Die Funktion sepia_tone() ist eine eingebaute Funktion in der Python Wand ImageMagick-Bibliothek, die verwendet wird, um einen Sepia-Ton-Effekt zu erzeugen.
 

Syntax: 
 

sepia_tone(schwelle)

Parameter: Diese Funktion akzeptiert einzelne Parameter wie oben erwähnt und unten definiert: 
 

• Schwelle: Dieser Parameter speichert den Schwellenwert des Effekts.

Rückgabewert: Diese Funktion gibt das Wand ImageMagick-Objekt zurück.

Original Bild: 
 

Beispiel 1: 
 

# Import library from Image
from wand.image import Image
 
# Import the image
with Image(filename ='../geeksforgeeks.png') as image:
    # Clone the image in order to process
    with image.clone() as sepia_tone:
        # Invoke sepia_tone function with threshold as 0.8
        sepia_tone.sepia_tone(0.8)
        # Save the image
        sepia_tone.save(filename ='sepia_tone1.jpg')

Ausgabe: 
 

Beispiel 2: 
 

# Import libraries from the wand 
from wand.image import Image
from wand.drawing import Drawing
from wand.color import Color
 
with Drawing() as draw:
    # Set Stroke color the circle to black
    draw.stroke_color = Color('black')
    # Set Width of the circle to 2
    draw.stroke_width = 1
    # Set the fill color to 'White (# FFFFFF)'
    draw.fill_color = Color('white')
 
    # Invoke Circle function with center at 50, 50 and radius 25
    draw.circle((200, 200), # Center point
                (100, 100)) # Perimeter point
    # Set the font style
    draw.font = '../Helvetica.ttf'
    # Set the font size
    draw.font_size = 30
     
    with Image(width = 400, height = 400, background = Color('# 45ff33')) as pic:
        # Set the text and its location
        draw.text(int(pic.width / 3), int(pic.height / 2), 'GeeksForGeeks !')
        # Draw the picture
        draw(pic)
        # Invoke sepia_tone function method with threshold 0.6
        pic.sepia_tone(0.6)
        # Save the image
        pic.save(filename ='sepia_tone2.jpg')

Ausgabe: