Abstract: An image processing device includes a memory device that stores a color conversion module, and one or more processors that access the memory device and execute the color conversion module to calculate a color gamut of an input image and perform color conversion of the input image by applying different color conversion matrices according to the color gamut.

Abstract: The present disclosure relates to an image processing device to which contrast improvement effect may be applied, an image processing system, and a method of operating the same. An example method of operating an image processing device includes receiving an image including a plurality of pixels, splitting the image into a plurality of first regions, calculating a histogram for a second region that is greater than a first region of the plurality of first regions, generating a contrast conversion function based on the histogram for each of the plurality of first regions, and converting contrast of a current pixel among the plurality of pixels based on M×M first regions among the plurality of first regions adjacent to the current pixel. M is a natural number greater than or equal to 2.

Abstract: An image signal processor includes a down-scaling circuit that generates a first image signal by down-scaling an input image signal, an image processing engine including a first recomposition circuit that generates a target image signal based on the first image signal, a first up-scaling circuit that generates a third image signal based on a second image signal generated by the image processing engine, a second recomposition circuit that generates an output image signal based on the third image signal, a second up-scaling circuit that generates a fourth image signal by up-scaling the first image signal, and a correction information generation circuit that generates an image information signal by extracting, from the input image signal and the fourth image signal, information about an image quality loss of the first image signal, and transmits the image information signal to the first or the second recomposition circuit depending on a mode.

Abstract: An image processing device includes a memory device that stores a color conversion module, and one or more processors that access the memory device and execute the color conversion module to calculate a color gamut of an input image and perform color conversion of the input image by applying different color conversion matrices according to the color gamut.