Actually, most pictures are 3:2 (DSLR/full-frame camera sensors) or 4:3 (micro four-thirds and smartphone cameras). There are almost no 16:9 sensors out there, so 16:9 pictures are relatively rare, so if you come across a 16:9 picture, it's likely been cropped or stitched together.
Actually, most pictures are 3:2 (DSLR/full-frame camera sensors) or 4:3 (micro four-thirds and smartphone cameras). There are almost no 16:9 sensors out there, so 16:9 pictures are relatively rare, so if you come across a 16:9 picture, it's likely been cropped or stitched together.