[![Build Status](https://travis-ci.org/dayflower/p5-Image-JPEG-EstimateQuality.png?branch=master)](https://travis-ci.org/dayflower/p5-Image-JPEG-EstimateQuality) # NAME Image::JPEG::EstimateQuality - Estimate quality of JPEG images. # SYNOPSIS use Image::JPEG::EstimateQuality; jpeg_quality('filename.jpg'); # => 1..100 integer value jpeg_quality(FILEHANDLE); jpeg_quality(\$image_data); # DESCRIPTION Image::JPEG::EstimateQuality determines quality of JPEG file. It's approximate value because the quality is not stored in the file explicitly. This module calculates quality from luminance quantization table stored in the file. # METHODS - jpeg\_quality($stuff) Returns quality (1-100) of JPEG file. scalar: filename scalarref: JPEG data itself file-glob: file handle # LICENSE Copyright (C) ITO Nobuaki. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. # AUTHOR ITO Nobuaki