ston1th/webcam
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added controls

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This commit is contained in:
ston1th 2021-02-07 14:41:48 +01:00
commit 45063b7d97
3 changed files with 167 additions and 3 deletions
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15
examples/color.go
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@ -90,6 +90,14 @@ func check(c color.Color) bool {
//}
return false
}
func check2(c color.Color) bool {
//r, g, b, _ := c.RGBA()
r, g, b, _ := c.RGBA()
if r < 10000 && g > 8000 && b > 8000 {
return true
}
return false
}
func set(img *image.RGBA, x, y int) {
img.Set(x, y, color.White)
@ -102,6 +110,10 @@ func set(img *image.RGBA, x, y int) {
//}
}
func set2(img *image.RGBA, x, y int) {
img.Set(x, y, color.RGBA{90, 90, 90, 0})
}
func mark(img image.Image) {
o := jpeg.Options{100}
r := img.Bounds()
@ -119,6 +131,9 @@ func mark(img image.Image) {
if check(img.At(x, y)) {
set(n, x, y)
}
if check2(img.At(x, y)) {
set2(n, x, y)
}
}
}
wg.Done()

23
examples/main.go
View file

@ -5,8 +5,8 @@ import (
//"encoding/hex"
"fmt"
"image"
"image/jpeg"
"os"
//"image/jpeg"
//"net/http"
"git.giftfish.de/ston1th/webcam"
"time"
@ -22,6 +22,20 @@ func main() {
}
defer cam.Close()
ctrl := cam.GetControls()
for k, value := range ctrl {
fmt.Fprintln(os.Stderr, k)
for _, v := range value {
fmt.Fprintln(os.Stderr, " "+v)
}
}
// https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/control.html#control-ids
err = cam.SetControl(webcam.V4L2_CID_CONTRAST, 0)
if err != nil {
panic(err.Error())
}
formats := cam.GetPixelFormats()
println("Available formats: ")
for k, value := range formats {
@ -65,10 +79,13 @@ func main() {
default:
panic(err.Error())
}
frm, err := cam.ReadFrame()
//frm, err := cam.ReadFrame()
o := jpeg.Options{100}
img, err := cam.ReadJPEG()
jpeg.Encode(os.Stdout, img, &o)
if err == nil {
//print(".")
os.Stdout.Write(frm)
//os.Stdout.Write(frm)
os.Stdout.Sync()
}
}