Here is the original blurry picture.
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Here is my corrected picture.
It is not easy to PS a blurry picture and survive the transition to a corrected picture. I have not posted some J-20 pictures because the corrected pictures had artifacts. The colors and/or the pixels become skewed after correction. There are no artifacts in this corrected picture. Not absolute proof the picture is not PS. However, there is no evidence that it is "doctored." That is the reason I said, "Time will tell."
There are sophisticated analysis programs that can greatly enhance the confidence of whether a picture is PS or not. For example, oftentimes a PS object's border will not match. Also, the lighting analysis will show that the light source for a PS object and the rest of the picture is different. Anyway, I will need a year to master those tools. I could theoretically do a crash program and give you my opinion in one week. However, I don't care about this issue that much.