Pixellate

Applies a pixellation effect to an image. You can set the desired block size in pixels. If the image is resized, filter is applied after resizing.

pixellate=X | f=pixellate:X | pixelate=X | f=pixelate:X

Original image

/docs/earth.jpg?w=400

Pixellated with 8px block

/docs/earth.jpg?w=400&pixellate=8