The present invention relates to a method and system for gesture support system for controlling a cloud-based image processing application, comprising: - An extended touch screen device (10) on the client's side for receiving user input configurations for processing the medical image data - A DICOM Appliance (20) on a client's side with ⋅ a receiver (21), which is adapted for accessing or receiving the medical image data from a storage (S) and ⋅ with an uploader client (22), which is adapted for segregating PHI-data and non-confidential image data and wherein the uploader client (22) is further adapted for encrypting PHI-data and sending a data package, consisting of encrypted PHI-data and non-confidential image data from the uploader client (22) to a cloud server (100) - The cloud server (100) which is adapted for processing the medical image data, received from the uploader client (22), comprising: ⋅ an uploader service (12), which is adapted to receive the data package form the uploader client (22) and to decrypt the received data package ⋅ a gesture reception unit (11) which is adapted to receive user-specific gesture signals from the extended touch screen device (10) ⋅ a mapping unit (14) which is adapted to map the received user-specific gesture signals to standard gestures and to provide the standard gestures to the cloud server (100) for generating control instructions for the image processing application ⋅ A processing unit (15) for processing the received image data by applying the control instructions relating to the received user-specific gesture signalsLa présente invention concerne un procédé et un système pour un système d'assistance aux gestes pour commander une application de traitement d'image en nuage, comprenant :- un dispositif à écran tactile étendu (10) côté client pour recevoir des configurations d'entrée d'utilisateur pour traiter les données d'image médicale ;- un appareil DICOM (20) côté client pourvu d'un récepteur (21), qui est conçu