Besançon, LonniSemmo, AmirBiau, DavidFrachet, BrunoPineau, VirginieSariali, El HadiSoubeyrand, MarcTaouachi, RabahIsenberg, TobiasDragicevic, PierreBenes, Bedrich and Hauser, Helwig2020-05-222020-05-2220201467-8659https://doi.org/10.1111/cgf.13886https://diglib.eg.org:443/handle/10.1111/cgf13886We present the first empirical study on using colour manipulation and stylization to make surgery images/videos more palatable. While aversion to such material is natural, it limits many people's ability to satisfy their curiosity, educate themselves and make informed decisions. We selected a diverse set of image processing techniques to test them both on surgeons and lay people. While colour manipulation techniques and many artistic methods were found unusable by surgeons, edge‐preserving image smoothing yielded good results both for preserving information (as judged by surgeons) and reducing repulsiveness (as judged by lay people). We then conducted a second set of interview with surgeons to assess whether these methods could also be used on videos and derive good default parameters for information preservation. We provide extensive supplemental material at .image processingimage and video processingnon‐photorealistic renderingrenderinguser studiesinteractionComputing methodologies → NPR; Image processing; • Human‐centred computing → Empirical studies in HCI10.1111/cgf.13886462-483