The pixel is 626×4 13. The size of a two-inch photo is 3.5cm×5.3cm, and that of a two-inch photo is 3.5cm×4.5cm. Usually, a few-inch photo refers to the length of the long side of the photo. Two-inch photos are mainly used for various diplomas, resumes and so on. The requirement of this ID photo is that you can see the outline of a person's ear and the place equivalent to a man's Adam's apple without wearing a hat.

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Usually, the specifications of photos are expressed in inches, which is different from the diagonal length of products such as monitors. "A few inches" in the photo refers to the length of inches on the long side of the photo. For example, a 6-inch photo is a 6×4-inch photo. There is also a commonly used method to indicate the size of a photo in the world, which is to take the integer value of the short side of the photo and add the letter R to indicate it.

In addition, regardless of the number of pixels in a digital film, we only look at the number of pixels on the long side. 1200 is 5 inches, 1400 is 6 inches, 1700 is 7 inches, and so on ... 1 inch (in inches) =2.54cm When we say x inches, we mean the long side of the photo. For example, 5 inches means the photo is 2.54x5= 12.7cm, 12 inches means 2.54x 12=30.5cm, and 8x 12 means the long side is 2.54x12 = 30.5cm. ..

Reference to the above content: Baidu Encyclopedia-photos