 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 | |||
Glass negatives up to 4"x5" | Uncompressed TIFF v.6 | 3000 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 | |||
Film negatives larger than 4"x5" | Uncompressed TIFF v.6 | 2000 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 | |||
Film positives larger than 4"x5" | Uncompressed TIFF v.6 | 2000 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 | |||
Glass negatives larger than 4"x5" | Uncompressed TIFF v.6 | 2000 PPI | 8/24 | Adobe RGB (1998)/Gray Gamma 2.2 | |||
Maps | |||||||
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) | ||
Historic maps | Uncompressed TIFF v.6 | 400-600 PPI, minimum 7200 px on long axis | 24 | Adobe RGB (1998) | |||
Atlases | Uncompressed TIFF v.6 | 400-600 PPI, minimum 7200 px on long axis | 24 | Adobe RGB (1998) | |||
Audio and Moving Images | |||||||
Audio (analog source) | Broadcast Wave (BWF) wrapper; linear PCM uncompressed 24-bit bit-depth; 96kHz sampling rate | 24 | Broadcast Wave (BWF) wrapper; linear PCM uncompressed 16-bit bit-depth; 44.1 kHz sampling rate | 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 | 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 | 50 Mbps MPEG-2 in a 4:2:2 format | MPEG-4 H.264 video | |||
Video (digital source) | preserve original codec in Matroska (MKV) wrapper, with original embedded metadata maintained | bit depth of source | n/a | MPEG-4 H.264 video | |||
Film | DPX Wrapper 10-bit LOG; RGB 4:4:4; with uncompressed linear PCM audio encoding (24-bit bit-depth; 96kHz sampling rate) | 24 | In cases where DPX is not warranted, follow standards for analog video. | QuickTime ProRes 422 HQ | MPEG-4 H.264 video |