Fourier Anime - Image Transforming by the "Fourier transform" -

Photo & Video

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

The Fourier Anime is an image transforming application using the "Fourier transform". Visual expressions applied pure mathematics are really various and it brings us ones beyond our imagination in some cases. The Fourier Anime, based on a widely used transformation theory of the "Fourier transform", produces extremely curious animations. How to use the app: 1.Take a photo or Choose your picture. 2.Waiting for a while during the converting. 3.You get the animation.Let’s share with E-Mail or Tumblr! Next Version : Coloring the animation. Share with Twitter and Facebook. About the "Fourier transform" : Waves can be expressed in the superposition of basic waves (sin or cos functions). Fourier Transform calculate the weight of each trigonometric function when waves are written as the sum of these functions. In our daily life, the transformation is utilized in various products such as mp3, JPEG compression or iTunes equalizer. How to convert images : 1. Edge Detect Differentiate the luminosity value of the monochrome input image, then we can get the edges where the luminosity are changing significantly. 2. Find Contours Extract contour curves from the edge image one by one. 3. Fourier Transform Contours are the sequences of points. Convert this complex sequences into Fourier coefficients by Fourier transform. 4. Low-pass Filter Leave only the coefficients of low-frequency parts. 5. Inverse Fourier Transform Reconstruct the complex sequences of points from low-pass filtered Fourier coefficients. And draw the curves in the display (parametric representation).

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

The developer, NEOPA INC., has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

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    Accessibility

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    Information

    Seller
    neopa Inc.
    Size
    21.1 MB
    Category
    Photo & Video
    Compatibility
    Requires iOS 7.0 or later.
    • iPhone
      Requires iOS 7.0 or later.
    • iPod touch
      Requires iOS 7.0 or later.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © NEOPA Inc.

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