spread()函数是Python Wand ImageMagick库中的内置函数,用于将每个像素替换为来自相邻像素值的统计结果。宽度和高度定义相邻像素的大小或孔径。
用法:
spread(radius, method)
参数:该函数接受上面提到的和下面定义的两个参数:
- radius:此参数存储可以从源位移的像素半径。
- method:此参数存储可用的颜色方法。一些可用的方法是‘undefined’, ‘average’,‘average9’, ‘average16’,‘background’, ‘bilinear’,‘blend’, ‘catrom’,‘integer’, ‘mesh’,‘nearest’, ‘spline’。
返回值:此函数返回Wand ImageMagick对象。
原始图片:
范例1:
范例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 spread:
# Invoke spread function with radius 15 and method as 'nearest'
spread.spread(15, 'nearest')
# Save the image
spread.save(filename ='spread1.jpg')
输出:
范例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 spread function with radius 10 and method as 'blend'
pic.spread(10, 'blend')
# Save the image
pic.save(filename ='spread2.jpg')
输出:
相关用法
- Node.js GM spread()用法及代码示例
- Python Pgmagick spread()用法及代码示例
- Python Wand function()用法及代码示例
- Python Wand gaussian_blur()用法及代码示例
- Python Wand transform()用法及代码示例
- Python Wand crop()用法及代码示例
- Python Wand rotational_blur()用法及代码示例
- Python Wand Image()用法及代码示例
- Python Wand shade()用法及代码示例
- Python Wand sharpen()用法及代码示例
- Python Wand adaptive_sharpen()用法及代码示例
- Python Wand noise()用法及代码示例
- Python Wand blue_shift()用法及代码示例
注:本文由纯净天空筛选整理自sarthak_ishu11大神的英文原创作品 Wand spread() function – Python。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。