本程序要求输入的图像都是256色的位图。这个代码实现了对图像的几何变换。使用了双线性插值算法-This program requires the input images are 256-color bitmap. This code implements the geometric transformation of image. Using a bilinear interpolation algorithm

word详细介绍了Windows位图（Bitmap）和调色板（Palette）、图象的几何变换、图象的平滑（去噪声），sourse里有对应的代码-word detailing the Windows bitmap (Bitmap) and Palette (Palette), geometric transformations, image smoothing the image (to noise), sourse there is a corresponding code