BMP (bitmap image file) files are lossless & uncompressed. They retain as much detail as possible, that's why they are larger (filesize). It is a raster graphics image file format.
BMP is a raster image file format that has been around since the early days of computer graphics. It was introduced in the late 1980s and quickly became one of the most popular image file formats, especially for graphics and photographs. The BMP file format is simple and straightforward, making it easy to use and manipulate. It stores images as a grid of pixels, with each pixel representing a single color value. The file size of a BMP image depends on the number of pixels in the image, with larger images requiring more storage space. One of the main advantages of BMP files is their compatibility with a wide range of operating systems and software. Because they are such an old format, BMP files can be opened and edited on almost any computer, regardless of its operating system or software capabilities. This makes them a popular choice for sharing images between different devices and platforms. However, BMP files also have some limitations. They are not compressed, which means that they can be quite large in size, especially for high-resolution images.
