Tools for manipulating graphics files in netpbm supported formats
http://netpbm.sourceforge.net/
The netpbm-progs package contains a group of scripts for manipulating the
graphics files in formats which are supported by the netpbm libraries. For
example, netpbm-progs includes the rasttopnm script, which will convert a
Sun rasterfile into a portable anymap. Netpbm-progs contains many other
scripts for converting from one graphics file format to another.
If you need to use these conversion scripts, you should install
netpbm-progs. You'll also need to install the netpbm package.
Version: 11.02.00
General Commands | |
| 411toppm | convert Sony Mavica .411 image to PPM |
| anytopnm | convert an arbitrary type of image file to PBM, PGM, or PPM |
| asciitopgm | convert ASCII graphics into a PGM |
| atktopbm | convert Andrew Toolkit raster object to PBM |
| avstopam | convert an AVS X image to a Netpbm image |
| bioradtopgm | convert a Biorad confocal file into a PGM image |
| bmptopnm | convert a BMP file into a PBM, PGM, or PNM image |
| bmptoppm | replaced by bmptopnm |
| brushtopbm | convert a doodle brush file into a PBM image |
| cameratopam | convert raw camera image to PAM |
| cistopbm | convert Compuserve RLE image to PBM |
| cmuwmtopbm | convert a CMU window manager bitmap into a PBM image |
| ddbugtopbm | convert Diddle or DiddleBug sketches to PBM files |
| escp2topbm | convert an ESC/P2 printer file to a PBM image |
| eyuvtoppm | convert a Berkeley YUV file to a PPM file |
| faxformat | |
| fiascotopnm | Convert compressed FIASCO image to PGM, or PPM |
| fitstopnm | convert a FITS file into a PNM image |
| fstopgm | convert a Usenix FaceSaver(tm) file into a PGM image |
| g3topbm | convert a Group 3 fax file into a PBM image |
| gemtopbm | replaced by gemtopnm |
| gemtopnm | convert a GEM .img file into a PNM image |
| giftopnm | convert a GIF file into a PNM image |
| gouldtoppm | convert Gould scanner file into a PPM image |
| hdifftopam | convert horizontal difference image to original PAM image |
| hipstopgm | convert a HIPS file into a PGM image |
| icontopbm | replaced by sunicontopnm |
| ilbmtoppm | convert an ILBM file into a PPM image |
| imgtoppm | convert an Img-whatnot file into a PPM image |
| infotopam | convert Amiga .info icons to PAM |
| jbigtopnm | JBIG to PNM image file converter |
| jpeg2ktopam | convert JPEG-2000 code stream to PAM/PNM |
| jpegtopnm | convert JPEG/JFIF file to PPM or PGM image |
| leaftoppm | convert Interleaf image format to PPM image |
| lispmtopgm | convert a Lisp Machine bitmap file to PGM |
| macptopbm | convert a MacPaint file into a PBM image |
| manweb | manweb displays reference documentation via quick shell commands. It is a replacement for the well-known man. |
| mdatopbm | convert a Microdesign .mda or .mdp file into a PBM image |
| mgrtopbm | convert a MGR bitmap into a PBM image |
| mrf | monochrome recursive format (compressed bitmaps) |
| mrftopbm | convert an MRF image to PBM format |
| mtvtoppm | convert output from an MTV or PRT ray tracer into a PPM |
| neotoppm | convert an Atari Neochrome .neo into a PPM image |
| palmtopnm | convert a Palm Bitmap to a PNM image |
| pamaddnoise | add noise to a Netpbm image |
| pamaltsat | increase or decrease the saturation of an image using one of several alternative methods. |
| pamarith | perform arithmetic on two Netpbm images |
| pambackground | create a mask of the background area of an image |
| pambayer | interpret Bayer patterns |
| pambrighten | change a PPM image's Saturation and Value |
| pamcat | concatenate Netpbm images |
| pamchannel | extract channels from a PAM image |
| pamcomp | composite (overlay) two Netpbm images together |
| pamcrater | create cratered terrain by fractal forgery |
| pamcut | cut a rectangle out of a PAM, PBM, PGM, or PPM image |
