gcv.FindX error exception

[bylkamar]

• gcv version (or commit ref): v0.33.0
• Go version: 1.20.5

• Operating system and bit: Windows 10
  • Not relevant
• Provide example code:

package main

import (
	"github.com/go-vgo/robotgo"
	"github.com/vcaesar/gcv"
)

func main() {

	img := robotgo.CaptureImg()
	checkGameOpen, _, _ := robotgo.DecodeImg("test.png")
	x,y:= gcv.FindX(checkGameOpen, img)
	println(x,y)
}

• Log gist:

Description

The code above is working when image is found on screen but there no possibility to handle the error when the image is not available on the screen. The function does not return any error just only two int can you add possibility to catch the error ?

[a13x212]

I’m running into the same issue so tracked it down to:

https://github.com/vcaesar/gcv/blob/main/cv.go#L129-L140
Function FindAll which will eventually call FindAllSift and SIGSEGV.

If no image is found, res = 0 in Function FindAll.

I’m not familiar with opencv swift so it’s unclear why FindAllSift is called if res = 0. Maybe @vcaesar can offer some input here.

[txj-xyz]

Having same issues