In the above analysis of the program, you can see that the application reports images such as processing or editing.
With the second image file there is no correction and is taken with a Canon digital camera. And the results returned with the evaluation of the program are high probability images from the original (Image has high probability of being original).
In addition JPEGsnoop returns a lot of information including: color mode, brightness, JPEG image quality settings, JPEG resolution settings, Huffman tables, EXIF metadata, Makernotes, RGB charts, .
Alternatively, you can enable a Huffman VLC full decoder, which will help those who are learning about JPEG compression and who are writing a JPEG decoder.
JPEGsnoop can open and decrypt files containing any embedded JPEG image files such as: .JPG, .THM, .AVI *, .DNG, .CRW, .CR2, .NEF, .ORF, .PEF , .MOV, .PDF.
JPEGsnoop is a very useful application to get all the details and analysis of any JPEG image you want.
You download the program for free use here.