What is the difference between object recognition and detection?

Object Detection: 

As the name suggests, it's when the computer systems 'detect' the presence of an object. It does not matter what that object is and whether it's moving or standing still. In simpler words, it's just the 'presence' of the object that matters. 

Object Recognition:

This would be the second step. Once the object has been detected; the computer systems will need to find out what kind or type of object it is. This likely extends into finding out the various characteristics of the object that is being recognized - such as size, color, motion, temperature, proximity etc.

Thank you..  

So i need to recognize the object using tensorflow in python. 

Will the code used to distinguish human faces be different from the code used to distinguish between humans and animals, for example,?

 excuse me because my English is weak

It like when the computer detects an object, the object is just detected no matters whether it's like a pen, ball, bottle.

But when a computer recognizes something it detects the exact thing like if a smartphone is detected then it will be detected as a mobile phone object or if a person is detected then it will show that its a human.