| pamdeinterlace | remove every other row from a PAM/PNM image |
| pamdepth | change the depth (color resolution) in a Netpbm image |
| pamdice | slice a Netpbm image into many horizontally and/or vertically |
| pamditherbw | dither grayscale image to black and white |
| pamedge | edge-detect an image |
| pamendian | reverse endianness of a Netpbm image |
| pamenlarge | Enlarge a Netpbm image N times by duplicating pixels |
| pamexec | Execute a shell command on each image in a Netpbm image stream |
| pamfile | describe a Netpbm (PAM or PNM) file |
| pamfind | Print the locations of all tuples of a certain value in an image |
| pamfix | repair a Netpbm image with various corruptions |
| pamfixtrunc | replaced by pamfix |
| pamflip | flip or rotate a PAM or PNM image |
| pamfunc | Apply a simple monadic arithmetic function to a Netpbm image |
| pamgauss | create a two-dimensional Gaussian function as a PAM image |
| pamgetcolor | display the average colors from specified regions in an image. |
| pamgradient | create a four-corner gradient PAM image |
| pamhomography | |
| pamhue | change a Netpbm image's hues |
| pamlevels | effect a 'levels' transformation |
| pamlookup | map an image to a new image by using it as indices into a table |
| pammasksharpen | Sharpen an image via an unsharp mask |
| pammixinterlace | mix adjacent lines to merge interlaced images |
| pammixmulti | blend together multiple PAM images |
| pammosaicknit | validate a mosaic knitting pattern |
| pamoil | turn a PAM image into an oil painting |
| pampaintspill | smoothly spill colors into the background |
| pamperspective | a reverse scanline renderer for Netpbm images |
| pampick | pick images out of a multi-image Netpbm image stream |
| pampop9 | simulate a multi-lens camera such as the Pop9 |
| pamrecolor | alter colors without affecting luminance |
| pamrestack | Rearrange rows of a Netpbm image |
| pamrgbatopng | replaced by pamtopng |
| pamrubber | a rubber-sheeting utility that stretches an image based on control points |
| pamscale | scale a Netpbm image |
| pamseq | generate PAM image of a numerical sequence of tuple values |
| pamshadedrelief | generate shaded relief image from an elevation map |
| pamsharpmap | create map of sharpness in a PNM/PAM image |
| pamsharpness | measure the sharpness of a PNM/PAM image |
| pamshuffle | Shuffle pixels of a Netpbm image |
| pamsistoaglyph | convert a single-image stereogram to a red/cyan anaglyphic image |
| pamslice | extract one line of values out of a Netpbm image |
| pamsplit | split a multi-image Netpbm file into single-image files |
| pamstack | stack planes of multiple PAM images into one PAM image |
| pamstereogram | create a single-image stereogram from a PAM depth map |
| pamstretch | scale up a PNM or PAM image by interpolating between pixels. |
| pamstretch-gen | use pamstretch and pamscale to scale by non-integer values |
| pamsumm | Summarize the samples in a Netpbm image arithmetically |
| pamsummcol | summarize (sum, average, etc) a Netpbm image by column |
| pamtable | print the raster as a table of numerical sample values |
| pamthreshold | threshold grayscale image to black and white |
| pamtilt | print the tilt angle of a PGM file |
| pamtoavs | convert a Netpbm image to an AVS X image |
| pamtodjvurle | convert a Netpbm image to DjVu Color RLE format |
| pamtofits | convert a Netpbm image into FITS format |
| pamtogif | convert a Netpbm image to a GIF image |
| pamtohdiff | convert PAM image to horizontal difference image |
| pamtohtmltbl | convert pnm/pam visual image to an HTML table |
| pamtojpeg2k | convert PAM/PNM image to a JPEG-2000 code stream |
| pamtompfont | Convert Netpbm image to Mplayer bitmap font file |
| pamtooctaveimg | convert a Netpbm image to a GNU Octave image |
| pamtopam | copy PAM image |
