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PPM to WBMP

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File extension.ppm
CategoryImage File
DescriptionThe portable pixmap format (PPM) is an image format designed to be easily exchanged between platforms which is used by Netpbm - an open-source package of graphics programs and a programming library, used mainly in the Unix world. The format is a lowest common denominator color image file format and is highly inefficient, containing a lot of information the human eye can’t even discern. The precursor to the PPM format was the PBM format which was invented by Jef Poskanzer in the 1980s as a format that allowed monochrome bitmaps to be transmitted within an email message as plain ASCII text, allowing it to survive any changes in text formatting. By the end of 1988, Poskanzer had developed the PGM and PPM formats along with their associated tools and added them to Pbmplus. The final release of Pbmplus was December 10, 1991.
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Technical DetailsA PPM file consists of a sequence of one or more PPM images. There are no data, delimiters, or padding before, after, or between images. Each PPM image consists of the following:
  1. A magic number for identifying the file type. A ppm image's magic number is the two characters P6.
  2. Whitespace (blanks, TABs, CRs, LFs).
  3. A width, formatted as ASCII characters in decimal.
  4. Whitespace.
  5. A height, again in ASCII decimal
  6. 6. Whitespace.
  7. The maximum color value (Maxval), again in ASCII decimal. Must be less than 65536 and more than zero.
  8. A single whitespace character (usually a newline).
  9. A raster of Height rows, in order from top to bottom. Each row consists of Width pixels, in order from left to right. Each pixel is a triplet of red, green, and blue samples, in that order. Each sample is represented in pure binary by either 1 or 2 bytes. If the Maxval is less than 256, it is 1 byte. Otherwise, it is 2 bytes. The most significant byte is first.
There is actually another version of the PPM format that is fairly rare: plain PPM format.
Associated programs Adobe Photoshop
Corel Draw
GIMP
Netpbm
Developed by Jef Poskanzer
MIME type  image/x-ppm
image/x‑portable‑pixmap
Useful links NetPBM homepage
What is the NetPBM format ?
Convert PPM file
 

Convert PPM file

Using Zamzar it is possible to convert PPM files to a variety of other formats:

ppm to ai (Adobe Illustrator Artwork)
ppm to bmp (Windows bitmap)
ppm to eps (Encapsulated PostScript)
ppm to gif (Compuserve graphics interchange)
ppm to jpg (JPEG compliant image)
ppm to pcx (Paintbrush Bitmap Image)
ppm to pdf (Portable Document Format)
ppm to png (Portable Network Graphic)
ppm to tga (Truevision Targa Graphic)
ppm to tiff (Tagged image file format)
ppm to wbmp (Wireless Bitmap File Format)
ppm to webp (Lossily compressed image file)

PPM to WBMP - Convert file now

Convert PPM to WBMP

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File extension.wbmp
CategoryImage File
DescriptionThe WBMP file format is a now obsolete file type that was used by early mobile phones to exchange and store images. WBMP files are black and white only. The WBMP format was succeeded by the PNG format for use by WAP mobile phones as this provided colour support. A requirement for a WAP specific image format has been rendered increasingly unnecessary due to the advent of smartphones and their support of a range of image formats.
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Technical DetailsA .WBMP file is saved in bit format. This means that each pixel represents 1 bit. Each pixel can be black or white. Each WBMP file is comprised of a type field, a header field, a width value, a height value and the data for the image itself.
Associated programs Adobe Photoshop
Microsoft Paint
Windows Picture and Fax Viewer
Developed by WAP Forum
MIME type  image/vnd.wap.wbmp
Useful links More Information on WBMP
WAP Forum Site
Convert WBMP file