ppm
- noun
- Specialized
- The ppm image format is often used for storing pixel data in a straightforward manner.
Examples
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You can open a ppm file in many image editing programs without losing quality.
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When discussing capabilities in PPM software solutions, the following functions are key:
Blog text (18) -
After February, CO2 goes up by 0.02 ppm (but temperatures have dropped by one degree).
Blog text (9) -
Although the nitrate level in outgoing water can be adjusted, it is always kept below the allowable limit of 10 ppm (10 mg/L).
Academic text (1997) -
By 1992, nitrate concentration in water from the two on-site wells had climbed to about 9 ppm, and management at the Plover facility decided to install a nitrate removal system (NRS).
Academic text (1997) -
The ppm format is popular among graphic designers for its simplicity and ease of use.
Surface Forms
Etymology
Ppm comes from Portable Pixmap, where portable means 'easy to move' and pixmap is like a 'picture map' made of tiny dots of colour. Because it stores simple, not compressed pixel data, a ppm file is easy for programs to read and edit.
