NewThumbnail creates a new Thumbnail service that generates thumbnails.

ParseResolution returns an image.Rectangle representing the resolution given as a string.

ParseResolutions creates an instance of Resolutions from resolution strings.

BMPType is the value to specify a BMP output.

JPEGType is the value to specify a JPEG output.

PNGType is the value to specify a PNF output.

Config is the config for the Thumbnail service.

Thumbnail is the service that generates thumbnails.

FileType is the output format of the thumbnail.

Resolutions is a list of image.Rectangle representing resolutions.