solarize()函数是Python Wand ImageMagick库中的内置函数,用于否定阈值级别以上的所有像素。
用法:
solarize(threshold, channel)
参数:该函数接受上面提到的和下面定义的两个参数:
- threshold:此参数存储从0到可用量子范围的阈值水平。
- channel:这是一个可选参数,用于存储availbale方法。
返回值:此函数返回Wand ImageMagick对象。
原始图片:
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 solarize:
# Invoke solarize function with threshold value 35
solarize.solarize(35)
# Save the image
solarize.save(filename ='solarize1.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 solarize function method with threshold value 60 and channel as 'green'
pic.solarize(60, 'green')
# Save the image
pic.save(filename ='solarize2.jpg')
输出:
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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 solarize() 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。