resizing Images after downloaded with PIL

README.md

@@ -14,6 +14,8 @@
 * [jinja2](https://jinja.palletsprojects.com/en/2.11.x/) Python library
     * Install:
         * `pip3 install jinja2`
+* [Pillow](https://pillow.readthedocs.io/en/stable/) Python library for image processing
+    * `pip3 install Pillow`
 * [pandoc](https://pandoc.org/)
     * Install:
         * Debian/Ubuntu: `sudo apt install pandoc`

download_imgs.py

@@ -2,6 +2,7 @@ import os
 from mwclient import Site
 from pprint import pprint
 from functions import update_json
+from PIL import Image
 
 site = Site(host='hub.xpub.nl/sandbox', path='/itchwiki/')
 wd = os.path.dirname(os.path.abspath(__file__)) # working directory
@@ -11,6 +12,7 @@ os.makedirs(imgdir, exist_ok=True) # create images/ dir
 
 imgsjson_fn = os.path.join(wd, 'images.json')
 
+thumbnail_size = 1200 # largest px dimension of img thumbnails
 
 
 with open(os.path.join(wd, 'login.txt'), 'r') as login:  # read login user & pwd
@@ -43,4 +45,18 @@ for img in site.allimages():
         print('DOWNLOADING:', img_fn)
         with open(img_fn, 'wb') as img_file:
             img.download(destination=img_file)
+
+        # resize image
+        pilimg = Image.open(img_fn)
+        pilimg_dim = list(pilimg._size)
+        pilimg_dim_sort = sorted(pilimg_dim) # smallest dimension 1st
+        img_ratio = pilimg_dim_sort[0] / pilimg_dim_sort[1]
+        if pilimg_dim == pilimg_dim_sort:
+            # if height was largest
+            new_dim = [(thumbnail_size * img_ratio), thumbnail_size]
+        else:
+            # if with was largest
+            new_dim = [thumbnail_size,(thumbnail_size * img_ratio)]
+        pilimg.thumbnail(new_dim)
+        pilimg.save(img_fn)
     print('\n')