此外，在某些情形下，图像大小的计算结果可能不正确，因此图像会发生变形。
Additionally, in certain cases, images sizes can be calculated incorrectly, and, as a result, the image might appear distorted.
应用盒子维法对改造后的灰度图像提取分形维数，计算结果表明该方法非常有效的表征了工件表面质量状况。
And gets the fractal dimension from the processed gray image by using method of box dimension, the calculation result indicates that it effectively represents the quality of the workpiece surface.
计算结果表明，该方法可有效复原图像，在客观标准评价和主观视觉效果方面都有明显的改善。
Numerical results show that these methods can effectively restore original image, and the objective standard evaluation and subjective visual effect are improved significantly.
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