matlab特征点提取--记录自用

1. matlab提取处的点在envi上展示查看

（1）matlab上提取出的点matchedBoxPoints_1.Location 特征点的坐标表示顺序是（sample，line；sample，line；…）的向量格式
example :

sample 	line
291.59851	423.39377
141.65791	126.07227
397.73669	249.44423
437.10767	284.09854
325.32703	169.1884
231.25471	31.371555
269.69598	53.806072
193.61441	349.94635

2. ENVI里特征点展示的格式

;上面是五行注释符号;
;
;
;
;
sample1   line1   sample2   line2
sample1   line1   sample2   line2
sample1   line1   sample2   line2
sample1   line1   sample2   line2