Picture display area extraction method and related device

The embodiment of the invention provides a picture display area extraction method and a related device, and the method comprises the steps: generating a target salient region assignment graph which comprises a salient region and a non-salient region according to an original picture, and enabling the pixel assignment of a pixel point in the salient region to be higher than the pixel assignment of a pixel point in the non-salient region; constructing a convolution kernel according to the display scale of the display area; moving a convolution kernel on the target salient region assignment graph for multiple times, and after each movement, determining a convolution result of the convolution kernel and a region where the convolution kernel currently stays on the target salient region assignment graph, and taking the convolution result as a recommendation index of the region; and determining a target region in the target salient region assignment graph according to the recommendation index of each region, and extr