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Image processing tips using ruby-vips 30/11/19 @kagoshima-rubykaigi01 Takashi Miyahara, MedPeer,Inc,ɹɹɹɹɹɹɹɹɹɹɹ

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Self-Introduction » Name: Takashi Miyahara / @TakashiMiyahara » Work: Community site for doctors » hobby: Camera ! , Self-made keyboard Work history » Sony Global Manufacturing & Operations Corp.(2017-04 ~ 2019-09) » MedPeer,Inc.(2019-10 ~)

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Have you ever image processing?

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What is libvips? » Open source image processing software package » Written in C, GTK+ » Works with multi-core processors » Low RAM consumption » multiple language wrappers (Python, Ruby, PHP, Lua, JavaScript) libvips link

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Get Started for macOS

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Get Started for ubuntu/debian

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How to use libvips in Ruby

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Everyone uses Rails, right?

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How to use libvips in Rails image_processing can be used from Rails 6.0.0 (#32471)

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Convert color image to grayscale image

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Convert color image to grayscale image

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Convert color image to grayscale image

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Convert color image to black and white image

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Convert color image to black and white image

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Image resizing :size down

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Image resizing :size up

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Our products kakari link

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Our products

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Output fax (Before)

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Vips started to work with our products

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Output fax (After)

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Thank you