In this method, the original image 's feature is extracted by using wavelet transform and quantization. The feature information is changed into watermark by the chaotic sequence encryption.
该方法在一定的量化标准下利用小渡变换提取图象的特征信息，通过混沌序列对其加密生成数字水印。
Since the corresponding pair of feature points was difficult to be extracted in feature points registration methods, an image mosaic method based on interest point matching was presented.
针对基于图像特征点的配准方法中对应特征对难以准确提取的问题，提出一种基于兴趣点匹配的图像自动拼接方法。
Usually image recognition based on neural networks needs feature extraction, and then the features extracted are delivered to the neural network classifier.
神经网络用于图像识别一般都要提取图像特征，然后把提取好的图像特征送入神经网络识别器进行识别。
Secondly, moment feature of the image is extracted.
其次，提取图像的矩特征。
Color image feature were extracted from rib eye image by MATLAB software, and the color feature is compared with the sensory scores.
运用MATLAB软件，提取出眼肌图像中的颜色特征值，并与感官评分结果进行比较。
In this paper, the image shape feature extracted by the PCA method can meet the needs of the recognition layer well.
在该文的形状识别系统中，用P CA法提取图像的形状特征，能够较好地满足识别层的输入要求。
The feature parameters of blemish image region were extracted.
提取了苹果表面缺陷图像区域的特征参数。
A number of image features extracted from different image status, different regions and different kinds of feature description operators, which can describe the defects in feature space precisely.
本文从缺陷图像不同形态、不同区域和不同特征描述方法的角度出发提取了263个图像特征，实现了在特征空间对缺陷的精确描述。
The method employing support vector machine to segment mouth from face image was presented, and the characteristic parameters were extracted according to the lip template and moving lip feature.
首先提出了一种支持向量机分割嘴唇区域的方法，并基于口型模板提取描述嘴唇形状的特征参数。
Deducing 3-d spatial image parameters according to 2-d section or the image parameters on projecting plane. the required feature informations are extracted and processed.
根据二维截面或投影面上的图象参数去推断三维的空间图象参数，提取需要的特征信息并自动地进行处理及输出特征参数值。
By calculating the mean and standard deviation of image subbands decomposed by NSCT, the texture feature elements are extracted.
以nsct域各子带系数的均值和标准方差构成基本特征向量。
Temporal change feature is extracted from the visual image sequence using temporal decomposition based on wavelet, which reflects the dynamical content variation at a pixel at any time.
在红外图像序列中，提取了反映局部区域运动相关性的相关特征。
The authentication watermark was generated according to the image feature which was the mean of an image extracted from FRIT.
提取图像在FRIT时产生的均值信息作为图像内容特征，并由它生成认证水印。
The authentication watermark was generated according to the image feature which was the mean of an image extracted from FRIT.
提取图像在FRIT时产生的均值信息作为图像内容特征，并由它生成认证水印。
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