Seeing conditions (or air turbulence) is the single most important factor that degrades image contrast and planetary detail.
观察的条件(大气扰动)是影响对比度和行星细节的最重要的因素。
Histogram Equalization (he) as an image contrast enhancement technique is widely used. By improving the visual effect of images considerably, it assists the viewer in discovering hidden messages.
直方图均衡化(HE)是一种最常用的图像对比度增强技术，它能够在很大程度上增强图像的视觉效果，帮助人们识别图像中隐藏的信息。
By exposing under different light filters, photographs with different image contrast can be obtained.
曝光时使用不同滤色镜即可获得影像反差不同的照片。
Conclusion: the effect is quite good to enhance the eyeground image contrast with the power function curve.
结论用幂函数曲线法来提高眼底图像对比度的效果是比较好的。
Conclusion: in the range of the errors permitted, able to solve the grading problem by image contrast in oil assay.
结论：在误差允许的范围内，能够有效地解决油品分析中的图像对比评级问题。
Compton scattering plays a very important role in X-ray imaging, it is both helpful and harmful to X-ray image contrast.
康普顿散射在X射线成像中起着非常重要的作用，它既有助于图像对比度的形成，也可能损害图像对比度。
The invention discloses a method for detecting the working state of a pan tilt camera by using an image contrast method.
本发明公开了一种图像比对法检测云台摄像机工作状态的方法。
The other wavelengths need to be suppressed to avoid background noise that reduces image contrast and obscures the fluorescent light emissions.
其它波长的光需要被过滤以免产生背景噪声，引起成像质量下降或淹没被激发的荧光信号。
Based on the first and the second order of image statistics characteristics, the adaptive visible image contrast enhancement method is presented.
提出了一种基于图像一阶、二阶统计特性的自适应可见光图像对比度增强方法。
This paper presents an enhanced IBFV visualization algorithm based on particle advection, it can obviously increase the rendering image contrast.
提出一种基于质点平流的增强型IBFV可视化算法，可显著增加IBFV算法生成图像的对比度。
Accordingly, it is possible to reduce outdoor daylight reflection and improve image contrast by an improved design over the use of black stripes.
因此，借助一种优于使用黑色条带的改进的设计，能够降低户外日光的反射并提高图像的对比度。
In order to improve the image contrast and to single out the desirable signals in a coherent image enhancement system, a polarizing filter was used.
为了在相干象增强系统中提高象的对比度，突出所需用的信号，采用了偏振滤波器。
A new contrast enhancement technique is presented, which can not only extend the dynamic scope of the image gray scale, but also increase the local image contrast.
此方法既扩大了图象灰度的动态范围，又使得图象中的局部对比度得到了增强。
The use of GP model for detecting features has significant advantages over gradient-based feature detection methods which are sensitive to variations in image contrast.
通过理论分析和大量实验，验证了新模型可以可靠地进行低层特征检测，能够服务于不同的视觉信息处理应用。
The blue color background was selected by the system, the image contrast and the localization accuracy were strengthened, and the image processing difficulty was reduced.
系统选用蓝色背景，增强了图像的对比度和定位准确性，减小了图像处理的难度。
Bone age automatic assessment can be divided into four periods: preprocessing of X-ray hand-wrist image, image contrast enhancement, feature extraction and feature matching.
骨龄自动识别大致分为四个阶段：手腕骨图像的预处理、图像增强、图像特征提取和图像特征匹配。
Considering the image contrast as a measurement of the degree of the image focus, a novel autofocus algorithm for Synthetic Aperture Radar (SAR) imagery is presented in this paper.
以对比度作为衡量图像聚焦程度的标准，研究了一种新颖的SAR图像自聚焦算法。
But besides noises, there are some other interference factors which weaken the vision effect of digital image greatly, like image contrast, image brightness and image sharpness, etc.
但是通常影响数字图像的视觉效果，除了噪声以外，还存在其它的因素，如图像对比度、图像亮度、图像清晰度等等。
The computation simulation results show that in confocal optic system this mask can change the point amplitude response. It can improve the resolution, while increase the image contrast.
模拟计算结果表明，在共焦系统中利用该掩模可以改变系统的点振幅响应，从而提高分辨率，并增强图像的反衬度。
The computation simulation results show that in confocal optic system this mask can change the point amplitude response. It can improve the resolution, while increase the image contrast.
模拟计算结果表明，在共焦系统中利用该掩模可以改变系统的点振幅响应，从而提高分辨率，并增强图像的反衬度。
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