focus element

The focus element is present for grayscale images with acceptable dimension and compressed data size test results. It contains the following parts:

raw

Raw contains a floating point measure of the image focus.

score

Score contains a floating point number between 0 and 10 (inclusive). This value is the Image Compliance estimate of the likelihood the image has sufficient focus. A 10 indicates the image passes the focus test and is good. A 0 indicates the image fails this test and has poor focus. Values in between 0 and 10 are a measure of the image focus.