Unit 3 Upload an image

With respect to the image, can it be any image taken from the internet or is it a specific one?
Por ejemplo una imagen .jpg o .png

You can upload any image from the internet. The format, any supported format by LabelImg program (check its documentation here: https://github.com/tzutalin/labelImg).
The idea is that you upload an image and practice how to use the program to label objects and get the XML file with the annotated information