916. Is it possible — using TTG’s Allowable Changes — to convert a doctored photo into an undoctored photo that will be eligible to qualify as TTG?

It usually is not possible to “undoctor” a doctored photograph, because the manipulations required to “undoctor” it are not on the Allowables list and thus would disqualify the image from P2 the Trust Test.

But sometimes there are options:

• If the unaltered original was saved, the photographer can work with that.

The safest thing for any TTG photographer to do is to save a completely unaltered copy of the original photo — good practice for any photographer who might later want to prove how little they changed a photograph.

• If the photo was taken on a smartphone, the photo can often be Reverted on that phone (though not reliably on another device).

A TTG button would be helpful.

• If the disqualifying factors are “light”-related, they can usually be sufficiently corrected or the image can be converted to monochrome (see #810).