In[]:=
i=
;​​corners=ImageCorners[i,3,.01,5]​​HighlightImage[i,corners]
Out[]=
{{797.5,1795.5},{761.5,1529.5},{808.5,1795.5},{961.5,1073.5},{721.5,1130.5},{709.5,1130.5},{994.5,329.5},{985.5,342.5},{992.5,342.5},{975.5,1064.5},{153.5,234.5},{993.5,723.5},{709.5,1119.5},{993.5,711.5},{1005.5,720.5},{972.5,1074.5},{1005.5,714.5},{961.5,1063.5},{1970.5,25.5},{1027.5,403.5}}
Out[]=