The present invention relates to a method for avoiding discomfort and/or relieving motion sickness when using a display device (12) in a moving environment. According to the invention, the method comprises the steps:- detecting at least one movement component of the moving environment- generating data for intermediate images (36) indicating the movement component or at least one of the movement components- modifying a series (30) of images (28) showing content to be displayed by inserting the intermediate images (36) into the series, wherein the modified series (30) is divided into sequences (42) of these images (28) by the intermediate images (36) and- displaying the modified series (30) of images (28, 36) on an image display (14) of the display device (12), wherein the modified series (30) includes the intermediate images (36). The invention further relates to a corresponding image-processing device (16) and a corresponding system (10) comprising the image-processing device (16).
