VIDEO DATA PROCESSING METHOD AND APPARATUS, VIDEO DISPLAY METHOD AND APPARATUS, AND ELECTRONIC DEVICE AND READABLE STORAGE MEDIUM

Disclosed are a video data processing method and apparatus, a video display method and apparatus, and an electronic device and a readable storage medium. The video data processing method is applicable to a decoding end, and comprises: receiving a video stream sent by an encoding end, decoding the video stream to obtain video image frames, and a brightness feature and an information loss amount value of each video image frame, wherein the information loss amount value is an estimated tone loss amount value of the video image frame when the video image frame is displayed at a terminal device; acquiring a display feature of the terminal device; generating a tone mapping curve of the current video image frame according to the brightness feature and the display feature; and correcting the tone mapping curve according to the information loss amount value to obtain the corrected tone mapping curve, wherein the corrected tone mapping curve is used for representing a mapping relationship between an original RGB electr