Select the Rectangular Marquee Tool (m) and create two 1px lines on top of each other; the lines should be 850 pixels wide from the left guide to the right guide.
选择矩形选框工具(m)层叠的创建两个1px的线条；宽度为850px，从左参考线到右参考线。
Dividing pixels in rectangular and circular regions into subpixels and determining weight of each subpixel the composite weighted region energy of each pixel is obtained in the region.
对矩形和圆形区域中各像素进行亚像素划分，确定各亚像素的权值，得到基于亚像素的综合加权区域能量。
The CORDIC algorithm is adapted to convert the polar coordinate image to the rectangular coordinate image, while cubic spline interpolation is used to interpolate the vacant pixels.
本文采用数字坐标旋转（CORDIC）算法将极坐标图像转化为直角坐标图像，并采用三次样条插值的方法对漏点进行弥补。
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