Resizing options
http://media.example.com/media/image-200x300.jpg
will create a JPEG thumbnail preserving aspect ratio, with a maximum width of 200 pixels and a maximum height of 300 pixels.
IF the original image is a GIF or WEBP with animation, the JPEG will yield the first frame of that animation.
When resizing a transparent GIF the animation might not have the expected result, instead fetch the original image.
http://media.example.com/media/image-200x300-crop.jpg
Exactly 200x300, cropped as necessary, with crop point at centre and middle.
http://media.example.com/media/image-200x300-crop=lm.jpg
The image format to return is determined by the given extension.
jpg, png, gif, webp, and jp2 are supported.
As for crop, but with a custom crop point. Accepted values are:
For the first character:
- 
l: Left
- 
c: Center
- 
r: Right
For the second character:
- 
t: Top
- 
m: Middle
- 
b: Bottomhttp://media-server.com/media/image-200x300-fill=255,124,123,1.jpg 
Resize the image proportionally, and pastes it onto a canvas 200x300 pixels,
with a background rgba(255,124,123,1).
Resizer will also accept three numbers for a RGB colour.
http://media.example.com/media/image-filter=greyscale.jpg
Providing filter=greyscale will convert the image to black and white. It can combined with the other parameters but must always be placed last.
