![]() I started with the following image as a base for all the examples that follow: These examples are a little more advanced and include some extra information on techniques. Resizing seems to be a very common task that people need automated. With convert you can easily write a script that resizes call images in a directory. Before you start resizing images it helps if you read a howto on resizing digital images.Įxample: convert flower_original.jpg -resize 640x480 flower.jpgįor more in depth examples of resizing check out the examples page and the convert -resize options. If you are interested in the output of the different filter types check out these examples of each of them at different levels. Sharpening an image can bring out some details that get lost when you resize or compress an image. ![]() I came across an article about using sharpen to make a picture look better and went off to find a way to reproduce the results with ImageMagick. It wasn't easy but I found another article on sharpening with ImageMagick. I have found the following command works the best:Įxample: convert flower.jpg -unsharp 1.5x1.0+1.5+0.02 flower_unsharp.jpgįor more information on sharpening see this example page and the -unsharp option. ImageMagick supports a wide range of image formats and you can use convert to change one format into another. An example of that would be png and jpg quality.Įxample (jpg to png): convert flower.jpg -quality 95 flower_quality.pngĮxample: (jpg to jpg – lower quality): convert flower.jpg -quality 80% flower_quality.jpg Some formats have optional commands that can be given to change the output.
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