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When we zoom a image, we have to decided the color of intermediate pixels. Bi-cubic interpolation based on b-spline is one of the methods to scale out an image. This program implements the interpolation algorithm with OpenGL Shader. The main part of the algorithm is implemented in fragment shader.

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gonglixue/Image-interpolation-with-B-Spline-bi-cubic-algorithm

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When we zoom a image, we have to decided the color of intermediate pixels. Bi-cubic interpolation based on b-spline is one of the methods to scale out an image. This program implements the interpolation algorithm with OpenGL Shader. The main part of the algorithm is implemented in fragment shader.

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