Objective To study the high-fidelity display problem of high dynamic images ( HDR) in the low dynamic range display equipment. Methods The image color appearance model ( iCAM) was used to design the reproduction technical framework of high dynamic images and the C++ language was applied to build a software reality system. An empirical input image was actually tested by the computer platform and the image processing algorithm focused on photopic degree. Results The results showed that the dynamic range expansion of display image was more than 10% , the color aberration was less than 1. 6 ΔE^*_ab,and the image details were strengthened,basically meeting the high-fidelity display requirement of high dynamic image. Conclusion The iCAM framework can be used to achieve the high-fidelity display of high dynamic images in common display devices and therefore has an important theoretical and technical value.