vanillaforum plugin : lightweight and simple image uploader
It's well compatible with WYSIWYG (CLEditor) and ButtonBar.
It will generate diffrent format code (Markdown、Html、BBcode) according to your configuration ($Configuration['Garden']['InputFormatter']).
Configurations:
$Configuration['Plugins']['UploadImage']['Multi'] = TRUE; //whether allow multi-files selection
$Configuration['Plugins']['UploadImage']['MaxHeight'] = '';
$Configuration['Plugins']['UploadImage']['MaxWidth'] = 650; //image height larger than 'MaxWidth' will be resized
$Configuration['Plugins']['UploadImage']['MaxFileSize'] = '2mb';