Image Norms

The functions described in this section compute the following norms of the image pixel values:

• Infinity norm (the largest absolute pixel value)
• L1 norm (the sum of absolute pixel values)
• L2 norm (the square root of the sum of squared pixel values).

Functions of this group also help you compute the norm of differences in pixel values of two input images as well as the relative error for two input images.

• Norm_Inf
  Computes the infinity norm of image pixel values.
• Norm_L1
  Computes the L1- norm of image pixel values.
• Norm_L2
  Computes the L2- norm of image pixel values.
• NormDiff_Inf
  Computes the infinity norm of differences between pixel values of two images.
• NormDiff_L1
  Computes the L1- norm of differences between pixel values of two images.
• NormDiff_L2
  Computes the L2- norm of differences between pixel values of two images.
• NormRel_Inf
  Computes the relative error for the infinity norm of differences between pixel values of two images.
• NormRel_L1
  Computes the relative error for the L1 norm of differences between pixel values of two images.
• NormRel_L2
  Computes the relative error for the L2 norm of differences between pixel values of two images.

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