1, white background: used for passports, visas, driver's licenses and ID cards. Second-generation ID card, driver's license and black-and-white certificate are equivalent;
2. Blue background: used for graduation certificate, work permit and resume? Hong Kong and Macao Pass? Passport, etc. (Blue values are: R:0 G: 19 1 B:243 or c: 67m: 2y: 0k: 0);
3. Red background: used for insurance, medical insurance, IC cards, temporary residence permits and wedding photos (red value: R:255 G:0 B:0 or C:0 M:99 Y: 100).
Making and processing ID photos, directly using' Certificate Star' is a professional ID photo making software, which can easily cut photos, change backgrounds, change clothes and adjust photo sizes.
Basic common sense
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. 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. For example, a 6-inch photo, the specification is 6×4 inches, which is 4R.
In addition, regardless of the number of pixels of a digital film, 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. X inches refers to the long side of the photo, for example, 5 inches means that the photo is 2.54×5 = 12.7cm long, 12 inches means 2.54× 12 = 30.5cm, and 8x 12 means that the long side is 2.54×12.
Reference to the above content: Baidu Encyclopedia-photos