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Commands tagged jpg

Commands tagged jpg from sorted by
Terminal - Commands tagged jpg - 7 results
find . -type f -name '*.jpg' -exec convert -quality 75 {} {} \;
2011-09-23 13:51:18
User: bobby_tables
Functions: find
Tags: ImageMagick find jpeg jpg
0
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Converts all jpg files to 75 quality.

Requires ImageMagick to be installed.

This command was stolen from @climagic on Twitter.

Probably a duplicate of command below, but this command uses slightly higher quality.

http://www.commandlinefu.com/commands/view/707/compress-images-using-convert-imagemagick-in-a-bulk

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rename 's/\.jpe?g$/.jpg/i' *
2010-11-14 21:22:13
User: icebrain
Functions: rename
Tags: rename jpg
12
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Rename all .jpeg and .JPG files to have .jpg extension

the "i" controls case sensitiveness. It's slightly inefficient since it uselessly renames .jpg to .jpg, but that's more than compensated by launching only one process instead of two, besides being shorter to write.

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rename 's/\.jpeg/\.jpg/' *.jpeg; rename 's/\.JPG/\.jpg/' *.JPG
2010-11-14 11:47:04
User: unixmonkey14095
Functions: rename
Tags: rename jpg
1
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Rename all .jpeg and .JPG files to .jpg
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convert in.pdf out.jpg
2010-02-26 10:51:33
User: ivanatora
Tags: pdf jpg convert
1
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Extracts PDF pages as images
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find . -iname "*.jpg" -print0 | tr '[A-Z]' '[a-z]' | xargs -0 cp --backup=numbered -dp -u --target-directory {location} &
2009-12-10 08:47:04
User: oracular
Functions: cp find tr xargs
Tags: backup xargs tr jpg cp preserve
3
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Find jpeg images and copy them to a central location

Use if you have pictures all over the place and you want to copy them to a central location

Synopsis:

Find jpg files

translate all file names to lowercase

backup existing, don't overwrite, preserve mode ownership and timestamps

copy to a central location

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for f in *.flv; do ffmpeg -y -i "$f" -f image2 -ss 10 -vframes 1 -an "${f%.flv}.jpg"; done
2009-05-18 22:34:59
User: topher1kenobe
Tags: ffmpeg jpg flv
12
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for all flv files in a dir, grab the first frame and make a jpg.

This is handy for making screenshots of all your videos for referring to in your flv player.

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for i in *jpg; do jpeginfo -c $i | grep -E "WARNING|ERROR" | cut -d " " -f 1 | xargs -I '{}' find /mnt/sourcerep -name {} -type f -print0 | xargs -0 -I '{}' cp -f {} ./ ; done
2009-05-07 00:30:36
User: vincentp
Functions: cp cut find grep xargs
Tags: Image processing image copy jpeg jpg corrupt sync
0
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sync a directory of corrupted jpeg with a source directory

Find all corrupted jpeg in the current directory, find a file with the same name in a source directory hierarchy and copy it over the corrupted jpeg file.

Convenient to run on a large bunch of jpeg files copied from an unsure medium.

Needs the jpeginfo tool, found in the jpeginfo package (on debian at least).

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