| Nowadays, As the constant development of the multimedia technology and the computer network one popularize day by day, The application of the digital media has obtained surprising development, the exchange of the multimedia information has reached the unprecedented degree of depth and scope too. People can issue one's own multimedia works through Internet network (such as: Audio frequency, the video, the cartoon, Picture etc.) to transmit the important information, carry on e-business. But the following side effect is very obvious, For example anyone can be through the easy original works which gets others of network, Especially the picture of digitalization, music, film etc., The person who usurps not only can get the electronic data through the illegal means but also can also have been carried on wanton duplicating to the original works by the author's agreement, It revises production finish reprocessing. The copyright of the infringement author with serious malfeasance, has brought the enormous economic losses to owner of the copyright, Have caused great impact to the information safely, Implement effective copyright protection become one a piece of waiting to be solved realistic problems urgentlies already to digital products under the environment of network while pursuing. Digital watermarks that technology produce in recent years to acknowledge generally, At its enormous commercial value, so it just productions, receive international scientific and technological circle and the great attentions of business circles, And has nowadays become one in information science and computer science novel and unique and has wide research focus question of using the prospect quickly.The technological range of application of digital watermark is extremely extensive, so far as its carrier, digital watermark technology includes the digital watermark of the picture , The file digital watermark of the audio frequency, several kinds wait in the digital watermark of the video , the digital watermark of the picture is regarded as the copyright effective means to protect digitalized picture works among them, It is a relatively important and commonly used method in the digital watermark technology. The digital watermark method of the picture is to regard picture as carriers, imbed the watermark information in the original picture through a certain pattern process method , In trying one's best and influence picture vision the prerequisites of quality, realize, The eye rose that has already become main direction and focal point that the masses of scientific research personnel have studied.The present digital watermark is often studied and deal with the hiding of the picture a direction, Common methods are all the watermark information imbedding certain quantity in the original picture, There are a lot of methods to imbed the watermark information in the vision, according to position imbedded, Can divide into space domain-method and frequency domain-method .Now, the method of imbedding the watermark into the frequency domain has already been considered to be the relatively safe and reliable method .There are some, such as DCT, DFT etc. ,Wavelet transforming has localization quality nature both in time domain and frequency domain therefore it should be superior to the other frequency domain method .So, imbedding the watermark in the wavelet area has became the main trends of technical development already.At present, the frequency domain that most documents refer to is all imbedding the watermark information in the part of low frequency of the original picture , Then draw out the watermark information to measure . All face the loss of the art of work picture and contradiction of the watermark definition without exception in this type of method. there are following deficiencies: 1) Watermark that imbed relatively little amount of information generally speaking. 2) As to original picture, the unavoidable certain loss.Because of the above reason, this paper has been put forward a non-lose watermark method. The conc...
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