imagemagik
convert [input] -paint [no] [output]
- converts the image into a painting, higher the
no
the more it looks like painting
- converts the image into a painting, higher the
convert [input] -swirl [no] [output]
- swirl the image
convert [image1] [image2] -composite -matte [output]
- superimpose
image2
onimage1
- superimpose
-
convert [image1] [image2] -composite -matte [output]
- superimpose centered
image2
onimage1
- superimpose centered
-
convert -size [length]x[width] canvas:[color] [output]
- create a canvas
convert [input] -resize [length]x[width] [output]
- if you leave either length or width, the image is automatically resized maintaining aspect ratio
convert [input] -resize 75% [output]
- resize the image size by 75%
convert [input] -brightness-contrast +10+0 -o [output]
- increase brightness by 10 and contrast by 0 percent
Examples
convert 0000.png -brightness-contrast 20 000.png
convert big.png -resize 70% dpsmall.png
convert -brightness-contrast +10+0 000.png