Always stubbornly thought that, the elegant art techniques such as oil painting are difficult to master. The light recorded by photos is always fixed and cannot show a wide range of brightness levels. This regret is now being compensated by a widely used technology called HDR. HDR, or High Dynamic Range, refers to the rendering technique known as high dynamic range. The HDR photo technique merges the same image with different exposure values, generating pictures with different exposure value light domains according to needs.
The generated photos have richer light and dark details than single exposure value, thus achieving many artistic expressions of oil painting techniques.