CR2 is a graphic file format developed by the manufacturer of camcorders and cameras Canon. This means that all images made by the equipment of this manufacturer are saved by default in CR2 format (short name from Canon Raw Image File). One of the most attractive properties of images of the specified format is their high quality, even if the file is being edited (color balance, contrast, brightness change). Data for the CR2 format image is obtained directly from the matrix. Among the main drawbacks of the format are the large file size, as well as poor compatibility with other software products.
DDS is a graphic format, bitmap image. DDS stands for Abbreviation for the DirectDraw Surface. This format, developed by Microsoft, is usually used to store textures for 3D environments (for example, in computer games or 3D models, including new-generation game consoles). The format is designed specifically for use in the Microsoft DirectX environment, however, in OpenGL, the use of DDS files is also possible. Even when compressed, the texture quality is preserved in the DDS files. Compression of files of this format is possible using DirectX Texture Compression technology.