Enhance

Image can be enhanced in few ways, it can be denoised and it can be deblurred.
Enhancement
Description
Link
denoise
Reduces the image noise
deblur
Reduces out of focus blur
clean
Cleans the image without changing resolution
face_enhance
light
color
white_balance
Let's check some examples.

Noise removal

{
"enhancements": ["denoise"]
}

Out of focus blur reduction

We can also make sharper blurry image like this:
{
"enhancements": ["deblur"]
}
Those two options can be specified together.
Let's check the results on that image:
{
"enhancements": ["deblur", "denoise"]
}

Cleaning the image

Image can also be "cleaned" from artifacts and previously poorly upscaled image.
"enhancements": ["clean"]
Resolution of the image remains the same but image should be in better quality.