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Commands tagged convert

Terminal - Commands tagged convert - 50 results

for fn in xkcd*.png xkcd*.jpg; do echo $fn; read xw xh <<<$(identify -format '%w %h' $fn); nn="$(echo $fn | sed 's/xkcd-$[^-]\+$-.*/\1/')"; wget -q -O xkcd-${nn}.json http://xkcd.com/$nn/info.0.json; tt="$(sed 's/.*"title": "$[^"]\+$",.*/\1/' ...

2012-01-06 20:26:11

User: fpunktk

Functions: echo read wget

Tags: bash ImageMagick sed identify convert xkcd

-2

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add title and alt-text to your collection of xkcd comics

full command:

for fn in xkcd*.png xkcd*.jpg; do; echo $fn; read xw xh <<<$(identify -format '%w %h' $fn); nn="$(echo $fn | sed 's/xkcd-\([0-9]\+\)-.*/\1/')"; wget -q -O xkcd-${nn}.json http://xkcd.com/$nn/info.0.json; tt="$(sed 's/.*"title": "\([^"]*\)", .*/\1/' xkcd-${nn}.json)"; at="$(sed 's/.*alt": "\(.*\)", .*/\1/' xkcd-${nn}.json)"; convert -background white -fill black -font /usr/share/fonts/truetype/freefont/FreeSansBold.ttf -pointsize 26 -size ${xw}x -gravity Center caption:"$tt" tt.png; convert -background '#FFF9BD' -border 1x1 -bordercolor black -fill black -font /usr/share/fonts/truetype/freefont/FreeSans.ttf -pointsize 16 -size $(($xw - 2))x -gravity Center caption:"$at" at.png; th=$(identify -format '%h' tt.png); ah=$(identify -format '%h' at.png); convert -size ${xw}x$(($xh+$th+$ah+5)) "xc:white" tt.png -geometry +0+0 -composite $fn -geometry +0+$th -composite at.png -geometry +0+$(($th+$xh+5)) -composite ${fn%\.*}_cmp.png; echo -e "$fn $nn $xw $xh $th $ah \n$tt \n$at\n"; done

this assumes that all comics are saved as xkcd-[number]-[title].{png|jpg}.

it will then download the title and alt-text, create pictures from them, and put everything together in a new png-file.

it's not perfect, but it worked for nearly all my comics.

it uses the xkcd-json-interface.

though it's poorly written, it doesn't completely break on http://xkcd.com/859/

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youtube-dl -o bun.flv http://www.youtube.com/watch?v=SfPLcQhXpCc; mplayer bun.flv -ss 03:16 -endpos 5 -vo jpeg:outdir=bun:quality=100:smooth=30:progressive -vf scale=320:240 -nosound; convert -delay 4 -loop 0 bun/*.jpg bun.gif

2012-01-05 17:53:22

User: joeyliechty

Tags: mplayer youtube convert gif

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Create an animated gif from a Youtube video

Creates a better looking gif than the original post via imagemagick processing high quality jpgs, rather than converting directly to gif from the video itself.

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python -c 'print "hello".encode("hex")'

2011-12-13 23:05:17

User: atoponce

Functions: python

Tags: hex ascii python convert

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convert ascii string to hex

You can use "decode()" in a similar manner:

python -c 'print "68656c6c6f".decode("hex")'

evince-thumbnailer --size=600 book.pdf book.png

2011-11-23 16:03:44

User: cesarbustios

Tags: convert evince-thumbnailer

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Create thumbnail of PDF

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convert -resize 200 awk.pdf[0] awk.png

2011-11-23 03:50:15

User: unixmonkey21861

Tags: convert

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create thumbnail of pdf

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mencoder vcd://2 -o sample.avi -oac copy -ovc lavc -lavcopts vcodec=mpeg4

2011-10-02 17:25:14

User: mmghaseminya

Tags: avi convert vcd

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Convert vcd to avi format

Convert VCD to .AVI

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tr -d "\r" < file.vcf | tr "\0" " " > file.vcf.txt

2011-09-09 19:21:44

User: totti

Functions: tr

Tags: text convert vcard

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Convert phone book VCARD to text

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convert -background none -pointsize 55 label:"`whoami`" me.png

2011-09-07 17:06:38

User: totti

Tags: ImageMagick image convert

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Text to image with transparent background

Create transparent image to use as icon, watermark for other images, etc.

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sox is_that_correct.wav -t raw -r 8000 -s -w -c 1 is_that_correct.sln

2011-08-31 13:03:30

User: tkembo

Tags: sound convert asterisk format

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Convert a .wav file to .sln file

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sudo sox <file name>.wav -r 8000 <file name>.gsm

2011-08-11 07:29:16

User: tkembo

Functions: sudo

Tags: sound convert

-3

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Convert .wav audio files to .gsm format

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sudo sox <file name>.wav -r 8000 <file name>.gsm

2011-08-11 07:29:14

User: tkembo

Functions: sudo

Tags: sound convert

-3

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Convert .wav audio files to .gsm forman

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xxd -p <<< <STRING>

2011-07-24 19:16:32

User: h3xx

Tags: hex ascii convert

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convert ascii string to hex

Even adds a newline.

