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Fixed range issues with gocv

This commit is contained in:
Russell Stanley 2022-01-05 14:14:22 +10:30
parent e3252ed4bb
commit 88b9b58d18
3 changed files with 13 additions and 9 deletions
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7
exp/gocv-exp/main.go
View File

@ -1,3 +1,4 @@
//go:build !nocv
// +build !nocv // +build !nocv
// What it does: // What it does:
@ -93,8 +94,8 @@ func main() {
// now find contours // now find contours
contours := gocv.FindContours(imgThresh, gocv.RetrievalExternal, gocv.ChainApproxSimple) contours := gocv.FindContours(imgThresh, gocv.RetrievalExternal, gocv.ChainApproxSimple)
for _, c := range contours { for i := 0; i < contours.Size(); i++ {
area := gocv.ContourArea(c) area := gocv.ContourArea(contours.At(i))
if area < float64(minArea) { if area < float64(minArea) {
continue continue
} }
@ -104,7 +105,7 @@ func main() {
//gocv.DrawContours(&img, contours, i, statusColor, 2) //gocv.DrawContours(&img, contours, i, statusColor, 2)
rect := gocv.BoundingRect(c) rect := gocv.BoundingRect(contours.At(i))
gocv.Rectangle(&img, rect, color.RGBA{0, 0, 255, 0}, 1) gocv.Rectangle(&img, rect, color.RGBA{0, 0, 255, 0}, 1)
} }

7
filter/knn.go
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@ -1,3 +1,4 @@
//go:build !nocv
// +build !nocv // +build !nocv
/* /*
@ -117,9 +118,9 @@ func (m *KNN) Detect(img *gocv.Mat) bool {
// Find contours and reject ones with a small area. // Find contours and reject ones with a small area.
var contours [][]image.Point var contours [][]image.Point
allContours := gocv.FindContours(imgDelta, gocv.RetrievalExternal, gocv.ChainApproxSimple) allContours := gocv.FindContours(imgDelta, gocv.RetrievalExternal, gocv.ChainApproxSimple)
for _, c := range allContours { for i := 0; i < allContours.Size(); i++ {
if gocv.ContourArea(c) > m.area { if gocv.ContourArea(allContours.At(i)) > m.area {
contours = append(contours, c) contours = append(contours, allContours.At(i).ToPoints())
} }
} }

8
filter/mog.go
View File

@ -1,3 +1,4 @@
//go:build !nocv
// +build !nocv // +build !nocv
/* /*
@ -117,9 +118,10 @@ func (m *MOG) Detect(img *gocv.Mat) bool {
// Find contours and reject ones with a small area. // Find contours and reject ones with a small area.
var contours [][]image.Point var contours [][]image.Point
allContours := gocv.FindContours(imgDelta, gocv.RetrievalExternal, gocv.ChainApproxSimple) allContours := gocv.FindContours(imgDelta, gocv.RetrievalExternal, gocv.ChainApproxSimple)
for _, c := range allContours {
if gocv.ContourArea(c) > m.area { for i := 0; i < allContours.Size(); i++ {
contours = append(contours, c) if gocv.ContourArea(allContours.At(i)) > m.area {
contours = append(contours, allContours.At(i).ToPoints())
} }
} }