skimage2.util.compare_images

skimage2.util.compare_images(image0, image1, *, method='diff', n_tiles=(8, 8))

Return an image showing the differences between two images.

Added in version 0.16.

Parameters:

image0, image1ndarray, shape (M, N)

Images to process, must be of the same shape.

Changed in version 0.24: image1 and image2 were renamed into image0 and image1 respectively.

method{‘diff’, ‘blend’, ‘checkerboard’}, optional

Method used for the comparison. Details are provided in the note section.

Changed in version 0.24: This parameter and following ones are keyword-only.

n_tilestuple, optional

Used only for the checkerboard method. Specifies the number of tiles (row, column) to divide the image.

Returns:

comparisonndarray, shape (M, N)

Image showing the differences.

Notes

'diff' computes the absolute difference between the two images. 'blend' computes the mean value. 'checkerboard' makes tiles of dimension n_tiles that display alternatively the first and the second image. Note that images must be 2-dimensional to be compared with the checkerboard method.