The accuracy and efficiency of the sharpness function was a key to auto-focusing based on digital image processing technique.
准确有效的图像清晰度评价函数是采用数字图像处理技术实现自动调焦的关键。
The viewfinder image is crucial for accurate focusing of the lens, and therefore greatly influences image sharpness. Different photographic applications often require different focusing screens.
取景器图像对镜头精确对焦是非常重要的，它将影响图像的清晰度。拍摄不同用途的照片常常需要不同的对焦屏。
The viewfinder image is crucial for accurate focusing of the lens, and therefore greatly influences image sharpness. Different photographic applications often require different focusing screens.
取景器图像对镜头精确对焦是非常重要的，它将影响图像的清晰度。拍摄不同用途的照片常常需要不同的对焦屏。
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