What are the common picture formats for photography, which is better for novices?
The picture format we are talking about here refers to the format of the computer stored pictures, such as BMP, GIF, PNG, etc. are common picture formats, our common picture formats in photography are: JPEG, TIFF, RAW and PSD.
Usually when we use the camera to take photos, the body will provide JPEG And RAW format shooting options, because many post software can not directly decode RAW files, so we will use the official software of the camera manufacturer to process the RAW files on the computer and convert them to TIFF format, while PSD is Adobe’s graphic design software Photoshop It can be stored in RGB or CMYK mode. It can also customize the number of colors and store them. It can also save the layers, channels, paths and other information of Photoshop.
JPEG format is currently the most popular image format on the Internet. The file can be compressed to the smallest format. Because of its small file size and fast download speed, its application is very wide. Various browsers support JPEG image format. However, it should be noted that the editability of JPEG files is poor. When you edit and re-save JPEG files, lossy compression will degrade the quality of the original image data, and this degradation is cumulative. The more editing times, The picture quality is also worse. In addition, the extension names of JPEG files that we usually see now are mostly JPG. This is because the main file name in the early Microsoft DOS system cannot exceed 8 characters, and the extension cannot exceed 3 characters. Because Mac does not limit the extension The length of the name, so the suffix of jpeg is used on the Mac. Although windos has no limitation on the number of naming characters, everyone is used to the JPG name, so these two names will coexist.
RAW Chinese interpretation is “raw materials” or “unprocessed things”, the RAW file contains the original picture file after the sensor is generated, enter the camera image processor All previous photo information. Usually RAW has 12-bit data. You can extract photo details from the highlights or dark areas of RAW images through software, and these details are basically impossible to find in JPEG or TIFF images. But the RAW format is not a unified format. For example, the RAW formats captured by Canon cameras are CR3 and CR2, Sony’s ARW, and Nikon’s NEF. In addition, RAW captured by new machines cannot be used by Photoshop for a long time. , Lightroom and other later software decoding, you need to wait for the official update to add support, so you can only use the special software provided by the manufacturer.
This is why most cameras now support RAW and JPEG formats At the same time shooting and recording, as long as your memory card capacity is sufficient, we also recommend that you choose to use both JPEG and RAW format photos. JPEG format is convenient for us to edit photos with common image processing software, while RAW format is used to solve fine processing Photo or correct photo errors.
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