用matlab实现的白平衡算法，检测图像中的高亮点作为理想白点，计算校正系数-Use white balance algorithm matlab realize, the the detection image bright spot as the ideal white point, calculate the correction factor

SIFT算子检测特征点RANSAC算法优化完成图像拼接-SIFT feature point detection operator RANSAC algorithm optimization of image stitching

Multispectral remotely sensing imagery with high spatial resolution, such as QuickBird, IKONOS satellite imagery or Aerial imagery, especially in urban scenes, often perform spectral variations and rich details within a category, resulting in