For purposes of ID, it is recommended you put your email or an easily identifiable name here.

Image quality rating

You will be shown 50 sets of 2 images. The first one will be the uncompressed original image, and the right one will be the modified image. You are to rate the level of degradation of the second image compared to the first one. This can be done by using the keys 1-7 (in order left to right) and enter to go to the next question.

Please take this on a screen larger than 15"+ and resolution above or at 2048x1536 for highest accuracy. Becuase some images are.

Thank you for finishing the survey.

Given the reference image (left), how do you feel about the quality of the distorted image (right)