MODIFYING DATA-BEARING IMAGES

摘要

In an embodiment of a method of automatically modifying a data-bearing image, a number of first modules and a number of second modules of the data-bearing image used to encode first data and extra data, corresponding to the first data, are determined, where portions of the first data and/or portions of the extra data encoded in second modules cannot be modified. When the number of first modules is greater than or equal to the number of second modules, at least some of the number of first modules are modified to encode at least some of the first data and at least some of the extra data. When the number of first modules is less than the number of second modules, at least some of the number of first modules are modified to encode the first data.