For those who use imgur
Here is the list of all the modifiers for dimensions (not all are always available) :
s = Small Square (90×90)
b = Big Square (160×160)
t = Small Thumbnail (160×160)
m = Medium Thumbnail (320×320)
l = Large Thumbnail (640×640)
h = Huge Thumbnail (1024×1024)
Add the letter that is equivalent to the size you want to potray at the end of the URL string.
i.e.
If the URL ends in abcde and you want the image size to be 1024×1024
abcde becomes
abcdeh
Source:
https://superuser.com/questions/1238...-a-imgur-image