diff --git a/cgo.go b/cgo.go
new file mode 100644
index 0000000..3b82e47
--- /dev/null
+++ b/cgo.go
@@ -0,0 +1,14 @@
+//go:build !customenv && !static
+// +build !customenv,!static
+
+package fynewidgets
+
+// Changes here should be mirrored in contrib/cgo.go and cuda/cgo.go.
+
+/*
+#cgo !windows pkg-config: opencv4
+#cgo CXXFLAGS:   --std=c++11
+#cgo windows  CPPFLAGS:   -I/mingw64/include/opencv4
+#cgo windows  LDFLAGS:    -L/mingw64/lib -lopencv_core -lopencv_face -lopencv_videoio -lopencv_imgproc -lopencv_highgui -lopencv_imgcodecs -lopencv_objdetect -lopencv_features2d -lopencv_video -lopencv_dnn -lopencv_xfeatures2d -lopencv_plot -lopencv_tracking -lopencv_img_hash -lopencv_calib3d -lopencv_bgsegm -lopencv_photo -lopencv_aruco
+*/
+import "C"
diff --git a/go.mod b/go.mod
index 28ff07d..cdc62dc 100644
--- a/go.mod
+++ b/go.mod
@@ -18,6 +18,7 @@ require (
 	github.com/srwiley/rasterx v0.0.0-20200120212402-85cb7272f5e9 // indirect
 	github.com/stretchr/testify v1.5.1 // indirect
 	github.com/yuin/goldmark v1.3.8 // indirect
+	gocv.io/x/gocv v0.29.0 // indirect
 	golang.org/x/image v0.0.0-20200430140353-33d19683fad8 // indirect
 	golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4 // indirect
 	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c // indirect
diff --git a/go.sum b/go.sum
index 9f46c36..b6be12d 100644
--- a/go.sum
+++ b/go.sum
@@ -27,6 +27,7 @@ github.com/godbus/dbus/v5 v5.0.4 h1:9349emZab16e7zQvpmsbtjc18ykshndd8y2PG3sgJbA=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/goki/freetype v0.0.0-20181231101311-fa8a33aabaff h1:W71vTCKoxtdXgnm1ECDFkfQnpdqAO00zzGXLA5yaEX8=
 github.com/goki/freetype v0.0.0-20181231101311-fa8a33aabaff/go.mod h1:wfqRWLHRBsRgkp5dmbG56SA0DmVtwrF5N3oPdI8t+Aw=
+github.com/hybridgroup/mjpeg v0.0.0-20140228234708-4680f319790e/go.mod h1:eagM805MRKrioHYuU7iKLUyFPVKqVV6um5DAvCkUtXs=
 github.com/jackmordaunt/icns v0.0.0-20181231085925-4f16af745526/go.mod h1:UQkeMHVoNcyXYq9otUupF7/h/2tmHlhrS2zw7ZVvUqc=
 github.com/josephspurrier/goversioninfo v0.0.0-20200309025242-14b0ab84c6ca/go.mod h1:eJTEwMjXb7kZ633hO3Ln9mBUCOjX2+FlTljvpl9SYdE=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
@@ -35,6 +36,7 @@ github.com/lucor/goinfo v0.0.0-20200401173949-526b5363a13a/go.mod h1:ORP3/rB5Isu
 github.com/lucor/goinfo v0.0.0-20210802170112-c078a2b0f08b/go.mod h1:PRq09yoB+Q2OJReAmwzKivcYyremnibWGbK7WfftHzc=
 github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
+github.com/pascaldekloe/goe v0.1.0/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
@@ -56,6 +58,8 @@ github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/yuin/goldmark v1.3.8 h1:Nw158Q8QN+CPgTmVRByhVwapp8Mm1e2blinhmx4wx5E=
 github.com/yuin/goldmark v1.3.8/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
+gocv.io/x/gocv v0.29.0 h1:Zg5ZoIFSY4oBehoIRoSaSeY+KF+nvqv1O1qNmALiMec=
+gocv.io/x/gocv v0.29.0/go.mod h1:oc6FvfYqfBp99p+yOEzs9tbYF9gOrAQSeL/dyIPefJU=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=