Possible false positive copyright?

[pombredanne]

Description

This is a problem found in ClearlyDefined by @bduranc

Here is the gist of a chat conversion:

duranbc: @philippe : Not necessarily a bug, but perhaps an interesting observation.
The following component shows (C) Hewlett-Packard, however the statement appears to be extracted from the metadata of a JPEG image.
CD Definition: https://clearlydefined.io/definitions/git/github/h2non/filetype/b2d66fbb5aed4a1fe9f0ca71a109b9161373866a
If you look inside the file "sample.tar", you will find a few JPEG images. The metadata has the HP copyright statement inside it.
https://github.com/h2non/filetype/blob/b2d66fbb5aed4a1fe9f0ca71a109b9161373866a/fixtures/sample.tar
I did not know CD goes this deep into binary files, and have not taken notice of this before.

Philippe:
actually this is scancode diving in these binaries quite happily (it is designed to do this)

So Copyright (c) 1998 Hewlett-Packard Company is correct there. BUT one test sample image... this is also noise, is it?
actually this very specific copyright "Copyright (c) 1998 Hewlett-Packard Company" in a JPEG file is a problem eventually: https://www.flickr.com/help/forum/en-us/7987/
It sounds like this is present in many JEPG files BUT at the same time this is not in the exif metadata of the image
net-net, I think this should be always excluded when found exactly in a JPEG file
or not... there seems to be more to it ...
See nodejs/node#5749
So ScanCode may not be wrong there AND there is a possibly weird underlying issue ... that said these images (the one you found) are test fixtures and therefore not core code, so this is minor in this case

[pombredanne]

Here is the output of ImageMagick indentify:

$ identify -verbose sample.jpg 
Image: sample.jpg
  Format: JPEG (Joint Photographic Experts Group JFIF format)
  Mime type: image/jpeg
  Class: DirectClass
  Geometry: 600x400+0+0
....
    icc:copyright: Copyright (c) 1998 Hewlett-Packard Company
    icc:description: sRGB IEC61966-2.1
    icc:manufacturer: IEC http://www.iec.ch
    icc:model: IEC 61966-2.1 Default RGB colour space - sRGB
 ....
 Version: ImageMagick 6.8.9-9 Q16 x86_64 2019-06-15 http://www.imagemagick.org

[pombredanne]

This copyright is https://en.wikipedia.org/wiki/ICC_profile and does not apply really to the image proper. The way to handle could be:

1. have an optional way to ignore copyrights detected in images
2. specifically ignore icc:copyright when in an image
3. have a generic way to ignore certain copyright in some context based on an option and configuration