magick xc:Red[100x30!]
	

The default "canvas:" or "xc:" is a 1x1 pixel square. The bang "!" will cause the command to ignore the 1:1 aspect and force the resize to the 100x30 dimensions. When included in the code it will create a red canvas 100px x 30px

From here: Shortcut for default canvas

magick xc:Red[100x30!] show:
	

When run it will create a red canvas 100px x 30px and display it within the Imagemagick display window. Generaly used from a command line

magick -size 300x300 -define gradient:direction=east gradient:red-none eastWestGradient.png
magick -size 300x300 -define gradient:angle=45 gradient:red-none fortyFiveGradient.png
	

No need to draw a gradient and rotate it as in previous versions; the direction can now be set when it is created

From here: New gradiant methods

magick -ping IMAGE.jpg XMP:-
	

Displays the xmp data from a compatible file. Generaly used from a command line

system("magick -ping photo.jpg XMP:-");
	

This will display the XMP data on the page.

-ping will read the required data without loading the image and can be quicker

convert granite: rose: -background none -gravity south -smush -10 result.jpg
	

-smush is a undocumented feature that has some interesting features

From here: Smush

$size = exec("convert input.jpg -resize 50% -format \"%wx%h\" -write info: output.jpg ");
	
echo "new size = $size";
	

Display the new size of a resized image