 <p>The output of <code>resize</code> has a dtype of float, hence it is in the 0-1 range. You can convert your image back to uint8 range with:</p> <pre><code>from skimage import img_as_ubyte image = img_as_ubyte(image) </code></pre> <p>Please see the <a href="http://scikit-image.org/docs/dev/user_guide/data_types.html" rel="nofollow noreferrer">user guide</a> for a full description of data types and their ranges.</p>