Compare all images in folder

Nobody has claimed this yet.

Hi,

is there a way to compare all images in a folder with their corresponding references (same filename, but different folder)?

Something like:

``` js
gulp.task('diff', ['capture'], function() {

var options = {
referenceImage : './tests/previous/*',
differenceMapImage : './tests/diff/',
logProgress : true
}

return gulp.src('./tests/latest/*')
.pipe(plugins.imageDiff(options))

})
```

Thanks

Start with the gulp task example and the imageDiff options shown in the issue, focusing on how referenceImage and differenceMapImage are resolved. Check the existing plugin entry point and tests, if present, to determine how image pairs are selected. Done means images in tests/latest are matched by filename with tests/previous and their difference maps are written to tests/diff.

Written by the indexing model from the issue text.