Photograph of Dunbar fisher lass, c1900

RLS / SCRAN Digitisation Standards, July 2001

Still Images

Standards are based on Kodak Photo CD Base x 16 format, which generates a 3072 x 2048 pixel image from a 35mm format film.

If a Kodak Photo CD Bureau is not used for digitising images, images must be supplied at a size of at least 2048 x 3072 pixels, based on the 35mm film aspect ratio. To give the required pixel area a scan for example, of a long, thin bookmark may require a file of around 1023 x 6144 pixels.

The resulting file should be approximately 18MB scanned from a colour original and around 6MB from a black and white original, (both scanned as 24 bit colour).

Images should be saved as uncompressed, sRGB TIFFs on a PC formatted CD.

Moving images

Moving images should be digitised and submitted to SCRAN in the following format:

Quicktime Movie Format 320 pixels x 240 pixels at 25 frames per second.

Three dimensional information

Most SCRAN projects will only be concerned with 2 dimensional images (even if they represent a 3 dimensional scene). Projects which intend to include 3 dimensional information as part of their deliverables should discuss the delivery format with their SCRAN Project Officer before the commencement of the project. Quicktime VR is currently SCRAN's accepted standard format.

Sound

The current standard accepted by SCRAN is in WAV or AU format 44.1KHz, 16 bit stereo, supplied as a digital file on a data CD or DAT tape.

Multimedia Essays / Websites

Not only must the website be deliverable across the Internet but any component multimedia essay must also be deliverable across the Internet. These must be authored in suitable multi platform applications, which allow the resulting authored program to run on both PC and Macintosh platforms. All component files and resources must be supplied.

If plug-ins are required for web deliverable materials these should be publicly available at no cost to the end user. Please consult SCRAN if you intend to include such resources.

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