I have a client that wants to be able to find their proprietary images other places on the internet if someone steals them.
Is there a way to add meta information that we can track for this purpose inside a jpg file?
My answer was getting too long for comment so posting it as answer.
you can add an entry in EXIF IFD(metadata in binary) of jpeg image. It is not visible in image as it is. There are many EXIF editor/reader tools which will allow you to edit/read it. for example you can add a particular string in makernote of jpeg.
As I said, there are tools available in market, this also means that people can edit also reset the complete EXIF metadata which will erase your data too....
To get around this you can add your copyrighted IFD entry which only you can understand. For this you have to edit some EXIF tool and tweak according to your need.
But while adding your entry in JPEG metadata please take care that you adhere to EXIF/TIFF specifications so that image is not corrupted and readable in all platforms.
Here are some links to help you understand EXIF/TIFF -
http://gvsoft.homedns.org/exif/exif-explanation.html
and
http://www.exif.org/Exif2-2.PDF
Related
I have put the jar file inside the library of my magnolia(https://nexus.magnolia-cms.com/#nexus-search;classname~ImagingServlet), but when I invoke the url to return the cropped image, I get an error, if someone can help me.
[this is what appears to me1
I would guess that you are either missing the destinations folder or user has no access to it. Alternatively you are missing imaging support for DAM - see more at various additional jars you might need in documentation.
Also it seems you just copied thumbnail link from the admincentral, so perhaps you might want to read more on using themes and predefined image variations.
I've run into an issue where there are a collection of .dds(direct draw surface) files which I need to be able to display within an electron/react app. From what I know, a .dds file must be converted to a png/jpeg before being able to be rendered in an img tag. This must also be done completely in memory as I don't want to create additional files.
Here is what I've tried.
Preview-DDS: https://github.com/Jam3/preview-dds
DDS-Parser: https://github.com/Jam3/parse-dds
I noticed Preview-DDS has an option to convert .dds to .png yet I had no luck replicating it in memory. This isn't a subject im really knowledgable on so I'm hoping someone can get me pointed in the right direction!
Does anybody knows how to create a structured report using dicom scope toolkit via console (ubuntu 16.04) with a link to a related image?
The thing is that I have an image of some kind of trauma and I have to connect with a report which is in a text file. The last file should be in .dcm format which contains annotation and a link to an image. I have to use dicom scope program.
Maybe others refrain from answering because your question needs a very long answer. I cannot provide step-by-step instructions, a few hints, though.
The way I would go is to:
(assuming that your image is available in DICOM format):
obtain a sample structured report. I think that the "simple" Basic Text SR is what you want to go for. You can find some samples here.
convert the SR to an XML file using dsr2xml
edit the contents in XML. Do not forget to include your image reference in (0040,a730) Content Sequence -> (0008,1199) Referenced SOP Sequence
convert the XML back to DICOM SR using xml2dsr
By the way: From your question, I did not really understand why you want to use a structured report, as you wrote that your report is plain text. Instead of digging into the complex structure of SR, you may want to consider exporting the report to an Encapsulated PDF document which can reference images as well.
I wish to digitally sign my image collection which consists of JPG , TIFF , BMP , SWf , Fla files.
My question is how to digitally sign these images? If I sign JPG or Tiff , whether signature will get attached to these files (as it happens in document files like PDF or MS word etc)? If so where it get store in file metadata fields , or remain outside? Can i extract signature data?
Please note I wish to sign these images Individually and do not want to get converted into any other format like PDF. Also I donot wish to sign it using email client.
In general those formats were not designed with signing in mind, so your best option is to create a detached signature and keep it near the file. An alternative is to use wrapping signature but then other software won't be able to display the image until you remove the wrapper.
Storing the signature in metadata can be possible for some formats but what applications would be able to handle this?
I know it has been a long time, but you might want to look into steganography. Metadata can be extracted and removed from files. Steganography will allow you to embed digital signatures(encrypted phrases) in a way that is almost only detectable using statistical analysis.
You can also create a mime container which will contain the original image and a detached signature.
Attached signatures are only useful for specific apps, as they are not standard.
Try answering the posters question folks, and not giving another unneeded and unwanted opinion, it's way to common these days in my humble opinion.
Obviously what the poster asked for is to use a signature to copyright his works, so you need to sign the image, period, And a method to do so.
So let's see... grab Gimp or Photoshop. Get your image and create a new layer with transparent background. write in a signature with your mouse or digital pen in an area near the bottom right edge. Choose merge layers and flatten image. Seems like that would do it.
I need a web based document viewer, open sourced(free), in which i can show my tiff images.
I've gone through so many links however couldn't found any product which supports the tiff format, and can be used within my java code.
I have used Viewone-Pro and it completly fulfill all our needs, however, its not an open source product, so if any other product providing such features available, we would like to use that further.
Please suggest.