wrapper - OpenCV in Go without SWIG and third-parties lib -


main goal: make opencv work in go without swig , third party lib (an application compare image in linux using go)

i new in kits (opencv go , linux)

  1. can image detection (feature2d etc) can done c-api only? there no convenient way call c++ code , c-api not updated(?)

  2. i have followed how use c++ in go? failed. when make, got following errors

makefile:5: /usr/local/go/bin/src/make.amd64: no such file or directory
makefile:6: /usr/local/go/bin/src/make.pkg: no such file or directory
makefile:8: * missing separator. stop.

the makefile followed

goroot=/usr/local/go/bin      goarch=amd64      targ=foo      cgofiles=foo.go      include $(goroot)/src/make.$(goarch)      include $(goroot)/src/make.pkg      foo.o:foo.cpp      g++ $(_cgo_cflags_$(goarch)) -fpic -o2 -o $@ -c $(cgo_cflags) $<      cfoo.o:cfoo.cpp      g++ $(_cgo_cflags_$(goarch)) -fpic -o2 -o $@ -c $(cgo_cflags) $<      cgo_ldflags+=-lstdc++      $(elem)_foo.so: foo.cgo4.o foo.o cfoo.o      gcc $(_cgo_cflags_$(goarch)) $(_cgo_ldflags_$(goos)) -o $@ $^ $(cgo_ldflags)

thanks lot

you can't call c++ code without either writing c wrappers (+ cgo) or using swig, that's way sadly.

that post linked extremely outdated , can't used anymore.

on other hand, can start rewriting opencv in pure go, speed differences won't massive, specially if learn how use unsafe speed-critical parts.

disclaimer using unsafe not advised since, well, it's unsafe.


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