Converting all images in a folder to .webp using python script

Question

I've been working on images for a website and find out that .webp format is much more compact than .jpeg or .png find more on Docs .

Now I have a folder with almost 25 images & I want to convert all into .webp format. Can anyone suggest me how to convert all by using just a python script without using online tools.

Answer 1

Well first of all you have to download the cwebp compressor tool according to your machine(Windows|Linux) from here .

Now after extracting the folder in C:\\Program Files\\ you have to set path to cwebp.exe , below is my path Path:: C:\\Program Files\\libwebp\\bin

Open cmd to check if you have done right till now.

• cmd> cwebp -version

• cmd> python --version

Now it's super easy just run the below script and you have your desired output or you can download my repo on github from here

# --cwebp_compressor.py--

# cmd> python cwebp_compressor.py folder-name 80

import sys
from subprocess import call
from glob import glob

#folder-name
path = sys.argv[1]
#quality of produced .webp images [0-100]
quality = sys.argv[2]

if int(quality) < 0 or int(quality) > 100:
    print("image quality out of range[0-100] ;/:/")
    sys.exit(0)

img_list = []
for img_name in glob(path+'/*'):
    # one can use more image types(bmp,tiff,gif)
    if img_name.endswith(".jpg") or img_name.endswith(".png") or img_name.endswith(".jpeg"):
        # extract images name(image_name.[jpg|png]) from the full path
        img_list.append(img_name.split('\\')[-1])


# print(img_list)   # for debug
for img_name in img_list:
    # though the chances are very less but be very careful when modifying the below code
    cmd='cwebp \"'+path+'/'+img_name+'\" -q '+quality+' -o \"'+path+'/'+(img_name.split('.')[0])+'.webp\"'
    # running the above command
    call(cmd, shell=False)  
    # print(cmd)    # for debug