| pamtopdbimg | convert a Netpbm image to a Palm Pilot Image Viewer PDB Image |
| pamtopfm | Convert Netpbm image to PFM (Portable Float Map) |
| pamtopng | convert a Netpbm image to PNG |
| pamtopnm | convert PAM image to PBM, PGM, or PPM |
| pamtoqoi | Convert Netpbm image to QOI format (Quite OK Image format) |
| pamtosrf | convert a sequence of Netpbm images to a SRF image file |
| pamtosvg | convert a Netpbm image to a SVG (Scalable Vector Graphics) image |
| pamtotga | convert a Netpbm image to a TrueVision Targa file |
| pamtotiff | convert a Netpbm image to a TIFF file |
| pamtouil | convert a PNM or PNM/transparency image into a Motif UIL icon file |
| pamtowinicon | convert Netpbm PAM images to a Microsoft Windows icon file |
| pamtoxvmini | convert Netpbm image to an XV "thumbnail" picture |
| pamtris | triangle rasterizer featuring perspective-correct interpolation of generic vertex attributes and depth buffering |
| pamundice | combine grid of images (tiles) into one |
| pamunlookup | inverse of pamlookup |
| pamvalidate | validate Netpbm image format |
| pamwipeout | replace detail with smooth gradient from one edge to the other |
| pamx | display Netpbm image in X Window System window |
| pbmclean | despeckle a PBM image |
| pbmlife | apply Conway's rules of Life to a PBM image |
| pbmmake | create a blank bitmap of a specified size |
| pbmmask | create a mask bitmap from a regular bitmap |
| pbmminkowski | compute Minkowski integral |
| pbmnoise | create a PBM image made up of white noise |
| pbmpage | create a one page test pattern for printing |
| pbmpscale | enlarge a PBM image with edge smoothing |
| pbmreduce | read a PBM image and reduce it N times |
| pbmtext | render text into a PBM image |
| pbmtextps | render text into a PBM image using a postscript interpreter |
| pbmto10x | convert a PBM image into Gemini 10X printer graphics |
| pbmto4425 | Display PBM images on an AT&T 4425 terminal |
| pbmtoascii | convert a PBM image to ASCII graphics |
| pbmtoatk | convert a PBM image to a Andrew Toolkit raster object |
| pbmtobbnbg | convert a PBM image into BitGraph graphics |
| pbmtocis | convert a PBM image to a CompuServe RLE image |
| pbmtocmuwm | convert a PBM image into a CMU window manager bitmap |
| pbmtodjvurle | convert a PBM image to DjVu Bitonal RLE format |
| pbmtoepsi | convert a PBM image to an encapsulated PostScript style preview bitmap |
| pbmtoepson | convert a PBM image into Epson printer graphics |
| pbmtoescp2 | convert a PBM image to a ESC/P2 printer file |
| pbmtog3 | convert a PBM image into a Group 3 MH fax file |
| pbmtogem | convert a PBM image into a GEM .img file |
| pbmtogo | convert a PBM image into compressed GraphOn graphics |
| pbmtoibm23xx | convert a PBM image to IBM 23XX printer stream |
| pbmtoicon | replaced by pbmtosunicon |
| pbmtolj | convert a PBM image to HP LaserJet format |
| pbmtoln03 | convert PBM image to DEC LN03+ Sixel output |
| pbmtolps | convert PBM image to PostScript |
| pbmtomacp | convert a PBM image to a MacPaint file |
| pbmtomatrixorbital | convert a PBM image to a Matrix Orbital LCD image |
| pbmtomda | convert a PBM image to a Microdesign .mda |
| pbmtomgr | convert a PBM image into a MGR bitmap |
| pbmtomrf | convert a PBM format image to MRF |
| pbmtonokia | convert a PBM image to Nokia Smart Messaging Formats |
| pbmtopgm | convert PBM image to PGM by averaging areas |
| pbmtopi3 | convert a PBM image into an Atari Degas .pi3 file |
| pbmtopk | convert a PBM image into a packed (PK) format font |
| pbmtoplot | convert a PBM image into a Unix 'plot' file |
| pbmtoppa | convert PBM image to HP Printer Performance Architecture (PPA) |
| pbmtopsg3 | convert PBM images to Postscript with G3 fax compression |
| pbmtoptx | convert a PBM image into Printronix printer graphics |
| pbmtosunicon | convert a PBM image into a Sun icon |
