对虚拟人图像数据作多种二维处理，包括图像几何变换、灰度增强、格式转换和压缩、图像配准和分割。

Many methods are used to finish VCH planar image processing, including image geometry transform, gray-scale enhancement format transition and compression , image registration and segmentation.

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采用像素点变换法，实现了根据三维物体的二维投影图像恢复物体表面的真实几何面积的设想，大大降低了缺陷面积计算的误差；

To decrease the relative errors, the pixel transform method was adopted to recover the geometrical feature of sphere fruit surface from projected image while the area of defect was calculated.

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