The present disclosure provides an image processing method, a computing system, a device, and a readable storage medium. The image processing method includes: using an inverse tone mapping neural network to process a first image, the inverse tone mapping neural network is configured to expand a dynamic range of the first image and a color gamut range of the first image to obtain a second image that is expanded, the inverse tone mapping neural network includes a mapping network, the mapping network is used to realize the expansion, and the inverse tone mapping neural network further includes an attention network, an input of the mapping network and an input of the attention network are both the first image, the attention network is used to process image contents of the first image to generate correction coefficients, and the correction coefficients are used to correct parameters of the mapping network.