#Imagemagick convert quality mac os
#Imagemagick convert quality install
#Imagemagick convert quality software
#Imagemagick convert quality windows

input.jpgĮxample 4: Create a montage of image thumbnails montage -label '%f' input.jpg output*.jpg -frame 3 -background '#2B81EE' montage.jpgĬreate an image with thumbnails of input.jpg and all output images (using the wildcard *). Swirl the image 720 degrees and resize it to 120%. input.jpgĮxample 3: Add a swirl effect, resize convert input.jpg -swirl 720 -resize 120% output3.jpg The dimensions of the final image remain the same, padded with the default color white. Use the -distort SRT (scale, rotate, translate) distortion type to scale the image 50%, and rotate it 135 degrees clockwise. input.jpgĮxample 2: Scale and rotate image data convert input.jpg -distort SRT. Reduce the image size by 25%, and save it at 92% image quality, as the file output1.jpg. Example 1: Resize image, specify image quality convert myimage.jpg -resize 25% -quality 92 output1.jpg The following are sample commands you can use with ImageMagick.

#Imagemagick convert quality windows

If you're not using Linux or BSD, you can run these commands on macOS with XQuartz, or on Microsoft Windows with VcXsrv. The commands animate, display, and import require an X server (the X Window System) to function. Also, the script interpreter can be accessed with magick-script. In version 7 of ImageMagick, these tools can be accessed with the magick command, for example magick compare. Useful for situations with slow data streams, or very large images whose data processing should begin before the entire image is stored. Process image data and store it to a file as it is being streamed from an input source. This command can create a single image containing thumbnails of many images. Similar to convert, but overwrites the original image.Ĭreate an image composed of smaller images. This tool can also blur, crop, despeckle, dither, and otherwise modify the content of an image.ĭisplay the image dimensions, quality, and other image metadata. Interpret and execute scripts written in MSL, the Magick Scripting Language.Ĭonvert images from one file format to another.

Commandĭisplay an image sequence as an animation.Īnalyze two images, and visualize mathematical differences between them.Ĭompose one image over another with variable transparency to create a composite image. ImageMagick's features are divided into individual tools, each with a command. Today, ImageMagick is a default component of many Linux and BSD operating systems, and is freely available for Microsoft Windows, macOS, and iOS.

#Imagemagick convert quality software

Documentation and additional information.ĭevelopment of ImageMagick began in 1987, authored by software engineer John Cristy.See also my general installation instructions.

#Imagemagick convert quality install

jpg so that the resulting file names don't look like which might potentially confuse the convert program.Īs prerequisites you need to install the packages imagemagick and netpbm from fink.

It may be possible to shorten this script by replacing `echo $1 | cut -f1 -d'.'` with $1 the purpose of the longer expression is to cut off the original suffix (e.g. The cropped image is stored as a file with the prefix 'cropped-'. The script takes one argument: the image file name (which can be any image format recognized by convert. sw/bin/pnmcrop /tmp/`echo $1 | cut -f1 -d'.'`-pnmcrop.ppm | convert -quality 100 - cropped-$1 If this does not work for you (there was a period when this did not work on my system), you may want to read on.Īs a workaround, one can use the following combination (which you can store as an executable shell script, perhaps call it cropImage): In my current version of the software, images can be cropped by typing convert -trim instead.

#Imagemagick convert quality mac os

In some versions of this software on Mac OS X, this option doesn't work. It used to be possible to crop images automatically by including the command-line option convert -crop 0x0. This command makes it possible to scale, compress and otherwise manipulate images of many different types, including both bitmap (jpeg, gif etc.) and vector formats (pdf etc.).

Imagemagick is an open-source collection of graphics utilities which includes the convert command.