c achieve sift algorithm relies opencv, but not complicated, there are steps have to explain, suitable for studying fellow who sift algorithm.

sift_c
......\sift
......\....\Debug
......\....\.....\sift.exe
......\....\.....\sift.ilk
......\....\.....\sift.pdb
......\....\ipch
......\....\....\sift-ed73de13
......\....\....\.............\sift-4d88d322.ipch
......\....\sift
......\....\....\1.jpg
......\....\....\Debug
......\....\....\.....\CL.read.1.tlog
......\....\....\.....\CL.write.1.tlog
......\....\....\.....\link-cvtres.read.1.tlog
......\....\....\.....\link-cvtres.write.1.tlog
......\....\....\.....\link.read.1.tlog
......\....\....\.....\link.write.1.tlog
......\....\....\.....\mt.read.1.tlog
......\....\....\.....\mt.write.1.tlog
......\....\....\.....\rc.read.1.tlog
......\....\....\.....\rc.write.1.tlog
......\....\....\.....\sift.exe.embed.manifest
......\....\....\.....\sift.exe.embed.manifest.res
......\....\....\.....\sift.exe.intermediate.manifest
......\....\....\.....\sift.lastbuildstate
......\....\....\.....\sift.log
......\....\....\.....\siftDemo.obj
......\....\....\.....\sift_manifest.rc
......\....\....\.....\vc100.idb
......\....\....\.....\vc100.pdb
......\....\....\sift.vcxproj
......\....\....\sift.vcxproj.filters
......\....\....\sift.vcxproj.user
......\....\....\siftDemo.cpp
......\....\sift.sdf
......\....\sift.sln
......\....\sift.suo

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