(Canon Raw Image File)
cr2 文件包含来自佳能相机的未压缩和未触及的原始图像数据。这些原始文件有时也称为数字底片。原始文件的目的是从相机的传感器获取最大的信息, 以便以后调整图像 (例如白色平衡和颜色分级)。
CR2 file contain uncompressed and untouched raw image data from Canon cameras. These raw files are also sometimes called digital negatives. The purpose of raw files is to get maximum information from the sensor of the camera to give possibilites to adjust the image later (e.g. white balancing and color grading).