1. A system for color and brightness adjustment of an object in a target image, said system comprising: a display device; and one or more circuits in an image processing device communicatively coupled to said display device, said one or more circuits being configured to: determine a first brightness value of a first pre-specified area in a source image and a first average color value of said source image, wherein said first pre-specified area is in proximity to an object mask of said object in said source image; determine a second brightness value of a second pre-specified area in a target image and a second average color value of said target image, wherein said second pre-specified area is in proximity to said object mask of said object in said target image; adjust a brightness value of each pixel of said object in said target image based on a ratio of said determined said second brightness value and said determined said first brightness value; and adjust a color value of each pixel of said object in said target image when a difference value between said determined said first average color value and said determined said second average color value exceeds a threshold color value.