Answers for "image open gray python without scale"

2

Image to grayscale using python

import numpy as np
import matplotlib.pyplot as plt
import matplotlib.image as mpimg

def rgb2gray(rgb):
    return np.dot(rgb[...,:3], [0.299, 0.587, 0.144])

img = mpimg.imread('img.png')

gray = rgb2gray(img)

plt.imshow(gray, cmap='gray')

plt.savefig('greyscale.png')
plt.show()
Posted by: Guest on July-22-2021
-1

detect grayscale image in python opencv

import cv2
file = "myFile.jpj"


image = cv2.imread(file)
if image.any() != None:
  if(len(image.shape)<2):
        print ('grayscale')
  elif len(image.shape)==3:
        print ('Colored')
else:
  print("cannot find image")
Posted by: Guest on August-26-2021

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