Image / video tools I've written over the years, mostly for use with netpbm or pbmplus tools.
- addtext - adds text to an image in a limited fashion
- apply-rain - overlay
mkrain output on an image
- asci - view an image as ascii (pbmtoascii)
- asciiversion - makes an ascii art image (
pbmtoascii), then converts that text to pgm
- asciiversion2color - makes red/green/blue ASCII versions, and an HTML file that overlays the channels
- bigtile - pnmtile / pnmenlarge wrapper using PNG input (created for Pixel Studio images)
- blowaway - a many scraps of paper blowing away effect
- colorascii-2014 - makes multiple sized and colored ASCII art versions then overlays them all to one image
- colorizeascii - from a PPM file and a text file, create color html
- contactsheet - make a pan-n-scan "contact" sheet by chopping an image into multiple overlapping tiles and reassembling them, uses
mkfilmframe and pnmchop
- frames-to-video -
mencoder wraper to turn a series of JPEGs into a video clip
- histo - very succinct summary of
ppmhist output
- histochart - quant then
ppmhist then make fig format color swatch chart
- generic-subtitles - subtitle template generator for video-explode
- gifexplode - explode an animated gif into frames
- jpeg2000toppm - makes
j2k_to_image from openjpeg-tools behave like a regular *toppm tool
- joydivision - duplicate the graph effect of Joy Division's Unknown Pleasures -- coded against prerelease Image::Xfig 0.20
- ledpixelize - pixelize an image in the style of an LED screen
- linenormalize - normalize image contrast on a line-by-line basis
- mkanimgif - make an animated gif with
gifsicle or convert
- mkbmp - convert a large number of pnm files to bmp
- mkcenter - pad an image to be in the center of a box
- mkfavicon - from one image create a favicon.ico with multiple embedded icon sizes
- mkfilmframe - make film frame border
- mkgif - convert a large number of pnm files to gif
- mkjpg - convert a large number of pnm files to jpg
- mkmasks - create many pbm single color specific image masks from one image
- mkmanymosaic - I made a lot of index mosaics with this
- mkmosaic - pnmcat in to rows and columns
- mkpng - convert a large number of pnm files to png
- mkppm - convert a large number of pnm files to ppm
- mkrain - rain drop effect
- mkrotate - make sets of rotated images or make a line be level
- mkspinner - rotate in small increments to maximize distortion, make animation of results
- mktextframes - convert free form text to block frames for use with
pbmtext or texttopnm
- mkthnail - convert a large number of files to thumbnails
- mktiled - pnmcat in to rows and columns (less complex than
mkmosaic)
- mktiledimage - fill a space by tiling an image
- mkvector - "Vectorizes" an image, after Randal L. Schwartz's image duplicate identification algorithm (not vector art)
- mkvidpano - naively turns frames of a video pan into a panorama
- padimage - pad an image to a particular size
- pgmtoascii - Convert PGM to ASCII art.
- pgmtoibmascii - Convert PGM to block character art (IBM/ANSI) blocks
- pgmtohalftonepbm - Expand pixels in a PGM to make "halftone" pbm images
- pgmtomosaic - makes a mosaic using tiles selected from a small number of images
- pnmchdim - Change the dimensions of a PBM/PGM/PPM file without changing the image data.
- pnmchop - chop an image into tiles with or without overlap
- pnminfo - Print information about PBM/PGM/PPM files
- pnminfomax - find min/max sizes for a group of PBM/PGM/PPM files
- pnmsupersampler - Simulates the effect of a multishutter supersampler type camera
- ppmlowbit - Extract low order bits from an image and make those high order bits (steganographic tool)
- ppmmosaic - enlarge pixels to create mosaic-like images
- ppmstegan - trivial steganographic tool
- psp-preview - Gallery.cache file
- redact - randomly blackout (censor) parts of an image
- reverse-clip -
video-explode | reverse | frames-to-video
- rgbtriptych - create red/green/blue triptych from an image
- rorschach - reduce colors, halve, and mirror an image for a Rorschach test version
- sliceoflife - create an image from random bands of an original
- stripehide - hide a PBM/PGM image in stripes, pops out from a distance
- texttopnm - replacement for
pbmtext that uses one image per character
- video-explode -
mplayer wrapper to turn video into jpeg frames
Libraries used