How linear interpolation works in Image Processing and Computer Graphics.

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Linear interpolation is a fundamental algorithm in computer graphics and image processing used to estimate values between known data points. The technique extends from 1D linear interpolation to 2D bilinear interpolation for image resizing and 3D trilinear interpolation for volumetric data. Python implementations demonstrate practical applications including image upsampling and downsampling, with examples showing how the algorithm creates smooth transitions by averaging neighboring pixel values.

Linear Interpolation