Merge images (image stacking to reduce noise):Ĭonvert "path/to/images/*.png" -evaluate-sequence mean "path/to/images/merged_image.png"Ĭonvert img.png -fill white -undercolor "#00000080" -gravity South -annotate 0 5 " some text! " new_img. Mogrify -strip -interlace Plane -gaussian-blur 0.05 -quality 85% *.jpg Recompress all JPG images to be really small Mogrify -filter sinc -resize 1024x1024 *.jpg Like above but using sinecoz filter for better sharpness:Ĭonvert img.jpg -filter sinc -resize 1024x1024 newimg.jpgĬonvert img.jpg -scale 1024x1024 newimg.jpg Resize image to a maximum dimensions of 1024, maintaining aspect ratio:Ĭonvert img.jpg -resize 1024x1024 newimg.jpg Here’s a list of commands I frequently use: ![]() The gmtswitch.bat solution, however, has the drawback that the batch file must be located else-where and in a directory that is on the users PATH, otherwise it wont be located after first use unless the other GMT bin directory has a similar batch file. That’s it! If you have any troubles with ImageMagick or the addon, post in the comments below and I’ll try to help you out. 231 17.2 Converting GMT PostScript to PDF or raster images. If you get an error on Windows that says Invalid Parameter, that means Windows is confusing it with it’s own convert utility. This is easy to solve with of the solutions here. Replace someimage.jpg with any image you like, make sure to cd into a directory with images in it first, or replace the image name with a full path like “C:\foo\bar.png” (including quotes if there are spaces in the path). Checking this box will allow you to still use the old convert and mogrify commands.Įverything should be fine and dandy, but to verify that it’s installed properly, run one of the commands below in a terminal/command line: identify someimage.jpg I can scale down an image using ImagkMagick convert: convert aaa.jpg -resize 1200x900 aaa-small. Install legacy utilities – for some reason the new version of ImageMagick got rid of the old convert and mogrify commands in favour of a single more confusing (imo) command.Above command works for command line, if you plan to use the command inside a batch file (. Add application directory to your system path – otherwise Windows won’t recognize any of the commands and tell you something like ‘convert’ is not recognized as an internal or external command, operable program or batch file. svg files in your sub-directories under the root folder you launched your command from. ![]() On Windows all you have to do is download it from the official site and make sure to check these two options during the installation: On Linux (and probably Mac) it’s super easy to install, just type: sudo apt-get install imagemagick ImageMagick is a really awesome little command line program that can be used for all sorts of image manipulation functions, like resizing a bunch of images at once or merging noisy renders into a clean one.
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