Breaking News: Grepper is joining You.com. Read the official announcement!

python how to get pixel values from image

Add Answer

Ben Edwards answered on April 21, 2022 Popularity 9/10 Helpfulness 5/10

answer python how to get pixel values from image

related python how to get pixel values from image

related python how to change the image pixel values

python how to get pixel values from image

Comment

# Third party modules
import numpy
from PIL import Image


def get_image(image_path):
    """Get a numpy array of an image so that one can access values[x][y]."""
    image = Image.open(image_path, "r")
    width, height = image.size
    pixel_values = list(image.getdata())
    if image.mode == "RGB":
        channels = 3
    elif image.mode == "L":
        channels = 1
    else:
        print("Unknown mode: %s" % image.mode)
        return None
    pixel_values = numpy.array(pixel_values).reshape((width, height, channels))
    return pixel_values


image = get_image("gradient.png")

print(image[0])
print(image.shape)

Popularity 9/10 Helpfulness 5/10 Language python

Source: stackoverflow.com

Tags: get image pixel python

Link to this answer
Share Copy Link

Contributed on Apr 21 2022

Ben Edwards

0 Answers Avg Quality 2/10

Closely Related Answers

python how to get pixel values from image

Comment

from PIL import Image

def get_image(image_path):
    image = Image.open(image_path).convert("L")
    pixel_values = list(image.getdata())

    return pixel_values

Popularity 9/10 Helpfulness 6/10 Language python

Source: Grepper

Tags: get

Link to this answer
Share Copy Link

Contributed on Apr 21 2022

Ben Edwards

0 Answers Avg Quality 2/10

python how to change the image pixel values

Comment

from PIL import Image

def change_image_pixel_values(imaged_path,by_value):
    # Import an image from directory:
    input_image = Image.open(imaged_path)
    
    # Extracting pixel map:
    pixel_map = input_image.load()
    
    # Extracting the width and height 
    # of the image:
    width, height = input_image.size
    
    # taking half of the width:
    for i in range(width):
        for j in range(height):
            
            # getting the RGB pixel value.
            red, green, blue, p = input_image.getpixel((i, j))

            red -= by_value
            green -= by_value
            blue -= by_value
            # setting the pixel value.
            pixel_map[i, j] = (red,green,blue)
    
    # Saving the final output
    # as "grayscale.png":
    input_image.save(imaged_path, format="png")

Popularity 8/10 Helpfulness 6/10 Language python

Source: Grepper

Tags: image pixel pixe

Link to this answer
Share Copy Link

Contributed on Jul 31 2022

Yair Mizrachi

0 Answers Avg Quality 2/10

python how to get pixel values from image

Contents

More Related Answers

python how to get pixel values from image

Closely Related Answers

python how to get pixel values from image

python how to change the image pixel values

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.