Abstract
We examined relation of the bit depth and the gamma characteristic in image display to image impressions by subjective assessment. Our assessment was conducted using a 10bits display in a non-darkroom. As the result of this assessment, we confirmed that the bit depth and the gamma characteristic have relation to image impressions. In addition, it is suggested that appropriate gamma characteristics can increase effects of the 10 bits display in the non-darkroom. However, it is also suggested that the10 bits display decreases image impressions in some conditions.