为了滤除噪声，增强有用信息，经输入设备输入的字符图像一般需做预处理。
The character image from the input device must be preprocessed to filter noises and enhance useful information.
如今，随着数码相机、数码摄像机等数码设备的普及，又一次迎来了图像增强技术的研究浪潮。
Nowadays, with the prevalence of digital Cameras, digital Videocon and other digital devices, a tidal wave of image enhancement techniques comes forth for a second time.
仿真结果表明，提出的对比度增强方法能根据对比度增强系数实现不同程度的对比度增强，有效地提高了显示设备的图像显示质量。
The simulation results show that the proposed contrast enhancement method can realize contrast enhancement in different extent, which improves the image quality of display devices effectively.
这些X射线相机设备是由一台X射线图像增强器和一台CCD相机构成的。其中，X射线入射窗的窗材是铝或铍。
These are X-ray camera units comprised of an X-ray image intensifier and a CCD camera. The X-ray input window is made of aluminum or beryllium.
这些X射线相机设备是由一台X射线图像增强器和一台CCD相机构成的。
These are X-ray camera units comprised of an X-ray image intensifier and a CCD camera.
这些X射线相机设备是由一台X射线图像增强器和一台CCD相机构成的。
These are X-ray camera units comprised of an X-ray image intensifier and a CCD camera.
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