问题
I want to pixelate and/or blur an image. I've found the command for the blurring:
$convert image.jpg -blur 18,5 newimage.jpg
to work but I cannot blur the image any more. And how do I pixelate the image? I couldn't find a sound example around the net.
Thx
回答1:
This worked nicely for me, gives a sort of cross between pixelating and blurring:
convert -resize 10% image.jpg newimage.jpg
convert -resize 1000% newimage.jpg newimage.jpg
You can be sure that the data cannot be retrieved, should that be important to you.
Changing the %ages will change the amount of pixelation/blur
回答2:
To get a proper square pixellation, try:
convert -scale 10% -scale 1000% original.jpg pixelated.jpg
回答3:
I don't know anything about ImageMagick, but you can try resizing the image using bicubic to a much smaller dimension, then resizing the image back to a bigger one.
The trick works using .net's System.Drawing object.
来源：https://stackoverflow.com/questions/331254/how-to-pixelate-blur-an-image-using-imagemagick