URLdiff
Computes and displays the visual differences between two URLs
urldiff takes two URLs, renders them as images and compares them pixel by pixel outputs the visual difference in percentage between the two URLs and and generates a colour image of the differences.
Install:
gem install urldiff
Requires:
- Gems
gem install oily_png imgkit wkhtmltoimg_binary
Tested on Ruby 2.1.0
Usage:
urldiff.rb -i sitelist.csv -o output.csvOptions:
-i FILE read from CSV
-o FILE output (append) results to CSV
-f URL compare one site - First site
-s URL compare one site - Second site
Example:
# cat sites.csv
http://www.google.com.au,http://www.google.co.nz
# urldiff.rb -i sites.csv -o output.csv
Rendering http://www.google.com.au
Rendering http://www.google.co.nz
Calculating Diff...
pixels (total): 1024000
pixels changed: 6269
pixels changed (%): 0.61220703125%
Generating DIFF-www.google.com.au-www.google.co.nz.png
Appending output to output.csv
# cat output.csv
http://www.google.com,http://www.google.co.nz,0.61220703125%
# ls *.png
www.google.com.au.png
www.google.co.nz.png
DIFF-www.google.com.au-www.google.co.nz.pngScreenshots:
First URL:
Second URL:
Image Diff:
