MIL-HDBK-1300A
cf. Decoding process - For the NITFS, a process that takes compressed image data as its inputs and outputs a continuous-tone image.
cg. Defense Information Systems Network (DISN) - The Department of Defense integrated packet switching network capable of worldwide multilevel secure and non-secure data transmission.
ch. Delimiter - A bit pattern or character marking the beginning or end of a unit of data. ci. Dequantization - The inverse procedure to quantization by which the decoder recovers
a representation of the DCT coefficients.
cJ. Differential Pulse Code Modulation (DPCM) - A version of pulse-code modulation in which an analog signal is sampled, and the difference between the actual value of each sample and its predicted value (derived from the previous sample or samples) is quantized and is converted by encoding to a digital signal. Note: There are several variations on differential pulse-code modulation.
ck. (Digital) reconstructed image (data) - A continuous-tone image that is the output of any decoder defined in MIL-STD-188-198A (JPEG).
cl. (Digital) source image (data) - A continuous-tone image used as input to any encoder defined in MIL-STD-188-198A (JPEG).
cm. (Digital) (still) image - A set of two-dimensional arrays of data.
cn. Discrete Cosine Transform (DCT) - Either the forward discrete cosine transform or the inverse discrete cosine transform.
co. Direct Memory Access (DMA) - A common form of memory-mapped video. A kind of device controller that allows the transfer of data to and from the memory at very high speeds.
cp. Duplex - For the purpose of MIL-STD-2045-44500 (TAC02), an operational mode in which frames may be transferred across a link in both directions.
cq. Effectivity - Some of the capabilities specified in this document are not required as of the issue date of the document. All such capabilities are marked with effectivity numbers, e.g., (Effectivity 1). Each effectivity number will be replaced by a specific date in subsequent releases of this document.
cr. Electronic imagery dissemination - The transmission of imagery or imagery products by any electronic means.
cs. Element - For MIL-STD-2301, elements are CGM statements that denote a state to act upon when the CGM is sequentially read. The words "command" and "element" are synonymously used in MIL-STD-2301.
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