If you cannot open the PGM file on your computer - there may be several reasons. If this does not happen, download and install the GIMP software and then manually associate the file with it. These files can be saved in two representations, either as plain (ASCII) text or binary. How to open PGM file After double-clicking on the unknown file icon, the system should open it in the default software that supports it. # List "l" will contain: P5, width, height, 255, pixel1, pixel2, pixel3. The PGM Raster image file format PGM files are known as portable graymap files and contain grayscale image information. # Technically, there could be comments that should be ignored It seems neither PIL, nor skimage want to read that, but are happy to read the corresponding P5 type which is identical except it is written in binary, rather than ASCII.ġ) You could use OpenCV to read it: import cv2Ģ) You could convert it to P5 with ImageMagick and then read the output.pgm file with skimage or PIL: magick input.pgm output.pgmģ) If adding OpenCV, or ImageMagick as a dependency is a real pain for you, it is possible to read a PGM image yourself: #!/usr/bin/env python3 The following list shows the system objects provided for the respective program types: BAS: FILE (externally described) and PGM C: no information is provided. Your file is P2 type PGM, which means it is in ASCII - you can view it in a normal text editor.
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