CHECKMARK IMAGES

The following images are provided with the Checkmark package for testing. In some cases the images have been compressed and resized for better web viewing please download the testset here: testimages.zip

Other images can be obtained from Fabien Petitcolas' website

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GENERAL IMAGES

These images are used for evaluating mose applications. We currently use these in the copyright protection application, banknote, non-geometric and video frame application. For the purpose of testing MPEG2 video watermarking we provide a test set of videos at our video watermarking website under samples. At this time Checkmark only attacks single frames which are equivalent to images. Support for true MPEG2 benchmarking will be included in a futur release.

 

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MEDICAL IMAGES

These images are used in the medical application. The images are charactersitic of medical images in that they contain large dark or bright regions.

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Logo images

These images are typically small and have very few textured regions. They also have few colors or gray scale levels. As a consequence they are typically difficult from the watermarking perspective.