Ruby Sees the World: Automatic Measurement from Photos
March 23, 2026
Published on RubyStackNews
What if Ruby could look at a photo of a house and tell you the width of the door, the height of the windows, and the total wall length?
That is not science fiction. It is photogrammetry. And it is buildable in pure Ruby with ruby-libgd.
This article walks through the full pipeline: edge detection, Hough transform, scale calibration from a credit card reference, and measurement overlay on the original photo.
👉 Read the full article.
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Ruby Sees the World: Automatic Measurement from Photos March 23, 2026 Published on RubyStackNews What if Ruby could look at a photo of a house and tell you the width of the door, the height of the …
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German Silva ( @ruby_stack_news )
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