skimage2.metrics.peak_signal_noise_ratio#

skimage2.metrics.peak_signal_noise_ratio(image_true, image_test, *, data_range=None)[source]#

Compute the peak signal to noise ratio (PSNR) for an image.

Parameters:
image_truendarray

Ground-truth image, same shape as im_test.

image_testndarray

Test image.

data_rangeint, optional

The data range of the input image (distance between minimum and maximum possible values). By default, this is estimated from the image data-type.

Returns:
psnrfloat

The PSNR metric.

Notes

Changed in version 0.16: This function was renamed from skimage.measure.compare_psnr to skimage.metrics.peak_signal_noise_ratio.

References