Research Article

Image Quality Evaluation Based on Gradient, Visual Saliency, and Color Information

Figure 2

An illustration for the importance of visual saliency and gradient information. (a) reference image, (b) reference image in gradient domain, (c) saliency map of the reference image, (d) distorted image, (e) distorted image in gradient domain, and (f) saliency map of the distorted image.
(a)
(b)
(c)
(d)
(e)
(f)