1. Strided Convolutions
1) After each convolution, the convolution kernel moves s = stride pixels
2) The size of the image after convolution is: [(n + 2p - f) / s] + 1 + 1 * [(n + 2p - f) / s] + 1
Note: if [(n + 2p - f) / s] + 1 is not an integer then it is rounded to the left
2. Summary: Convolution Dimension
You don't have to choose to make the result an integer, just round it to the left.