What is the .PPM File Extension?
.PPM File Extension Description:
The PPM (Portable Pixel Map) file extension is one of the three file formats that specify rules for exchanging graphic files and provide basic functionality for converting pixmap, graymap, or bitmap files between different platforms. The other two are the PGM (Portable Graymap) and PBM (Portable Bitmap) file extensions. These file extensions are collectively known as the PNM for Portable Anymap.
The PPM file extension format is the colored image file format's least common denominator. It contains a lot of information but allows very little information about the image besides its basic color, meaning it has to be coupled with other files of the same format to get any use out of it. However, the PPM file extension is very simple to write and process and very useful if used as an intermediary file extension.
A file with the .ppm file extension consists of a sequence of one or more PPM images and in between, before or after there exists no data, delimiters, or padding. Each file with the .ppm file extension consists of the magic number for identifying the file type which is the two characters "P6", the whitespace such as blanks, tabs, CRs, or LFs, the width that is has ASCII characters formatted in decimal, the whitespace, and the height that is again ASCII decimal.
The maximum color value of each file with the .ppm file extension is less than 65536 and more than zero with a single whitespace character, a precise raster of assigned height rows arranged in order from the top to the bottom. Every row actually consists of assigned width pixels, that are arranged in chronological order from the left to the right; each pixel is featured as a sort-of triplet of blue, red, and green samples; every sample is represented purely in binary by one or two bytes; a row of an image is horizontal; a column is vertical; and the pixels in the image are square and contiguous.
The PPM file extension format has another version, which is fairly plain. It has only one image in the file, the magic number is "P3", and every sample in the assigned raster is then characterized as an SCII decimal number with arbitrary size, with whitespace prior and subsequent to it, no particular separation of one pixel from another, and no line is longer than 70 characters.Author: Jef Poskanzer
Author URL: N/A
Related Applications: PGM, PBM, PNM
Common Path: N/A
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Do you have errors with .PPM files?
The Frequent Reason for .PPM files Errors to Occur:
Upon experiencing errors with .PPM files you are potential experiencing a critical Windows registry error - the error might be the result of damage to your program registry and action is needed to correct it immediately to prevent further damage to your program registry. During the time the errors persist your PC remains at risk for potential blue screen errors, system failure and fatal crashes.
Symptoms of .PPM files Errors:
Common symptoms from .PPM files errors include reduced pc performance, extended software load speed, failure loading documents, long suspensions in program routines, programs closes without showing an indication of error, input freezes and software crash.
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