PJND dataThe picture-wise just noticeable difference (PJND) for a given image and a compression scheme is a statistical quantity giving the smallest distortion that a subject can perceive when the image is compressed with the compression scheme.
To estimate the PJND efficiently, two subjective assessment methods, a slider-based method and a keystroke-based method, were introduced and compared with a traditional one, the relaxed binary search method. The flicker test was applied and the PJND for 10 selected reference images from the MCL-JCI dataset with different distortion levels were assessed. A crowdsourcing study with side-by-side comparisons and forced choice was conducted as well. |
Cite usIf you use our data in your research, please cite the following reference:
@inproceedings{pjnd2020, title={Subjective assessment of global picture-wise just noticeable difference}, author={Lin, Hanhe and Jenadeleh, Mohsen and Chen, Guangan and Reips, Ulf-Dietrich and Hamzaoui, Raouf and Saupe, Dietmar}, booktitle={2020 IEEE International Conference on Multimedia \& Expo Workshops (ICMEW)}, pages={1--6}, year={2020}, organization={IEEE} } |
You can download subjective data from osf: https://osf.io/kfnq6/