Officials from the city of Suzhou later apologised for the images, saying they would blur the photos in the future.
"We wanted to put an end to uncivilised behaviour, but of course we should protect residents' privacy," officials said in a statement.
In August last year the Suzhou City Administration Bureau posted an announcement on WeChat, asking members of the public to submit photos showing uncivilised behaviour, according to The Paper.
The request from the city said officials were seeking photos clear photos that showed people's faces, in the interest of improving the city.
The city offered a cash reward for the photos of 10 Chinese Yuan, or about $2.12.