A display apparatus includes: a timing controller configured to extract first image information from an input image by analyzing the input image, to determine, based on the first image information, whether to utilize a high dynamic range (HDR) function for the input image, to set an image output mode based on a result of the determination, to set a reference tone curve for the input image based onthe image output mode, and to generate an output image by converting the input image based on the reference tone curve; and a display panel configured to display the output image.