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1·Therefore, enhancing the image contrast is very essential.

因此，提高图像对比度是很必要的。

2·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。

3·Common infrared image gray transform algorithms are studies in order to enhance infrared image contrast.

红外图像对比度增强的研究基于灰度变换。

4·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。

5·By calculating the area and perimeter of the image, and the image contrast, we can identify the meaning of image.

通过计算图像的面积和周长，可以与所存图像对比，从而识别出图像所代表的含义。

6·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。

7·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。

8·Moreover, the obtained fluorescence image contrast was preatly enhanced using pseudo-colour image processing technique.

文中还分析了对所采集荧光图像进行衬比度增强处理的方法。

9·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。

10·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。