In order to determine if four HMD offer characteristics that are sufficient for applications that require precise control of colors displayed, we use a method is inspired by two tests extensively used for screening of deficiencies in color vision: the Farnsworth Munsell D-15 and the Lanthony test, which are both based on the arrangement of fifteen color caps so as to reduce the color difference between two neighboring caps. After performing colorimetric characterization of the HMD, patches that match for the Farnsworth and Lanthony cap colors are created, and the color differences between two patches are measured in the CIE Lab space. We find out that, for some of the devices, differences in color may become very slight, and reach the perception threshold. It is deduced that these devices would fail to display the color characteristics of an image with a sufficient level of accuracy.

Colour discrimination is one of the most important means for object detection and recognition. Acquired or congenital colour blindness may become a major cause of troubles in everyday life tasks. Digital technologies already offer some methods to overcome this impairment. However, to be efficient, these methods have to be based on a careful matching with each user's colour vision. Although the traditional Ishihara and Farnsworth tests are relatively easy to use, computerized tests seem to simplify administration and recording of colour vision tests. This work presents a new computerized colour vision test, aiming to give access to subject's detection thresholds for colour in the whole gamut of a given display device, and the preliminary works for its validation. Subjects with normal colour vision and subjects with congenital anomalous trichromacy underwent this test, and first results indicate a fairly good sensibility.