BLOB stands for Binary Large OBject. A blob is a data type that can store binary data. This is different than most other data types used in databases, such as integers, floating point numbers, characters, and strings, which store letters and numbers. BLOB is a large complex collection of binary data which is stored in Database. Basically BLOB is used to store media files like images, video and audio files. Due to its ability to store multimedia files it takes a huge disk space. Also length of BLOB may go upto 2, 147, 483, 647 characters. BLOB provides fast multimedia transfer.
To get blob file from image :
with open('image_path') as f:
image_blob = f.read()
To read image from blob in Wand :
with Image(blob=image_binary) as img:
\\other code
Input Image :
Code :
Python3
# import required librariesfrom __future__ import print_function# import Image from wand.image modulefrom wand.image import Image# open image using file handlingwith open('koala.jpeg') as f: # get blob from image file image_blob = f.read()# read image using wand from blob filewith Image(blob = image_binary) as img: # get height of image print('height =', img.height) # get width of image print('width =', img.width) |
Output :
height = 300 width = 400