| pbmtowbmp | convert a PBM image to a wireless bitmap (wbmp) file |
| pbmtox10bm | replaced by pbmtoxbm |
| pbmtoxbm | convert a PBM image to an X11 bitmap |
| pbmtoybm | convert a PBM image into a Bennet Yee "face" file |
| pbmtozinc | convert a PBM image into a Zinc bitmap |
| pbmupc | create a Universal Product Code PBM image |
| pc1toppm | convert an Atari Degas .pc1 into a PPM image |
| pcdindex | renamed to pcdovtoppm |
| pcdovtoppm | create index image for a photo CD |
| pcxtoppm | convert a PCX file into a PPM image |
| pdbimgtopam | convert a Palm Pilot Image Viewer PDB Image to a PAM image |
| pfmtopam | Convert PFM (Portable Float Map) image to Netpbm format |
| pgmabel | create cross section using Abel Integration for Deconvolution |
| pgmbentley | Bentleyize a PGM image |
| pgmcrater | create cratered terrain by fractal forgery |
| pgmdeshadow | Deshadow a PGM image |
| pgmedge | replaced by pamedge |
| pgmenhance | edge-enhance a PGM image |
| pgmhist | print a histogram of the values in a PGM image |
| pgmkernel | generate a convolution kernel |
| pgmmake | create a PGM image of a specified gray level and dimensions |
| pgmmedian | apply a median filter to a PGM file |
| pgmminkowski | compute Minkowski integral |
| pgmmorphconv | perform morphological convolutions: dilation, erosion |
| pgmnoise | create a PGM image made up of white noise |
| pgmnorm | replaced by pnmnorm |
| pgmoil | replaced by pamoil |
| pgmramp | generate a grayscale ramp |
| pgmslice | extract one line of pixel values out of a PGM |
| pgmtexture | calculate textural features on a PGM image |
| pgmtofs | convert PGM image to Usenix FaceSaver(tm) format |
| pgmtolispm | convert a PGM image to Lisp Machine format |
| pgmtopbm | convert a PGM image to PBM |
| pgmtopgm | copy PGM image |
| pgmtoppm | colorize a PGM (grayscale) image into a PPM (color) image |
| pgmtosbig | convert PGM image to SBIG format |
| pgmtost4 | convert PGM image to SBIG ST-4 format |
| pi1toppm | convert an Atari Degas .pi1 into a PPM image |
| pi3topbm | convert an Atari Degas .pi3 file into a PBM image |
| pjtoppm | convert an HP PaintJet file to a PPM image |
| pktopbm | convert packed (PK) format font into PBM |
| pngtopam | convert a PNG image into a Netpbm image |
| pngtopnm | Convert a PNG image to PNM: replaced by pngtopam |
| pnmalias | antialias a PNM image |
| pnmarith | replaced by pamarith |
| pnmcat | replaced by pamcat |
| pnmcolormap | create quantization color map for a Netpbm image |
| pnmcomp | replaced by pamcomp |
| pnmconvol | general MxN convolution on a Netpbm image |
| pnmcrop | crop a Netpbm image |
| pnmcut | replaced by pamcut |
| pnmdepth | replaced by pamdepth |
| pnmenlarge | replaced by pamenlarge |
| pnmfile | replaced by pamfile |
| pnmflip | replaced by pamflip |
| pnmgamma | perform gamma adjustment on a PNM image |
| pnmhisteq | histogram equalize a PNM image |
| pnmhistmap | draw a histogram for a PGM or PPM file |
| pnmindex | build a visual index of a bunch of PNM images |
| pnminterp | replaced by pamstretch |
| pnminvert | invert a PNM image |
| pnmmargin | add borders to a PNM image |
| pnmmercator | transform a worldmap from rectangular projection to Mercator projection and vice-versa |
| pnmmontage | create a montage of PNM images |
| pnmnlfilt | non-linear filters: smooth, alpha trim mean, optimal estimation smoothing, edge enhancement. |
| pnmnoraw | replaced by pnmtoplainpnm and pamtopnm |
| pnmnorm | normalize the contrast in a Netpbm image |
| pnmpad | add borders to a PNM image |
| pnmpaste | paste a rectangle into a PNM image |
| pnmpsnr | compute the difference between two images (the PSNR) |
| pnmquant | quantize the colors in a Netpbm image to a smaller set |
| pnmquantall | run Pnmquant on a bunch of files all at once, so they share a common colormap |
