Data Hiding for Binary Images Using Weight Mechanism

This paper proposes a simple data hiding technique for binary images. The binary cover image is partitioned into equal-sized, non-overlapping blocks and the watermark will be embedded into blocks by flipping pixels. The weight mechanism is also proposed to find the most suitable flip pixel in the block. In order to improve the visual quality of the stego image, the boundary check is used to prevent the boundary distortion. Experimental results show that our method achieves a good visual quality for the watermarked image and has high capacity for embedding.