relax people
the liquify method is just a quick and dirty way to do things...
the perspective tool does straighten the buildings, though on the other hand, when everything becomes perfectly vertical, the sense of depth inherent in the skewed perspective is reduced, which may actually make the image look a bit weird... so, to get a more "natural looking" image, we might not want to totally reduce the perspective skewing...
but one thing about the perspective tool: by just tigtening the top, one would also make the contents of the image narrower (not just the image as a whole narrower but the contents of the image like the buildings, etc. become narrower than originally it was captured)... so it would be good to also widen the image slightly to maintain the aspect ratio of the contents, or to make corrections half via the top skewing inwards and half via the bottom skewing outwards to get the same effect of maintaining the aspect ratio of the contents... (a lot of yakking to think about... which was why I introed the quick and dirty method in the first place )
of course, we can do a little of both... reduce the overall skew, and definitively straighten the tower with liquify... YMMV
the liquify method is just a quick and dirty way to do things...
the perspective tool does straighten the buildings, though on the other hand, when everything becomes perfectly vertical, the sense of depth inherent in the skewed perspective is reduced, which may actually make the image look a bit weird... so, to get a more "natural looking" image, we might not want to totally reduce the perspective skewing...
but one thing about the perspective tool: by just tigtening the top, one would also make the contents of the image narrower (not just the image as a whole narrower but the contents of the image like the buildings, etc. become narrower than originally it was captured)... so it would be good to also widen the image slightly to maintain the aspect ratio of the contents, or to make corrections half via the top skewing inwards and half via the bottom skewing outwards to get the same effect of maintaining the aspect ratio of the contents... (a lot of yakking to think about... which was why I introed the quick and dirty method in the first place )
of course, we can do a little of both... reduce the overall skew, and definitively straighten the tower with liquify... YMMV