It does not work for other images

[ProtikNag]

I have cloned your repository and compiled it. For the picture you added to the repository it works perfectly. But with different images it shows only a black window. Is there any criteria to select image? I have used all images in jpeg format.

[yashwant43]

same problem

[16sweetyjain]

same problem

[JohnReddon]

same problem, still not solved.