An image processing apparatus, comprising: a region of interest configuration unit wherein the ROI configuration unit comprises: a region divider to divide an input image into a plurality of regions having different depth levels, using disparity information of the input image; at least one region calculator to calculate a visual attention level corresponding to each of the plurality of regions, wherein each region calculator generates a color histogram based on hue information corresponding to each region, determines a representative hue of each region based on the color histogram, and calculates the visual attention level for each region based on the representative hue, and a visual attention map generator to generate a visual attention map in correspondence to the input image using the visual attention levels of the plurality of regions, wherein the image processing apparatus further comprises a disparity adjustment unit configured to adjust disparity information included in the input image, using the visual attention map, such that a disparity level of a region determined to have a highest visual attention level is reduced such that a perceived depth is proximate to a display screen. a region of interest configuration unit wherein the ROI configuration unit comprises: a region divider to divide an input image into a plurality of regions having different depth levels, using disparity information of the input image; at least one region calculator to calculate a visual attention level corresponding to each of the plurality of regions, wherein each region calculator generates a color histogram based on hue information corresponding to each region, determines a representative hue of each region based on the color histogram, and calculates the visual attention level for each region based on the representative hue, and a visual attention map generator to generate a visual attention map in correspondence to the input image using the visual attention levels of the plurality of regions, a region divider to divide an input image into a plurality of regions having different depth levels, using disparity information of the input image; at least one region calculator to calculate a visual attention level corresponding to each of the plurality of regions, wherein each region calculator generates a color histogram based on hue information corresponding to each region, determines a representative hue of each region based on the color histogram, and calculates the visual attention level for each region based on the representative hue, and wherein each region calculator generates a color histogram based on hue information corresponding to each region, determines a representative hue of each region based on the color histogram, and calculates the visual attention level for each region based on the representative hue, and a visual attention map generator to generate a visual attention map in correspondence to the input image using the visual attention levels of the plurality of regions, wherein the image processing apparatus further comprises a disparity adjustment unit configured to adjust disparity information included in the input image, using the visual attention map, such that a disparity level of a region determined to have a highest visual attention level is reduced such that a perceived depth is proximate to a display screen.