图象识别

Question

-----------------------------------------------------
  |  A图像                                            |
  |                                                   |
  |                                                   |
  |                                                   |
  |                                                   |
  |                                                   |
  |                                                   |
  |                                                   |
  |                                                   |
  -----------------------------------------------------
如果 A图像里多出一个B图像
  -----------------------------------------------------
  |  A图像                                            |
  |                                                   |
  |                                                   |
  |                 -----------                       |
  |                |           |                      |
  |                |   B图像   |                      |
  |                |           |                      |
  |                |           |                      |
  |                 -----------                       |
  -----------------------------------------------------
我怎么快速的知道B图像出现的位置?

Answer 1

掃描两次，形成差值列表，对列表进行排序，挑出一个区域就是结果