Matlab绘制3-D图形的几个例子，很详细，也很全面的介绍了绘制3-D图形的函数，其中最后一个是画直方图的，横向和纵向都有例子。-Matlab 3-D graphics to draw a few examples of very detailed and very comprehensive introduction to drawing 3-D graphics functions, the last one is the histogram drawing, horizontal and

画图像的直方图，先通过统计的方法，得到统计块数，可自行定义横纵坐标-Draw image histogram, first by statistical methods, the statistics the number of blocks, you can define horizontal and vertical coordinates

The basic steps of the connected-component text extraction algorithm are given below, and diagrammed in Figure 10. The details are discussed in the following sections. 1. Convert the input image to YUV color space. The luminance(Y) value is used