How to extract metadata from JPEG

Hi @knotboy, do you mean that beside the standard format attributes that can be exposed in the reader ?(https://docs.safe.com/fme/html/FME_Desktop_Documentation/FME_ReadersWriters/jpeg/Feature_Representation.htm

there are more metadata attributes?

Hi if these attributes are not available as format or user attributes, then I would suggest trying to use a third party tool (via the system caller) to possibly make these specific attributes available in your workspace.

"D:\apps\IrfanView\i_view32.exe @Value(path_windows) /info=@Value(path_directory_windows)\@Value(path_rootname).txt /fullinfo"

You can also use the PythonCaller with the exifread module (must be installed manually):

import exifread
import fmeobjects

class FeatureProcessor(object):
    def input(self,feature):
        filename = feature.getAttribute('image_filename')
        if filename:
            with open(filename, 'rb') as f:
                tags = exifread.process_file(f, details=False)
                for tag in tags.keys():
                    feature.setAttribute(tag, str(tags[tag]))
        self.pyoutput(feature)

The above code will read the jpeg or tiff file specified in the input attribute "image_filename" and add any metadata tags as feature attributes, e.g.:

`Image Make' has value `GoPro'
`Image Model' has value `HERO3+ Black Edition'
`Image Orientation' has value `Horizontal (normal)'