In LyX, I am placing 2 figures side-by-side by placing 2 subfloats inside a single float. This allows me to have individual captions for each subfloat and hence, each sub-figure. My problem is that the 2 figures are different sizes and are not aligned vertically. One figure is taller (longer) than the other and, as they are both aligned to the bottom of the float, the resulting output file doesn't look quite right.
I would like to align the side-by-side figures along their centerlines. Is it possible to do this, so as some whitespace will exist above and below both figures? Alternatively, is it possible to simply move the smaller figure upwards in a vertical direction from the bottom so that it lies somewhat centrally, relative to the other figure? I would prefer one of these options as opposed to messing about with resizing figures.
I have tried using various formatting tools such as Vertical Spaces to move the smaller figure upwards but none of these seem to be working. Any assistance on this matter would be appreciated as I have done numerous searches but the only available solutions I could find was to use minipages and vertical spaces. However, using minipages looses the captions in the sub-figures.