0x64746b / python-cpbd

A Python port of the MATLAB reference implementation
Other
54 stars 24 forks source link

No imread() in 2020's Scipy v1.5.x. How to read image to feed to cpbd.compute() ? #2

Open RubinXnibu opened 3 years ago

RubinXnibu commented 3 years ago

I am unable to read an image for cpbd.compute() to process. The example usage in README is broken.

This code: from scipy import ndimage input_image = ndimage.imread('/tmp/LIVE_Images_GBlur/img4.bmp', mode='L')

Results in: AttributeError: module 'scipy.ndimage' has no attribute 'imread'

The docs for Scipy say imread was removed in version 1.2, "imread is deprecated in SciPy 1.0. 0, and will be removed in 1.2." https://docs.scipy.org/doc/scipy-1.2.1/reference/generated/scipy.misc.imread.html

I have found a StackOverflow page that recommends using image.io: https://stackoverflow.com/questions/15345790/scipy-misc-module-has-no-attribute-imread

However, there is no mode="L" parameter, just a format param, which overrides the image format guess from the extension (ie format="JPEG").

 import imageio
 iio_image = imageio.imread(inputpath)
 cpbd_focus1 = cpbd.compute(iio_image)

However, using plain imageio.imread results in cpbd complaining about the input shape, because its in RGB. ValueError: The parameter image must be a 2-dimensional array

If I convert the image to grayscale, it works.

import cpbd import cv2 import imageio iio_image = imageio.imread('testimg.jpg') grey_iio_image = cv2.cvtColor(iio_image, cv2.COLOR_BGR2GRAY) cpbd.compute(grey_iio_image) 0.25540727105384264

Please update your README to address this change in modern scipy.

Thank you!!

NeelKanwal commented 3 years ago

After installing, there is error in CPBD, tried to reduce the version of scipy but did not work for me.

ImportError Traceback (most recent call last)

in () ----> 1 import cpbd 2 cpbd.compute(img) 1 frames /usr/local/lib/python3.7/dist-packages/cpbd/compute.py in () 12 13 import numpy as np ---> 14 from scipy.ndimage import imread 15 from skimage.feature import canny 16 ImportError: cannot import name 'imread' from 'scipy.ndimage' (/usr/local/lib/python3.7/dist-packages/scipy/ndimage/__init__.py) --------------------------------------------------------------------------- NOTE: If your import is failing due to a missing package, you can manually install dependencies using either !pip or !apt. To view examples of installing some common dependencies, click the "Open Examples" button below.
mahtabbigverdi commented 2 years ago

I have the same problem!

ajlok3 commented 1 year ago

You can replace the corresponding line with: from matplotlib.pyplot import imread