image which just means you want to produce different versions of the same image in this case down here this is a random crop it's cropped about here it's still the same image but it's a different version of it in the case here you can see that it's flipped left right and the brightness is slightly increased so these are just different versions of the same image and what you also want are what's called negatives negatives are simply different images from your data set right for example this or this or this you don't