In the program I'm making I have a pixtureBox (.NET) that is used to show related images. I found images after searching online, and some are CC BY-SA 2.0, 3.0, 4.0, and some belong to the public domain.
I read the related FAQ of Creative Commons, but its kind of vague as in it does not give me a clear enough image of what should I do if I intend to use the pictures in an application.
What I've done 'till now is to have a ToolTip pop-up message showing when the user gets the mouse pointer over the pictureBox, showing the name of the photographer, and the name of the license, of the current image. Is that adequate enough ?