The Wand is an Imagick library for python. It supports the functionalities of Imagick API in Python 2.6, 2.7, 3.3+, and PyPy.This library not only helps in processing the images but also provides valuable functionalities for Machine Learning codes using NumPy.
Installation:
By Pip:
$ pip install Wand
As the wand is an Imagick API, so we require Imagick dependencies.
Imagick’s Installation:
- For Ubuntu/Debian:
$ sudo apt-get install libmagickwand-dev
- For Mac (By Brew Installer)
$ brew install imagemagick
Installation of MacPorts
$ sudo port install imagemagick
Note: If Python is not installed using MacPorts, we need to export MAGICK_HOME.
$ export MAGICK_HOME=/opt/local
Example 1: Reading an Image:
Input Image: geeksforgeeks.png# Import library from the wand
from
wand.image
import
Image
# Import the image
with Image(filename
=
'geeksforgeeks.png'
) as pic:
# Read the image to fetch actual dimensions
print
(
'Width of the image:'
, pic.width)
print
(
'Height of the image:'
, pic.height)
Output:
('Width of the image:', 667L) ('Height of the image:', 184L)
Example 2: Blur an Image:
# Import library from the wand
from
wand.image
import
Image
# Import the image
with Image(filename
=
"geeksforgeeks.png"
) as pic:
# Invoke blur function with radius 0 and sigma 3
pic.blur(radius
=
0
, sigma
=
3
)
# save the processed iamge
pic.save(filename
=
"blur1.png"
)
Output:
Example 3: Transfor the image
# Import library from the wand
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 flip:
# Invoke flip function
flip.flip()
# Save the image
flip.save(filename
=
'flip-geeksforgeeks.jpg'
)
Output:
Example 4: Drawing:
# 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
=
2
# Set the fill color to 'White (# FFFFFF)'
draw.fill_color
=
Color(
'white'
)
# Invoke Circle function with center
# at 200, 200 and radius 100
draw.circle((
200
,
200
),
# Center point
(
100
,
100
))
# Perimeter point
with Image(width
=
400
, height
=
400
,
background
=
Color(
'lightgreen'
)) as pic:
draw(pic)
pic.save(filename
=
'circle1.jpg'
)
Output:
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