Visualization of Activations

I am trying to visualize the effect of each layer in my cnn on the input image just like deep visualization toolkit. Any pointers to where I should get started from?

I like using visdom:

There are a few scripts for tensorboard and a few for visdom. Can you suggest, for a beginner like me, which one will be more fruitful to learn first? I know, eventually, I should be familiar with both, but for starting, which is a better choice?