Increasing size of data-set and watermarking

某些安全过程要求把数据(120)加到要被保护的内容材料上。然而，这样的数据附加可能在被设计用于只处理内容材料的随后的过程中造成反常的行为。要被加到内容材料(210)上的数据(120)通过使用预处理器(320，330)被预处理，该预处理器使遵从该内容材料的一般特性的信号作为它的输出。这个被预处理的附加数据然后被加到原始内容材料。通过预处理该附加数据，组合的材料(350)被确保与该组合材料的、诸如加水印过程的以后的后处理器(180)相兼容。 Some security processes call for the addition of data to the content material that is to be protected. The addition of such data may, however, cause anomalous behavior in subsequent processes that are designed to process the content material only. The data that is to be added to content material is preprocessed using a preprocessor that has, as its output, a signal that conforms to the general characteristics of the content material. This preprocessed additional data is then added to the original content material. By preprocessing the additional data, the combined material is assured to be compatible with subsequent postprocessors of the combined material, such as a watermarking process.