You can Create/Store your image file(.jpg) into your Debug/Release folder which is the path from where your Application exe runs.
The following code gives you the path from where your Application is running:
String ApplicationFilePath = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase).Replace("file:\\", "");
The Above code returns the path similar to
SolutionFolder/ProjectFolder/bin/Debug(or)Release
So you can target your code to retrieve the image from the above location as it is avaialable even after deplyoing/Installing the Application on client PC.