In this paper a robust, spatial domain watermarking
scheme using simple error control coding technique is
proposed. The idea of this scheme is to embed an encoded
watermark using (5,1) repetition code inside the cover image
pixels by LSB (Least Significant Bit) embedding technique.
The proposed algorithm is simple, more robust against Salt
and Pepper Noise than LSB only watermarking techniques.
In this paper comparison is made between embedding different
watermark encoding schemes such as (7, 4) Hamming code,
(3, 1) repetition code, (5,1) repetition code and without
encoding for different noise density of salt and pepper noise.
Result shows watermark encoding scheme using (5,1)
repetition code provides better robustness towards random
error compared to other said scheme, without much
degradation in cover image.