A difference histogram-based reversible data hiding algorithm was proposed for authentication and covert communications of vector maps.
提出一种基于差值直方图的可逆数据隐藏算法，用于矢量地图的认证和隐秘通信。
Conventional algorithms are mainly based on histogram including cumulative difference histogram (CDIF) and sequential difference histogram (SDIF).
现有的重频分选算法有累积差值直方图法(CDIF)和序列差值直方图法(SDIF)。
To decrease embedding distortion from difference expansion, a difference histogram-based selection scheme was introduced, which gave priority to the differences with small magnitude.
为减少由扩展嵌入所引起的图形失真，借助差值直方图来选取可嵌入差值，优先选择绝对值小的差值。
To better understanding the weld image, the histogram equalization method was used aiming at enlarging the difference between groove and other area.
运用直方图均衡化方法强化坡口与非坡口的差别，增加焊缝图像的理解性。
Based on the Discrete Cosine Transform (DCT) coefficient histogram difference sequences of JPEG images, a new steganalytic method was proposed to realize the steganalysis of JPEG MB2.
基于JPEG图像的离散余弦变换（DCT）系数直方图差值序列，提出一种新的检测JPEGMB2隐写术的方法。
First of all, a macroblock-based histogram of difference is introduced, and bits are allocated rationally among coding units according to image complexities.
本文给出了一种基于宏块的差图像直方图法，并根据图像复杂度在编码单元之间合理分配比较率。
To compare two images, you take the absolute value of the difference between each histogram bucket, and then sum these values.
为了比较两个图像，则采取每个直方图桶之间的差的绝对值，并再总结这些值。
The difference of H histogram and S histogram of the images can be used to classify new and used bills.
利用色度H和饱和度S直方图分布差异来反映新旧差别。
Various shot detection methods in decompressed domain are studied. We realize shot detection based on two methods, such as color histogram difference and pixel-based domain.
研究了解压域镜头探测技术，实现了利用直方图差值探测镜头和基于像素域探测镜头两种方法。
The algorithm uses a difference image histogram of four directions to measure the influence of spatial correlation, and temporal correlation is measured by the histogram of frame difference.
该算法利用视频序列中各帧的四方向差分直方图度量隐写对空间相关性的影响，同时利用相邻帧帧间差分的直方图度量隐写对时间相关性的影响。
By using image difference and gray stretch technique, image histogram analysis method was used to investigate the movement of particles in image sequence.
利用差分法配合灰度拉伸对颗粒运动图像进行了处理 ，直方图分析表明 ，像素在灰度上的分布特性与颗粒运动的剧烈程度具有相关性。
The conventional segmentation methods are based on histogram difference and pixel difference between the successive frame pairs.
对视频序列进行分割，传统的方法是通过比较连续的视频帧之间像素间的灰度直方图差异来实现的。
The pixel-matching two-difference algorithm and two histogram comparison are used for shot detection, a method of extraction shot key frame based on distance of adjacent frame is presented.
首先使用改进了的像素匹配二次差分法结合双阈值法进行镜头突变和渐变的检测，然后对镜头内的帧间距离进行判断来提取关键帧；
It is shown to outperform the conventional technique that USES a histogram-based measure of frame difference. This approach performs very well in b...
该方法比起传统的使用帧间柱状图差分的方法，在实时性和直观性上都做得非常好。
It is shown to outperform the conventional technique that USES a histogram-based measure of frame difference. This approach performs very well in b...
该方法比起传统的使用帧间柱状图差分的方法，在实时性和直观性上都做得非常好。
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