ImageMagick能否返回图片大小？

我从命令行使用ImageMagick调整图片大小：

I'm using ImageMagick from the command line to resize images:

convert -size 320x240 image.jpg

但是，我不知道如何确定最终图像的大小。由于这是一个成比例的图像缩放，新图片很有可能是100x240或320x90（不是320x240）。

However, I don't know how to determine the size of the final image. Since this is a proportional image scale, it's very possible that new image is 100x240 or 320x90 in size (not 320x240).

我可以调用'convert'图像并返回新的图像尺寸？例如，伪代码：

Can I call the 'convert' command to resize the image and return the new image dimensions? For example, pseudo code:

convert -size 320x240 -return_new_image_dimension image.jpg   // returns the new resized image dimensions