FIGURE 6. Comparison of two tonemapping algorithms. 6.1 original metered exposure, .2 HDR image after tonemapping using dynamic range compression, 6.3 HDR image after tonemapping using a detail enhancement algorithm, 6.4 the difference between dynamic range compression tonemapped HDR image and metered exposure, 6.5 difference between detail enhancement tonemapped HDR image and metered exposure. In the two difference maps (6.4 and 6.5), dark regions show little difference, lighter regions show greater differences between two images.