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Currently the helper
.thumb
first performs a.size
, computes crop dimensions, and then crops and resizes the image.I want to generate thumbnails but tried to avoid this two-pass method. I bumped into a superuser question which uses the
-thumbnail
option, but this is not available in gm.This pull requests extends args with support for thumbnail, includes a simple test, and an example. I reckon thumbnail might conflict with thumb in a naming sense, but its the official name.