PhoneGap requires the same image be converted to a number of sizes with a specific filename. Goal of image_resize is to automate the image resize process.

Note: this is ios specific at this point.

Once created icons / splash files go into /platforms/ios/<project//(splash or icons)

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usage

This uses sips to do the image resize (so might require tweaking on a non-mac os).

create icon images

resize images to icon sizes

ruby image_resize.rb -i <filename>

output will be a icons directory with all the newly created files.

create splash images

crop images to splash image sizes

ruby image_resize.rb -s <filename>

output will be a splash directory with all the newly created files.