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Research on remote sensing monitoring methods of crop planting area is always the hot topic, and theories and methods about single-crop rice emerge one after another. However, in terms of the practice, there are no fixed methods or schemes yet. This paper puts some methods of planting area extracting into practice, and compares their merits and faults in precision and efficiency. The result shows...
Having been one of an important application on remote sensing monitoring of rice, information extraction and estimation of large rice planting area timely is likely to be more difficult, only depending on the former on-the-spot investigation. According to the rice spectral reflectance characteristics in transplanting, the study analyzes the relationship of normalized difference vegetation index and...
This paper proposes a new fragile watermarking algorithm which is mainly applied to binary document image based on the wet paper code. In order to improve embedding capacity and locating tampered area, some work is done base on the prior research of fragile in this paper. First, we dynamically adjust the bits which are embedded into image according to the number of turnover pixels and make the turnover...
Some work is done to improve embedding capacity and locate tampered regions base on the prior research of fragile document watermark in this paper. And an effective fragile document watermarking algorithm is proposed. The wet paper code which adjusts the number of embedding watermark bits dynamically and takes full advantage of turnover pixels is used for embed watermark to improve embedding capacity...
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