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grey image
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  灰度图像
    The dissertation combine the theory, with using integers DCT transform to realize grey image lossless compress with the method of reversible color space integers transform and reversible integers DPCM prediction to realize lossless compress from grey image to color image with Huffman Coding Method via Visual C++ program.
    本文借鉴整数DCT变换实现灰度图像无损压缩的理论研究成果,将其与可逆的颜色空间整数变换和可逆的整数DPCM预测相结合,采用哈夫曼编码方法,用VC编程实现了从灰度图像到彩色图像的无损压缩。
短句来源
  灰度图象
    Study of two demensional otsu thresholding for grey image segmentation
    灰度图象的二维otsu自动阀值分割研究
短句来源
  灰度图象
    Study of two demensional otsu thresholding for grey image segmentation
    灰度图象的二维otsu自动阀值分割研究
短句来源
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  grey image
After optical filtering the modulated carrier is input into a digital image processing system to generate a grey image of 'deformed grating', whose digital differentiation can be used to obtain the curvature patterns or the twist patterns.
      
At the time of that study, the grey image output of a radar unit required the interpretation of a trained specialist.
      
All these algorithms are based on grey image, and color information was not used.
      


Two dimensional otsu thresholding for grey image segmentation was discussed. A new thresholding output function was discussed. A new thresholding output function was given based on the distribution features of 2 D histogram (grey level/local average level). The Theoritical analysis and comparative experimental results show that this new function performs are much better when the image are corrupted by noise.

研究了灰度图象的二维otsu自动阀值分割法.根据灰度图象的象索点灰度,邻域均值二维直方图的分布特点,给出了一个新的分割阀值判决函数.理论分析与实验结果表明:该阀值判决函数比仅使用一个二维矢量阀值具有更强的抗噪声能力,分割性能更好.

Puts forward a coding method of wavelet for color image based on vision character. This method is based on a simple wavelet coding method for grey images, and includes several stages: multi differentiating rate decomposing by wavelet, abandoning of some high frequency sub band data of the color heft, adaptive threshold value quantizing in allusion to the yawp pollution of heft independent points, and the realization of effective coding by the combining of journey coding and Huffman coding based...

Puts forward a coding method of wavelet for color image based on vision character. This method is based on a simple wavelet coding method for grey images, and includes several stages: multi differentiating rate decomposing by wavelet, abandoning of some high frequency sub band data of the color heft, adaptive threshold value quantizing in allusion to the yawp pollution of heft independent points, and the realization of effective coding by the combining of journey coding and Huffman coding based on the code distributing characterstic of wavelet modulus.

提出了一种基于视觉特性的彩色图像小波变换编码方法。该方法是以一种简单的灰度图像小波编码方法为基础 ,首先通过小波变换将图像进行多分辨率分解 ;然后对彩色分量的高频子带数据进行适当的抛弃 ;对小波图像的高频数据采取自适应阈值量化方法克服恢复图像中的分量独立点噪声污染现象 ;最后根据小波系数的码字分布特征 ,采用行程编码结合Huffman编码。该方法可保证重建图像的主观视觉效果良好 ,而且具有较高的压缩倍率

Base on the binary morphological transforms, threshold sets and umbra of grey images, we study the method of building the multi-values morphological t ransform, and exploring the interrelations of binary and grayscale morphology. I n the morphological approach of image processing, we propose edge feature extrac tion, morphological gradient, the representation of morphological skeleton, and the application of the open and close morphological transforms in image processi ng such as image...

Base on the binary morphological transforms, threshold sets and umbra of grey images, we study the method of building the multi-values morphological t ransform, and exploring the interrelations of binary and grayscale morphology. I n the morphological approach of image processing, we propose edge feature extrac tion, morphological gradient, the representation of morphological skeleton, and the application of the open and close morphological transforms in image processi ng such as image peak, valley detection.

从图像的描述方法出发 ,在二值形态变换的基础上 ,通过引入图像的阀集合和本影 ,导出了多值形态学基本形态变换建立的方法 ,并揭示了二值形态学与多值形态学在结构算法上的相互联系 .在图像处理的形态学方法上 ,提出了基于形态变换的图像边缘提取、多种形态梯度、形态骨架表示方法 ,以及具有去噪和形态平滑功能的开、闭形态变换在图像分析中的应用

 
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