| pnmremap | replace colors in a PNM image with colors from another set |
| pnmrotate | rotate a PNM image by some angle |
| pnmscale | replaced by pamscale |
| pnmscalefixed | scale a PNM file quickly |
| pnmshear | shear a PNM image by a specified angle |
| pnmsmooth | smooth out an image |
| pnmsplit | replaced by pamsplit |
| pnmstitch | stitch together two panoramic (side-by-side) photographs |
| pnmtile | replicate an image to fill a specified region |
| pnmtoddif | Convert a PNM image to DDIF format |
| pnmtofiasco | Convert PNM file to FIASCO compressed file |
| pnmtofits | replaced by pamtofits |
| pnmtojbig | PNM to JBIG file converter |
| pnmtojpeg | convert PNM image to a JFIF ("JPEG") image |
| pnmtopalm | convert a PNM image to a Palm Bitmap |
| pnmtopclxl | convert a PNM image to an HP LaserJet PCL XL printer stream |
| pnmtoplainpnm | replaced by pamtopnm |
| pnmtopng | convert a PNM image to PNG |
| pnmtopnm | copy a PNM image |
| pnmtops | convert PNM image to Postscript |
| pnmtorast | convert a PPM into a Sun rasterfile |
| pnmtorle | convert a Netpbm image file into an RLE image file. |
| pnmtosgi | convert a PNM image to a SGI image file |
| pnmtosir | convert a PNM image into a Solitaire format |
| pnmtotiff | replaced by pamtotiff |
| pnmtotiffcmyk | convert a Netpbm image into a CMYK encoded TIFF file |
| pnmtoxwd | convert a PNM into an X11 window dump |
| ppm3d | convert two PPM images into an anaglyph (red/blue 3d glasses) PPM |
| ppmbrighten | replaced by pambrighten |
| ppmchange | change all pixels of one color to another in a PPM image |
| ppmcie | draw a CIE color chart as a PPM image |
| ppmcolormask | produce mask of areas of a certain color in a PPM file |
| ppmcolors | obsolete |
| ppmdcfont | Turn a Ppmdfont file into C source for a builtin font |
| ppmddumpfont | dump a Ppmdfont file |
| ppmdim | dim a PPM image |
| ppmdist | simplistic grayscale assignment for machine generated, color images |
| ppmdither | ordered dither for color images |
| ppmdmkfont | Create Ppmdfont "standard". |
| ppmdraw | draw lines, text, etc on a PPM image |
| ppmfade | generate a transition between two image files using special effects |
| ppmflash | brighten a picture to approach white |
| ppmforge | fractal forgeries of clouds, planets, and starry skies |
| ppmglobe | generate strips to glue onto a sphere |
| ppmhist | print a histogram of the colors in a PPM image |
| ppmlabel | add text to a PPM image |
| ppmmake | create a PPM image of a specified color and dimensions |
| ppmmix | blend together two PPM images |
| ppmnorm | replaced by pnmnorm |
| ppmntsc | Make RGB colors legal for NTSC or PAL color systems. |
| ppmpat | make a pretty PPM image |
| ppmquant | quantize the colors in a PPM image down to a specified number |
| ppmquantall | replaced by pnmquantall |
| ppmrainbow | Generate a rainbow |
| ppmrelief | compute a relief of a PPM image |
| ppmrough | create PPM image of two colors with a ragged border between them |
| ppmshadow | add simulated shadows to a PPM image |
| ppmshift | shift lines of a PPM image left or right by a random amount |
| ppmspread | displace a PPM image's pixels by a random amount |
| ppmtoacad | convert PPM to Autocad database or slide |
| ppmtoapplevol | convert a PPM into an Apple volume label image |
| ppmtoarbtxt | generate image in arbitrary text format from PPM image |
| ppmtoascii | convert a PPM image to ASCII graphics with ANSI terminal color |
| ppmtobmp | convert a PPM image into a BMP file |
| ppmtoeyuv | convert a PPM image into a Berkeley YUV file |
| ppmtogif | |
| ppmtoicr | convert a PPM image into NCSA ICR format |
| ppmtoilbm | convert a PPM image into an ILBM file |
| ppmtojpeg | replaced by pnmtojpeg |
| ppmtoleaf | convert PPM image to Interleaf image format |
| ppmtolj | convert a PPM image to an HP LaserJet PCL 5 Color file |
