Noise floor consistency analysis

In some cases, such as if alone a individual angel is available, added complicated assay techniques may be required. In general, steganography attempts to accomplish baloney to the carrier duplicate from the carrier's babble floor. In practice, however, this is generally break simplified to chief to accomplish the modifications to the carrier resemble white babble as carefully as possible, rather than analyzing, modeling, and again consistently battling the absolute babble characteristics of the carrier. In particular, abounding simple steganographic systems artlessly adapt the least-significant bit (LSB) of a sample; this causes the adapted samples to accept not alone altered babble profiles than blunt samples, but aswell for their LSBs to accept altered babble profiles than could be accepted from assay of their higher-order bits, which will still appearance some bulk of noise. Such LSB-only modification can be detected with

appropriate

algorithms, in some cases audition encoding densities as low as 1% with reasonable reliability.1