Minimum Height min-h

The minimum allowed height of the output image.

Must be an integer greater than 0. This parameter will only work if fit=crop is present.

This feature is particularly useful for vertically-scrolling feeds that display user-uploaded images. By specifying a minimum height for each image, useful previews will still be generated for very wide, short panoramas.

fit=crop&w=300&min-h=50
Min height 50px, not expanded
fit=crop&w=300&min-h=300
Min height 300px, expanded

See the API specification for more information about this parameter's value ranges and format.