What is never discussed is the fact that perhaps during the resurrection event the energy involved changed the carbon relationship of the cloth itself.
In the seminar I went to, a nuclear physicist gave an explanation on how the image could have happened; when Yeshua arose in the tomb the blast of light given off by Him was instantaneous and the energy was that of a nuclear bomb going off in pico seconds - short enough not to inflame the cloth but powerful enough to leave that image which of course would have been a negative image from the body. The image is on the top fibers of the cloth and not in the cloth as would be if it was somehow “painted” in - plus the image is even meaning that if a human hand painted it somehow just the hand movement would cause wavering brush strokes.