I have imported wand using the following code
from wand.image import Image as WandImage
from wand.color import Color
with WandImage(filename=source_file, resolution=(RESOLUTION,RESOLUTION)) as img:
img.background_color = Color('white')
img.format = 'tif'
img.alpha_channel = False
How can i convert img object to open cv (cv2) image object in python?
You would simply write to a byte-array buffer, and pass to cv2.imdecode
.
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)
来源:https://stackoverflow.com/questions/37015966/how-to-convert-wand-image-object-to-open-cv-image-numpy-array