1. A computer-implemented method for reconstructing a higher-dynamic-range image, the method comprising: obtaining a full resolution, lower dynamic range (FRLDR) representation of the image and a lower resolution, higher-dynamic-range (LRHDR) representation of the image, the LRHDR representation having a lower resolution and a higher dynamic range than the FRLDR representation; and in a data processor: processing at least the FRLDR representation to obtain a scaling image comprising information relating to high spatial frequency components of the FRLDR representation; upsampling the LRHDR representation to obtain an upsampled image; and combining the scaling image and the upsampled image to obtain a reconstructed higher-dynamic-range image.