local histogram meaning in Chinese

局部直方图

In this paper , we speed up lahe by presenting two slight modifications of the algorithm . firstly , in the computation of the local histogram , once a - by - square has been computed , the histogram for each successive square can be computed using only additions and subtractions
首先，在计算相关区域的直方图时，通过平移矩形区域减少了计算直方图所需的时间；其次，由于变换函数就是累积直方图，所以计算变换后的灰度时，利用对分的思想可以将效率进一步提高。