Convert DCR to PGM

The DCR (Digital Camera Raw) file extension is used by Kodak digital cameras to store uncompressed, lossless image data exactly as captured by the camera's sensor. This format retains more detail and allows for greater post-processing flexibility compared to compressed formats like JPEG. DCR files contain metadata such as camera settings and image dimensions. Historically, Kodak introduced this format to provide photographers with high-quality images for editing and archival purposes.

The Portable Graymap (PGM) file extension, originating in the late 1980s as part of the Netpbm project, stands for "Portable Gray Map". It serves as a simple, versatile format for grayscale images, enabling easy reading and writing by various programs. Due to its straightforward structure and plain text encoding, it's often used in academic and research settings where ease of parsing and accessibility are crucial. PGM files store grayscale images in a compact, efficient manner, making them an essential tool for image processing tasks.