What is the appropriate photo size setting for digital cameras?

Digital camera photo size setting:? 640×480, 1024×768, 1600 × 1200, 2048× 1536 are all acceptable.

The photo size setting of digital camera mainly depends on whether the pixel meets the requirements, and the pixel is the most important index to measure the digital camera. Pixel refers to the resolution of a digital camera.

At present, mainstream SLR digital cameras have more than 20 million pixels, but/kloc-0.0 million pixels is enough for ordinary photography and home use, because the resolution of the display we use is limited, generally from 1366×768 to 1920× 1200. If a picture with too many pixels is displayed at this resolution, the picture will be compressed to the size of the current screen.

Extended data:

Maximum pixel:

The English name is Maximum Pixels, and the so-called maximum pixel is obtained by interpolation. Interpolation operation through the DSP chip inside the digital camera, when the image needs to be enlarged, the pixels that need to be added after the image is enlarged are added by using the nearest neighbor interpolation, linear interpolation and other operation methods. The image quality obtained after interpolation operation can't be compared with the real photosensitive image.

The largest pixel also refers directly to the pixel of CCD/CMOS photosensitive device. In order to increase sales, some businesses only promote the maximum pixel of digital cameras. When setting the picture resolution of digital cameras, they do take pictures with the highest pixel resolution. However, users should be aware that this is the value obtained through internal calculation of digital camera, and the loss of image quality will be very obvious when printing pictures.

Effective pixels:

Effective number of pixels is called effective number of pixels in English. Different from the largest pixel, the effective pixel number refers to the pixel value that really participates in photosensitive imaging. The value of the highest pixel is the real pixel of the photosensitive device, and this data usually includes the non-imaging part of the photosensitive device, while the effective pixel is the value converted under the zoom magnification of the lens.

Digital pictures are generally stored in pixels, and each pixel is the smallest unit in digital pictures. The larger the pixel, the larger the area of the picture. Therefore, under the condition of constant pixel area, the digital camera can get the largest picture pixel, which is the effective pixel.

Baidu encyclopedia-digital camera pixel