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yt-pl2mp3() {umph -m 50 $1 | cclive -f mp4_720p; IFS=$(echo -en "\n\b"); for track in $(ls | grep mp4 | awk '{print $0}' | sed -e 's/\.mp4//'); do (ffmpeg -i $track.mp4 -vn -ar 44100 -ac 2 -ab 320 -f mp3 $track.mp3); done; rm -f *.mp4}

2011-03-20 14:43:20

User: sattellite

Functions: awk echo grep ls rm sed

Tags: youtube mp3 convert download playlist

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Download YouTube music playlist and convert it to mp3 files

umph is parsing video links from Youtube playlists ( http://code.google.com/p/umph/ )

cclive is downloading videos from Youtube ( http://cclive.sourceforge.net/ )

Example:

yt-pl2mp3 7AB74822FE7D03E8

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xml2asc < inputfile > outputfile

2011-02-23 12:22:18

User: forcefsck

Tags: html convert utf8 entities

-1

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encode/decode HTML entities

For reverse, there's asc2xml

asc2xml < entitiesfile > utf8file

They come as a part of the html-xml-utils debian package.

PS. Tried to submit sample data, but the site autoconverted the non ascii to html entities. So a bit of imagination is needed.

ffmpeg -i input.flv -aq 2 output.mp3

2011-02-16 15:05:41

User: maedox

Tags: ffmpeg mp3 flv convert

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Dumping Audio stream from flv (using ffmpeg)

Gives stereo, 16bit, 44.1kHz (default in Ubuntu/Medibuntu ffmpeg).

-aq 2 = 220-250kbit/s VBR, lower number is better quality. 2 or 3 should be good for most people. If you want the best mp3 q you should remove -aq and use -ab 320k to get 320kbit/s, but that is probably overkill for most .flv videos.

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lame rec01.wav rec01.mp3

2011-01-23 20:44:14

User: schef

Tags: mp3 lame convert wav

-3

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Convert wav to mp3

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mencoder -idx a.ogg -ovc lavc -oac mp3lame -o b.avi

2010-12-20 14:30:48

User: lukasz

Tags: video ogg avi convert

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Convert .ogg to .avi

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for i in $(ls *.flv); do ffmpeg2theora -v 6 --optimize $i; done

2010-12-01 14:13:31

User: joenjeru

Functions: ls

Tags: video ogg flash directory flv convert ffmpeg2theora html5 theora flashgot

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Convert all FLV's in a directory to Ogg Theora (video)

Do you have a large library of flv's you have picked up over the years using FlashGot Firefox plugin?

Do you want to be able to convert them to Ogg Theora (video) at once?

Try out this script...

mogrify -trim *png

2010-10-21 15:09:33

User: houghi

Tags: convert png trim

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Trim png files in a folder

That should be a short as it can get.

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for file in *.png; do mogrify -trim "$file"; done

2010-10-21 13:58:05

User: depesz

Functions: file

Tags: convert png trim

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Trim png files in a folder

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for file in `ls *.png`; do convert -trim $file $file; done

2010-10-21 13:20:30

User: adrienhaxaire

Functions: file

Tags: convert png trim

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Trim png files in a folder

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for f in *;do flac -cd $f |lame -b 192 - $f.mp3;done

2010-10-19 07:55:11

User: nickleus

Tags: audio bash music mp3 flac lame convert bitrate

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convert all flac files in a folder to mp3 files with a bitrate of 192 kbps

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convert -density 300 input.pdf -fill "rgb(255,255,255)" -opaque "rgb(0,0,0)" output.pdf

2010-10-07 17:24:19

User: akrog

Tags: pdf print convert

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Replaces a color in a PDF document, useful for removing a dark background before printing.

The pdf is first converted to a bitmap, so change "-density" to match your printer resolution. Also be careful about the RAM required.

In this example rgb(0,0,0) is replaced by rgb(255,255,255), change to suit your needs.

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for file in *.jpg; do convert "$file" -resize 800000@ -quality 80 "small.$file"; done

2010-09-13 19:06:14

User: grinob

Functions: file

Tags: xargs convert

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resize all JPG images in folder and create new images (w/o overwriting)

Convert all jpegs in the current directory into ~1024*768 pixels and ~ 150 KBytes jpegs

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ls *.JPG | cut -d . -f 1 | xargs -L1 -i convert -resize 684 {}.JPG {}.jpg

2010-09-12 19:47:38

User: homoludens

Functions: cut ls xargs

Tags: xargs convert

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resize all JPG images in folder and create new images (w/o overwriting)

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