General size of photos:
1, 1 inch: 1* 1.5 inch, 2.5cm*3.5cm
2, 2 inches: 1.5*2 inches, 3.5cm*5.3cm?
3. Large 1 inch: 3.3*4.8 inches. ?
4.5 inches /3r: 5 * 3.5 inches, 12.7cm * 8.9cm ...
5.6 inches /4r: 6 * 4 inches,15.2cm *10.2cm. ..
6.7 inches /5r: 7 * 5 inches,17.8cm *12.7cm ...
7, 8 inches: 6*8 inches, 15.2cm*20.3cm?
8. Small 12 inch: 8* 12 inch, 20.3cm*30.5cm?
9. 12 inch: 10* 12 inch, 25.4cm*30.5cm
Related content explanation:
When the picture size is in pixels, it is necessary to specify its fixed resolution in order to convert the picture size into the actual size in reality. For example, the resolution of the most commonly used pictures in web pages is 72, that is, 7265438 pixels per inch +0 inch equals 2.54 cm, then it can be concluded that each cm equals 28 pixels through conversion; Another example is a picture with the length of 15x 15cm, which is equal to the length of 420*420 pixels.
The display with the original resolution of 1280× 1024 looks best at the resolution of 1280× 1024. A pixel represented by several physical triplets can also display 800×600, but it may not be able to display 1600×65438+ completely. Pixels can be rectangular or square. There is a number called aspect ratio, which means there are many pixels.