A method and system for providing, in accordance with a standard format, formatted information to an image-processor, especially software and/or components. The formatted information is related to defects of a chain of appliances including an image-capture appliance and/or an image-restitution appliance. The image-processor uses the formatted data to modify the quality of at least one image derived from or addressed to the chain of appliances. The formatted information includes data characterizing defects of the image-capture appliance, especially distortion characteristics, and/or data characterizing defects of the image-restitution appliance, especially distortion characteristics. The method fills in at least one field of the standard format with the formatted information. This field is designated by a field name and contains at least one field value.