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ImageTools[Quality] - compute the quality measure of a reconstructed image
Calling Sequence
Quality( img_r, img_s, meas, opts )
Parameters
img_r
-
Image; reconstructed image
img_s
Image; source image
meas
(optional) name; quality measure
opts
(optional) equation(s) of the form option = value; specify options for the Quality command
Description
The Quality command computes the quality measure of a reconstructed image with respect to a source image.
The img_r and img_s parameters are the reconstructed and the source images, respectively. They must be grayscale images and have the same width, height, and order (C_order or Fortran_order).
Quality Measures
The optional meas parameter is a name specifying the quality measure. It can take one of the following values, the default is mse:
mse: mean-squared error. , where are the reconstructed and source images, range over all pixels, and are the width and height.
rmse: root-mean-squared error (rms). .
snr: signal-to-noise ratio. .
psnr: peak signal-to-noise ratio. .
Options
peak = realcons
Specifies the peak value to use for the peak signal-to-noise ratio (psnr) calculation. It is ignored for the other cases. The default is 1.
Examples
See Also
ImageTools
Download Help Document