| ppmtomap | replaced by pnmcolormap |
| ppmtomitsu | convert a PPM image to a Mitsubishi S340-10 file |
| ppmtompeg | encode an MPEG-1 bitstream |
| ppmtoneo | convert a PPM into an Atari Neochrome .neo file |
| ppmtopcx | convert a PPM image to a PCX file |
| ppmtopgm | convert a PPM image to a PGM image |
| ppmtopi1 | convert a PPM image into an Atari Degas .pi1 file |
| ppmtopict | convert a PPM image to a Macintosh PICT file |
| ppmtopj | convert a PPM image to an HP PaintJet file |
| ppmtopjxl | convert a PPM image to an HP PaintJet XL PCL file |
| ppmtoppm | copy PPM image |
| ppmtopuzz | convert a PPM image to an X11 "puzzle" file |
| ppmtorgb3 | separate a PPM image into three PGMs |
| ppmtosixel | convert a PPM image to DEC sixel format |
| ppmtospu | convert a PPM image to an Atari Spectrum 512 image |
| ppmtoterm | convert a PPM image to a ANSI ISO 6429 ascii image |
| ppmtouil | replaced by pamtouil |
| ppmtowinicon | convert PPM image into a Windows .ico file |
| ppmtoxpm | convert a PPM image to an X11 pixmap |
| ppmtoyuv | convert a PPM image to an Abekas YUV file |
| ppmtoyuvsplit | convert a PPM image to 3 subsampled raw YUV files |
| ppmtv | make a PPM image look like taken from an American TV |
| ppmwheel | make a PPM image of a color wheel |
| psidtopgm | convert PostScript "image" data to a PGM image |
| pstopnm | convert a PostScript file to a PNM image |
| qoitopam | Convert QOI format (Quite OK Image format) to Netpbm. |
| qrttoppm | convert output from the QRT ray tracer to a PPM image |
| rasttopnm | convert a Sun rasterfile to a PNM image |
| rawtopgm | convert raw grayscale bytes to a PGM image |
| rawtoppm | convert a stream of raw RGB bytes to a PPM image |
| rgb3toppm | combine three PGM images (R, G, B) into one PPM image |
| rlatopam | convert Alias/Wavefront RLA and RPF image files to PAM image files. |
| rletopnm | convert a Utah Raster Tools RLE image file to a PNM image file. |
| sbigtopgm | convert an SBIG CCDOPS file to PGM |
| sgitopnm | convert a SGI image file to PNM |
| sirtopnm | convert a Solitaire file to PNM |
| sldtoppm | convert an AutoCAD slide file to a PPM image |
| spctoppm | convert an Atari compressed Spectrum file to a PPM |
| spottopgm | convert SPOT satellite images to a PGM image |
| sputoppm | convert an Atari uncompressed Spectrum file to a PPM image |
| srftopam | convert a SRF image file to Netpbm images |
| st4topgm | convert an SBIG ST-4 camera file to PGM |
| sunicontopnm | convert a Sun icon into a Netpbm image |
| svgtopam | convert an SVG (Scalable Vector Graphics) image to Netpbm format |
| tgatoppm | convert TrueVision Targa file to a PPM image |
| thinkjettopbm | convert HP ThinkJet printer commands file to PBM |
| tifftopnm | convert a TIFF file into a PNM image |
| wbmptopbm | convert a wireless bitmap (wbmp) file to a PBM |
| winicon | Microsoft Windows icon files |
| winicontopam | convert a Microsoft Windows icon file into a Netpbm PAM file |
| winicontoppm | convert a Windows .ico image into 1 or more PPM images |
| xbmtopbm | convert an X11 or X10 bitmap to a PBM image |
| ximtoppm | convert an Xim file to a PPM image |
| xpmtoppm | convert an X11 pixmap to a PPM image |
| xvminitoppm | convert an XV "thumbnail" picture to PPM |
| xwdtopnm | convert an X11 or X10 window dump file to a PNM image |
| ybmtopbm | convert a Bennet Yee "face" file to PBM |
| yuvsplittoppm | convert separate Y, U, and V files into a PPM image |
| yuvtoppm | convert Abekas YUV bytes to PPM |
| yuy2topam | convert YUY2 bytes to PAM |
| zeisstopnm | convert a Zeiss confocal file to PNM |
File Formats | |
| pam | Netpbm common 2-dimensional bitmap format |
| pbm | Netpbm bi-level image format |
| pfm | PFM graphic image file format |
| pgm | Netpbm grayscale image format |
| pnm | Netpbm superformat |
| ppm | Netpbm color image format |