1. An image processing method, comprising: blending a plurality of exposure frames captured by one or more image capturing devices using a plurality of exposure times to generate a real-time image; analyzing one or more regions of interest (ROIs) of the real-time image according to ROI information about the one or more ROIs of the real-time image, and accordingly generating an analysis result; and referring to the analysis result to locally adjust image data within the one or more ROIs of the real-time image to generate an adjusted real-time image in real time by utilizing an image processor, wherein the step of referring to the analysis result to locally adjust the image data within the one or more ROIs of the real-time image to generate the adjusted real-time image in real time comprises: providing the analysis result as a feedback to adjust the blending of the different exposure frames so as to adjust a non-linear mapping between digital values and scene brightness values associated with the image data for the adjusted real-time image; or providing the analysis result as a feedback to adjust digital values range mapped from a high scene brightness range higher than a threshold range.