增强后的图像灰度分布更均匀,对比度得到明显提高。
The enhanced images have more equal grey distribution. So the contrast is rapidly progressed.
根据干涉场的条纹灰度分布规律,对条纹图象进行处理。
The fringe image is processed according to fringe gray distribution rule in interference field.
给出了一种基于图象灰度分布统计特征期望值为阈值的二值化方法。
This paper presents an algorithm for threshold employing gray level arithmetic mean based on relevant conception in probability theory.
根据分形理论,对绉织物表面图像的灰度分布和起绉纹理进行了分析。
Based on the fractal theory, the gray level distribution and texture of crepe fabric surface images are analysed.
一维最小误差阈值法假设了目标和背景的灰度分布服从混合正态分布。
One-dimensional minimum error thresholding method assumed that the histogram distributions of object and background are governed by a mixture Gaussian distribution.
在对图像进行处理之前,了解图像整体或局部的灰度分布情况非常必要。
In the image before treatment, understand the whole or local image of gray distribution is very necessary.
在图像灰度分布互相关和快速傅立叶变换的基础上,研究了粒子图像测速的实现。
On the basis of image cross correlation of brightness distribution and Fast Fourier Translation, the implementation of Particle image Velocimetry was studied.
红外目标的描述利用目标区域的灰度分布,该灰度分布通过核概率密度估计建立。
Infrared objects are represented by the intensity distribution, which is defined by the kernel-based density estimation.
传统的图像增强处理是针对图像灰度分布的不同情况,来定义相应的灰度变换函数。
Traditional image enhancement is to define corresponding gray transform function according to gray distribution of the image.
然后,结合图像帧间的差分信息以及灰度分布的先验概率等因素将图像从空间域映射至统计域。
Then, every frame is mapped from spatial domain to statistical domain incorporating the factors such as the difference image from the consecutive frames and the prior distribution of a pixel density.
在低反射率区域中,利用目标的形状、拓扑关系和目标与背景的灰度分布完成桥梁兴趣区检测。
By analyzing targets' space distribution, shape and gray characteristic in low-reflection area, the Regions Of Interested (ROI) are detected.
在遥感相机的实际应用中,卫星下传的图像的灰度分布往往不佳,针对该问题展开了相关研究。
In the application of remote sensing cameras, the grayscale distributions of the transferred images are normally bad. In order to solve this problem, some researches are carried out.
在结构元尺寸的确定方面,提出了线灰度分布曲线拟合并相减,再搜索相减结果最大值的方法。
The method of curve fitting and searching the maximum value of subtraction results was put forward to determine the size of structural elements.
结合图像的灰度分布和空间布局,提出了一种基于灰度和空间信息的序列蒙特卡罗概率跟踪算法。
Incorporating intensity distribution and spatial layout, this paper proposes a sequential Monte Carlo probabilistic tracking algorithm using intensity and spatial information.
直方图均衡可以使图像灰度分布接近均匀,提高图像对比度,但图像的信息量会有一定程度的损失。
The histogram equalization can enhance the contrast by redistributing the gray levels, it has the drawback that it reduces the information in the processed image.
从微光图像的成像过程、灰度分布和像素空间与时间相关性等几个方面对微光图像特征作较系统的分析。
The characteristics of low light level (LLL) image were analyzed in aspects of imaging process gray level distribution and correlativity of picture element in space and time of LLL image.
实验证明,当需要对一幅图像的大量图像窗口进行灰度分布标准化时,这种算法对提高计算速度十分有效。
It was proved to be very good for improving the computing speed when a large number of image Windows have to be processed with grayscale distribution normalization.
直方图作为对图像颜色或灰度分布的一种基本描述量,文中利用其统计特征进行直方图之间的相似性度量。
Histogram, as a basic description of the image or the gray distribution, using of statistical characteristics of it, are compared in similarity.
这种算法本质上是从灰度分布来分割物体的算法的推广,它不仅适用于背景纹理灰度与物体表面灰度不同的图象,而且适用于背景平均灰度与物体表面平均灰度相同的图象。
In essence, the algorithm is the extension of those algorithms which segment object in a textured background by assuming the average gray levels of the object and the background are different.
其实验结果与哈夫曼编码做了比较,经过分析,此编码方法在灰度级概率均匀分布时具有优势。
Experimental results were compared with Huffman code, and through analyzing, this code method has advantage when probability of gray scale is distributed equally.
若把二值图或灰度图看作是二维密度分布函数,就可把矩技术应用于图像分析中。
The use of moments for image analysis is straightforward if we consider a binary or gray level image segment as a two-dimensional density distribution function.
在稻米垩白的检测问题上,根据籽粒区域的灰度统计和分布信息,以及垩白区域在籽粒区域中的分布特征,提出了四种垩白米检测算法。
In terms of the gray statistics and distribution information of kernel region and chalky region distribution characteristic in the kernel region, four algorithms of chalky rice are presented.
针对实验数据像素灰度的分布特点,提出了一种对目标轮廓线进行有效和可靠的搜索和跟踪策略。
Aiming at the distribution characteristic of pixel gray level in tested data, this paper proposes a valid and reliable searching and tracking policy for the object contour.
典型地,一个灰度图像的面积直方图就是图像中连接元素的面积统计分布。
Typically, an area histogram of intensity image is based on the statistics of connected components.
它具有随机分布的规律,并且明显高于其周围像素点的灰度值。
It has a law of random distribution, and significantly higher than that of its surrounding pixel gray value.
遥感图像通过像元灰度值的高低差异和空间变化来表示不同属性的地物目标及其分布情况。
Remote sensing images indicate the physical objects with different attributes and their distribution through pixel gray value differences and the level of spatial variation.
由于光线分布不均匀或斑块噪音干扰等原因,往往使所要处理的指纹的灰度值分布缺乏均匀性。
The extracted objects with different ranges usually have different distribution of gray scale value, due to uneven distribution of light and various properties of the crack background of fingerprints.
用计算机模拟了制作菲涅耳透镜时灰度掩模的曝光量分布和菲涅耳透镜的面形结构。
We simulated the light exposure distribution of the mask and structure of the Fresnel lens in computer.
用计算机模拟了制作菲涅耳透镜时灰度掩模的曝光量分布和菲涅耳透镜的面形结构。
We simulated the light exposure distribution of the mask and structure of the Fresnel lens in computer.
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