Gamma correction method and apparatus, electronic device, and readable storage medium

A gamma correction apparatus for a display panel, wherein the gamma correction apparatus is electrically connected with a collection apparatus, the display panel comprises a first display area and a second display area, a pixel density of the first display area is less than a pixel density of the second display area, and the gamma correction apparatus comprises:

• a processor, configured to control the first display area to display a test picture;
• perform gamma correction on the first display area to obtain first gamma correction data;
• control the second display area to display the test picture according to the first gamma correction data;
• acquire a current display luminance which corresponds to the test picture displayed by the second display area and is collected by the collection apparatus;
• determine a remapping parameter of the second display area based on a grayscale luminance corresponding to the current display luminance displayed in the second display area and a preset pixel grayscale, when the current display luminance is the same as a display luminance corresponding to the preset pixel grayscale displayed in the first display area;
• compensate the first gamma correction data according to the remapping parameter to obtain second gamma correction data;
• and
• control the second display area to display according to the second gamma correction data.