Users Manual for NCS (National Communications System) Facsimile Test Document Tapes. Addendum.
DELTA INFORMATION SYSTEMS INC JENKINTOWN PA
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Under a Contract, Delta Information Systems scanned four test documents at five resolutions and stored the resultant data on magnetic tape. Two sets of tape were generated - a one bit set and an 8 bit set. In the 1 bit set, each picture element is binary. In the 8 bit set, each picture element can have 256 possible gray shades. This report is an addendum to the previously delivered users manual. The purpose of this project is to print out the forty images on tape to verify their visual characteristics. In the case of the one bitpel image the objective is to insure that all extraneous pels have indeed been removed. In the cases of the eight bitpel image the purpose is to determine the general nature of the extraneous pels. All images were printed on a Versatec V-80 plotter capable of printing only black or white pels and having a resolution of 200 pelsinch. In the case of the 8 bitpel images only the most significant bit of the 8 bits was printed.
- Recording and Playback Devices
- Non-Radio Communications