Based on research results of LeastSignificantBit (LSB) steganography in BMP images, this paper describes a run length detecting algorithm and gives the principle and realization of algorithm.
Data were embedded into the LeastSignificantBit-plane (LSB) of high frequency CDF (2, 2) integer wavelet coefficients, which accorded with the principle of Human Visual System (HVS).
A new method that digital watermarking information was embedded in numerical attributes LeastSignificantBit (LSB) was put forward in view of the existing watermark algorithms insufficiency.