APPARATUS AND METHOD FOR OPTIMIZING INVERSE TONE MAPPING ON BASIS OF SINGLE IMAGE, AND RECORDING MEDIUM FOR PERFORMING METHOD

摘要

The present invention relates to an apparatus and method for optimizing inverse tone mapping on the basis of a single image which are configured to be capable of reconstructing a high quality high dynamic range (HDR) image using a low dynamic range (LDR) image, and a recording medium for performing the method, wherein the method comprises the steps of: inputting an LDR image into an inverse tone mapping (ITM) operator; inputting a resulting value from the ITM operator to a tone mapping (TM) operator; comparing a resulting value from the TM operator with a threshold value for HDR luminance reading; and selecting, as an HDR image, a resulting value from the TM operator that is smaller than the threshold value.