How to take a photo with a white background?

There is no need to change the background, it may be that the indoor brightness is dark.

The ID photo requires a bareheaded (bareheaded) front photo. In the photo, you should normally see the outline of people's ears and the place equivalent to Adam's apple. The background color is mostly red, blue and white, and the size is mostly one inch or two inches.

White background: used for passport, visa, driver's license, ID card, second-generation ID card, driver's license, black and white certificate, medical insurance card, Hong Kong and Macao pass, etc.

Blue background: used for graduation certificate, work permit, resume, etc. (blue values are: R:0 G: 19 1 B:243 or C:67 M:2 Y:0 K:0).

Red background: used for insurance, medical insurance, IC cards, temporary residence permits and wedding photos (red values are: R:255 G:0 B:0 or C:0 M:99 Y: 100 K:0).

Extended data:

Photo size:

1 inch = 2.54cm.

Small 1 inch ID photo (ID photo) 2.2*3.2cm

1 inch ID photo 2.5*3.5cm

Large 1 inch ID photo (passport) 3.3*4.8cm

Small 2 inches 3.5*4.5cm (visa specifications of most countries in Southeast Asia, except Japan and South Korea)

2-inch ID photo 3.5*4.9cm

5 inch 5x3.5 12.7*8.9cm

6 inch 6x415.2 *10.2cm.

7 inches 7x517.8 *12.7cm.

8 inch 8x620.3 *15.2cm.

10 inch 10x 8 25.4 * 20.3 cm

12 inch12x1030.5 * 20.3cm.

15 inch15x1038.1* 25.4cm.

16X 12 general 135 film enlargement size.

The limit size is 20X 16 135 negative number.

24X20 studio enlarges the maximum size.

The corresponding size of ordinary ID photo.

1 inch 25mm× 35mm

2 inches 35 mm× 49 mm

3 inches 54 mm× 82 mm

Wedding photo: 40mm×60mm

Hong Kong and Macao Pass 33mm×48mm

American visa 50mm×50mm

Japanese visa 45mm×45mm

Two inches 35 mm ×45 mm

Passport 33mm× 48mm

Graduation photo is 33mm×48mm.

ID card 22mm×32mm The size of the second-generation resident ID card in Chinese mainland was changed to 26mm×32mm (resolution 350dpi)

Driver's license 2 1mm×26mm

Car photo 60mm×9 1mm

Comparison Table of Maximum Size of Digital Camera and Printable Photo

5 million pixels effective 49 15200, pixel 2560X 1920. The size of the developable photo is 17X 13, and the diagonal is 2 1 inch.

4 million pixels effective 387 1488, pixel 2272X 1704. The size of the developable photo is 15X 1 1, and the diagonal is 19 inch.

3 million pixels effective 3 145728, pixel 2048X 1536. The size of the developable photo is 14X 10, and the diagonal is 17 inches.

2 million pixels are valid at 1920000, and the pixel is 1600X 1200. The size of the developable photo is 1 1X8, and the diagonal is 13 inch.

1.3 million pixels effective 1228800, pixel 1280X960. The developable photo size is 9X6, diagonal 1 1 inch.

800,000 pixels, effective 786,432, pixel 1024X768. Developable photo size 7X5, diagonal 9 inches

500,000 pixels, 480,000 pixels, 800X600 pixels. The developable photo size is 5X4, and the diagonal is 7 inches.

300,000 pixels are effective, 307,200 pixels are 640X480. Developable photo size 4X3, diagonal 5 inches

As can be seen from the above table:

A 5-inch photo (3X5) with 800X600 resolution is enough.

6-inch photo (4X6), resolution 1024X768.

7-inch photo (5X7), resolution 1024X768.

8-inch photo (6X9), resolution 1280X960.

Baidu Encyclopedia-ID photo