对比度

We aim for 80% contrast as a general rule of thumb.

我们认为的最佳的对比度是80%，这可以作为一般的经验值。

In this work, we demonstrate that SPIONs can be loaded into RBCs in a concentration sufficient to obtain strong contrast enhancement in MRI.

我们通过本研究发现，SPIONs能在足够的浓度条件下被红细胞包裹，并在MRI中获得了强的造影对比度。

This method is independent from flow data, having fast rendering rate and high contrast output image. The parameters have obvious physical meaning, and different vision effect visualization output results are derived from different parameters combination. This method can take full advantage of the graphic card accelerator, and has successful application in the dynamic visualization of the flow data in crystal growth experiment during task research work.

该方法具有独立于流场数据、绘制速度快、生成图像对比度高的特点，参数物理意义明显，不同参数选择可得到不同视觉效果的可视化输出结果，能够充分利用现有硬件图形显示加速设备，已经被成功应用于空间晶体生长实验流场数据的可视化，获得了较好的效果。

The so-called "adiabatic expansion" means that the light generated by the acoustic signal in the absorption within the region transit time under the same conditions are far greater than the time required for thermal diffusion, negligible effect of the proliferation of light signal the impact of this Conditions, acoustic imaging to short-pulse laser for excitation, ultrasonic signal for the information to the carrier, with high-resolution and high-contrast imaging features.

所谓的"绝热膨胀"是指所产生的光声信号在吸收区域内的渡越时间远远大于相同条件下热扩散所需的时间，可忽略热扩散效应对光声信号产生的影响，在此条件下，光声成像以短脉冲激光为激励源、以超声信号为信息的载体，具备高分辨率和高对比度的成像特点。

A detection method of the inima and adventitia edges of sequential IVUS simulated images is proposed by means of their statistical features.

它基于活动轮廓模型、IVUS图像的对比度特征和瑞利统计分布特性，通过采用动态规划和启发式图搜索的方法，对图像边缘进行了最优化的提取。

The butterflies need to be discolored: Image ?Abjustments ?Desaturate (shift+ctrl+u). Increase their brightness and contrast, using Edit ?Abjustments ?Brightness/Contrast.

我们需要将蝴蝶的颜色去掉（点击图像-调整-饱和度ctrl+shift+u），然后增强图片的对比度同时将图片调亮（图像-调整-亮度/对比度）。

In this paper, we introduced the method and set of cat perceptual learning and research the character of orientation discrimination and contrast detection of cat, and we also research the effect of visual perceptual learning on the response of the Dorsal Lateral Geniculate Nucleus neuron with the method of single-neuron in vivo recording techniques, by which to the ends of knowing the mechanism of neuron in the perceptual learning. Perceptual learning in orientation discrimination and contrast detection was first observed by psychophysics method in cat in the following two experiments.

本研究介绍猫的视觉学习实验装置和训练方法，观察了方位辨别和对比度检测两种知觉学习的特点，并结合在体细胞外单细胞记录技术研究了视知觉学习对外膝体神经元反应特性的影响，初步探讨猫视知觉学习的神经机制。1、运用心理物理学方法进行了两个知觉学习实验，分别观察了猫对正弦光栅方位辨别和对比度检测的知觉学习。

Patients with methyl cobalamin recovered better in contrast sensitivity than with vitamin B12. But there was no significant difference.

治疗前2组间的对比度值差异无显著性（P〉0.05），治疗后Ⅰ组的对比度值改善较Ⅱ组更为显著，差异无显著性（P〉0.05）。

Filters include cropping, scaling, vertical flipping, horizontal mirroring, expanding to create letterboxes, rotating, brightness/contrast, changing the aspect ratio of the video's pixels, colorspace conversion, hue/saturation, color-specific gamma correction, filters for reducing the visibiltiy of compression artifacts caused by MPEG compression, automatic brightness/contrast enhancement, sharpness/blur, denoising filters, and several different ways of deinterlacing.

滤镜包括剪裁，缩放，垂直翻转；均衡器，拓展到创建字元框，旋转，亮度/对比度，改变视频横纵比；颜色空间转换，色调/饱和度，色彩特定伽马校正器；有的滤镜是为减少MPEG压缩处理造成的清晰度下降（去块， deringing ），自动亮度/对比度增强，锐利/模糊，去噪滤波器，和几个不同的扫描方式。

Filters include cropping, scaling, vertical flipping, horizontal mirroring, expanding to create letterboxes, rotating, brightness/contrast, changing the aspect ratio of the video's pixels, colorspace conversion, hue/saturation, color-specific gamma correction, filters for reducing the visibiltiy of compression artifacts caused by MPEG compression, automatic brightness/contrast enhancement, sharpness/blur, denoising filters, and several different ways of deinterlacing.

滤镜包括剪裁，缩放，垂直翻转；均衡器，拓展到创建字符框，旋转，亮度/对比度，改变视频横纵比；颜色空间转换，色调/饱和度，色彩特定伽马校正器；有的滤镜是为减少MPEG压缩处理造成的清晰度下降（去块， deringing ），自动亮度/对比度增强，锐利/模糊，去噪滤波器，和几个不同的扫描方式。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