在今日社會中，多媒體資訊的流行及普及性促進了資訊偽裝術在數位通訊上的發展。就數位影像的資訊偽裝術而言，所著重的是資料可藏量以及藏入資料後原始影像品質的維護。另一方面，由於每一個像素都僅僅由一個位元組成，在黑白影像上藏入資料相當具有挑戰性。
因此，我們提出了一個簡單並且具有高資料可藏量的黑白影像資訊偽裝術。在我們的方法中，除了非全黑和非全白的區塊之外，還利用到全黑以及全白的區塊做藏入資料之用。根據我們所提出的資料嵌入準則，每一個可藏區塊至多修改兩個像素就能藏入兩個位元的資料量。必要時可藉由簡單的權重衡量法快速的找出最適合被修改的像素。由實驗結果可以得知在資料可藏量和原始影像品質的維持方面，和其他方法相較之下，我們的方法有相當卓越的表現。

The popularity and availability of multimedia data promote digital communication with steganography. High data capacity and cover image quality maintenance after data embedding are the major requirements in digital image steganography. On the other hand, hiding data in binary images is challenging for the property that each pixel is made up by only one bit.
As a result, we present a simple and high capacity binary image steganography. In our method, uniform blocks are utilized to embed data in addition to non-uniform blocks. Two data bits are hidden by at most modifying two pixels in an embeddable image block according to the proposed embedding criteria. The most suitable pixel to be modified is found quickly by simple weighting method when necessary. The experimental results show the excellent performance over other’s mechanism in data capacity and image quality.

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