Abstract:
This paper displays a new idea for determining some regions of an image for embedding .feature extraction will determine blocks of an image by using Quad Chain Code (QCC) to collect the values of pixels that are similar with each other in a block of size 8x8, and perform number of operations on this block as following: apply Discrete Cosine Transform (DCT), calculate the features ( number of zeros in DCT coefficients), use the block that contains large number of zeros for embedding based on features values. In the next step, shrink the original image after removing the values of previous block and repeat the above operation until no data exists with more similarity.