manipulating images

combining images

Note

• foobar.png represents a combined output image.

For sequentially-named images in a single directory, use convert -append *.png foobar.png to combine images vertically or convert +append *.png foobar.png to combine images horizontally.

rotating images

Note

• foo.png represents an unrotated input image.
• bar.png represents a rotated output image.
• baz represents the rotation angle to be applied. Recommended values are:
  • 90
  • 180
  • -90
  • -180

Use convert foo.png -rotate baz bar.png.

prior work

• The -append and +append options were introduced to me by an answer on Super User by 3498DB.
• The method of combining sequentially-named images with ImageMagick was introduced to me by a comment on Stack Overflow by ChillarAnand.
• The method of rotating an image with ImageMagick was introduced to me by an answer on Stack Exchange by GAD3R and a page on the ImageMagick website.

licensing

No rights reserved: CC0 1.0.