图像的特征识别技术，是机器视觉和计算机图像识别的好教程。

所谓图像特征，换句话说就是图像中的物体有什么样的特征。图中有几个水果。要想从该图像中把香蕉提取出来，必须告诉计算机要提取什么样的物体。例如，应把香蕉的特征之一——细而长告诉给计算机。也就是说，要指示图像中物体的形状、大小等特征。即告诉计算机要提取的物体是大物体或是圆的、方的等。这时，就 要使用“大小”、“圆度”等表示物体形状的参数。

-The characteristics of image recognition technology, is a machine vision and computer image recognition of a good tutorial. The so-called image features, in other words is the image of objects, what kind of characteristics. There are several fruit map. Order from the images extracted from the banana, we must tell the computer what to extract objects. For example, should be one of the characteristics of the banana- thin and long to tell to the computer. In other words, to instruct the image object shape, size and other characteristics. That is, to tell the computer to extract the object is large or round objects, such as side. At this time, it is necessary to use the　size ,　roundness　that objects such as shape parameters.