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Image Transformation Operations

Similar to convolution, image transformation operations alter the values of the pixels in an image. Unlike the convolution, image transformation does not depend on the values of nearby pixels.

These functions fall into five broad groups:

• Functions to multiply the pixels by a matrix.

• Gamma correction functions.

• Functions to apply a set of piecewise polynomials to the pixels.

• Functions to apply the ratios of two sets of piecewise polynomials to the pixels.

• Functions to apply a lookup table to the pixels.

Contents:

Matrix Multiplication
Gamma Correction
Piecewise Polynomial Functions
Piecewise Rational Function
Lookup Table Functions

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