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Calculating the variance of all pixels for each band in an image using the Pillow library
In this program, we will calculate the variance of all the pixels in each channel using the Pillow library. There are a total three channels in an image and therefore, we will get a list of three values.
Original Image
Algorithm
Step 1: Import the Image and ImageStat libraries. Step 2: Open the image. Step 3: Pass the image to the stat function of the imagestat class. Step 4: Print the variance of the pixels.
Example Code
from PIL import Image, ImageStat
im = Image.open('image_test.jpg')
stat = ImageStat.Stat(im)
print(stat.var)Output
[5221.066590958682, 4388.697801428673, 4291.257706548981]
Updated on: 18-Mar-2021
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