If the size of the img element is less than the natural size of the image, the result is cropped

[SimonChris]

When applying effects to an img element, if the size of the element is less than the natural size of the image, the result is cropped.

[aurbano]

Hmm, I believe it's getting the size via JS from the element, which probably reports the current size, not the image's true size.

A quick google search says that we should use img.naturalWidth and img.naturalHeight, could use a PR if you have the time to go over this :)

[SimonChris]

I did actually try to use the naturalWidth/Height solution, but I couldn't make it work... I managed to make a workaround where I render an invisible picture with natural size, apply the effect to that, and send the result to the smaller picture. I probably won't have time to look more at this any time soon.