A method for refreshing a display panel is described. The method includes receiving, at the display panel from post-processing hardware, a look-up table (LUT) based on a histogram of image data and a region of interest (ROI) of the image data. The method also includes applying, at the display panel, the LUT to at least a portion of cached data in panel memory to produce modified data. The method further includes refreshing the display panel based on the modified data.