ImageMagick

Image tiling effect

This is a command for ImageMagick, a software suite for image manipulation.

The command adds a watermark to an image called "toes.png" and saves the resulting image as "snibtile.jpg". The watermark is created by using the "label" command to create a text label that says "snibgo" in blue with a font size of 20. The label is then rotated by -20 degrees and saved as a temporary image called "TILE".

The command then uses the temporary image as a pattern to fill the entire input image with the watermark. This is done by using the "-fill" option to set the fill color to the temporary image, and the "-draw" option to fill the entire image with the pattern. The resulting image is saved as "snibtile.jpg".

convert -background None -fill Blue  -pointsize 20 label:snibgo  -rotate -20 +repage  +write mpr:TILE +delete toes.png -alpha set ^
  ( +clone ^
    -fill mpr:TILE -draw "color 0,0 reset" ^
  ) ^
  -composite ^
  snibtile.jpg

Convert command to add watermark

This is a Bash script that adds a watermark to an input image using the ImageMagick command-line tool. The script takes two arguments: a text string for the watermark and the file path of the input image.

Here is a breakdown of what each line of the script does:

1. #!/bin/bash: This is the shebang line that specifies that the script should be run using Bash.

2. convert -background none -fill "rgba(128,128,128,0.25)" -font Arial -rotate -30 -pointsize 14 label:"$1" /Users/xxx/Desktop/watermark.png: This command generates a PNG image with the specified text string as a watermark. It uses the convert command from ImageMagick to create the image with the following options:

   • -background none: Sets the background to transparent.

   • -fill "rgba(128,128,128,0.25)": Sets the fill color to a semi-transparent gray.

   • -font Arial: Sets the font to Arial.

   • -rotate -30: Rotates the text by 30 degrees clockwise.

   • -pointsize 14: Sets the font size to 14 points.

   • label:"$1": Specifies the text string for the watermark.

   • /Users/xxx/Desktop/watermark.png: Specifies the output file path for the watermark image.

3. convert $2 -alpha on \( +clone -tile /Users/xxx/Desktop/watermark.png -draw "color 0,0 reset" \) -composite test.png: This command takes the input image and adds the watermark image to it. It uses

#!/bin/bash # usage: ./watermark.sh "your text" input_image_path.png 
convert -background none -fill "rgba(128,128,128,0.25)" -font Arial -rotate -30 -pointsize 14 label:"$1" /Users/xxx/Desktop/watermark.png 
convert $2 -alpha on \( +clone -tile /Users/xxx/Desktop/watermark.png -draw "color 0,0 reset" \) -composite test.png rm /Users/xxx/Desktop/watermark.png