I came across this question (How to Write a Tensor to PNG Image File?), which specifically asks how to write a tensor to an image file.
To me, this sounds like a programming question for Stack Overflow - or are programming questions about Tensorflow accepted here?
This question (Are questions about languages, libraries and databases on-topic?) seems similar, but I didn't immediately see how to apply the guidelines from the answer there (so, maybe it's not clear to others as well...)