Can You Set A Minimum Image Dimension For Resizing Images?

This could be a dumb idea, but what if you set it to 

add_image_size('gallery-image', 9999, 600);

As long as you don’t add ‘true’ it won’t crop, it scales to fit into the space by default. It would then try to fit into the smaller of the two, the height in this case, and scale down appropriately. Or you could do the width as the constraint and make the height the ridiculously large one.

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