Python Wand mean_shift()用法及代碼示例

mean_shift()函數是Python Wand ImageMagick庫中的內置函數，該函數用於通過比較顏色距離內的相鄰像素並替換為平均值來重新計算像素值。

用法：

mean_shift(width, height, color_distance)

參數：該函數接受上麵提到的和下麵定義的兩個參數：

width:此參數用於存儲鄰居窗口的寬度(以像素為單位)。
height:此參數用於存儲鄰域窗口的高度(以像素為單位)。
color_distance:此參數用於存儲此顏色距離內的像素值。

返回值：此函數返回Wand ImageMagick對象。

原始圖片：

範例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 mean_shift:
        # Invoke mean_shift function with width as 30 and height as 10  
        # and color_distance as 0.2 
        mean_shift.mean_shift(30, 10, 0.2) 
        # Save the image 
        mean_shift.save(filename ='mean_shift1.jpg')

輸出：

範例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 circlw 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 mean_shift function with width as 20, height as 30 and color_distance as 0.6 
        pic.mean_shift(20, 30, 0.6) 
        # Save the image  
        pic.save(filename ='mean_shift2.jpg')

輸出：

相關用法

注：本文由純淨天空篩選整理自sarthak_ishu11大神的英文原創作品 Wand mean_shift() function – Python。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。