retouch an image

[Obelix]

Hello everybody, I am new in the forum and I would like to know if anyone can help me with an image taken in a wonderful clear sky but that has some dust in some parts of it. I need to get rid of it but I am not sure how.

Is there anyone?
Obe

 

[sw.]

do you have the pic? ill have a look

 

[Tutostube]

send the link of the image to see what can be done

 

[klvn]

send the image to kurtkutty@gmail.com.