ImageMagick | Python
pip install wand
I/O
- Reading blob object in Python using wand library
with open("random_image.png", "rb") as f:
image_blob = f.read()
with Image(blob = image_blob) as img:
print("width = ", img.width)
print("height = ", img.height)
- How to convert wand image object to open cv image (numpy array)
from wand.image import Image as WandImage
from wand.color import Color
import numpy
import cv2
RESOLUTION=72
source_file='rose:'
img_buffer=None
with WandImage(filename=source_file, resolution=(RESOLUTION,RESOLUTION)) as img:
img.background_color = Color('white')
img.format = 'tif'
img.alpha_channel = False
# Fill image buffer with numpy array from blob
img_buffer=numpy.asarray(bytearray(img.make_blob()), dtype=numpy.uint8)
if img_buffer is not None:
retval = cv2.imdecode(img_buffer, cv2.IMREAD_UNCHANGED)
別物
pip install magickwand