Abstract- In this paper, we investigate the problem of choosing the
best domain for embedding watermarks in digital still images.
During this paper, eight watermarking techniques were implemented
and evaluated. Four techniques were selected to represent different
approaches of embedding data in spatial domain, three approaches
using discrete cosine transform (DCT) domain, and one approach
using discrete wavelet transform domain (DWT) domain. The
algorithms were chosen to represent a range of computational
complexities and implementation structures. The performance of the
selected algorithms was evaluated with respect to many
perceptibility parameters.