High dynamic range image hallucination

A method of generating an image comprising:

• receiving an input image, wherein at least a first region of the input image includes a texture and a first illumination;
• receiving an indication of a second region in the input image, the second region including a second illumination and lacking the texture;
• applying the texture from the first region to the second region to generate an output image, wherein the second region substantially retains the second illumination;
• and
• outputting the output image.

A method of generating an image comprising:

• receiving an input image, the input image including a first region at a first illumination level and containing a texture at a first texture level;
• identifying a second region in the image, the second image at a second illumination level and including the texture at a second texture level, the second texture level being less than the first texture level and the second illumination level being different from the first illumination level;
• decomposing the input image into a high frequency texture component and a low frequency illumination component;
• hallucinating the high frequency texture component by modifying a region corresponding to the second region of the image by constrained texture synthesis;
• hallucinating the low frequency illumination component including estimating radiance values in a region corresponding to the second region of the image via interpolating the identified region from a linear combination of elliptical Gaussian kernels;
• combining the hallucinated high frequency texture component and the hallucinated low frequency illumination component to create an output image;
• and
• outputting the output image, the output image including a first region corresponding to the first region of the input image and a second region corresponding to the second region of the input image, the second region of the output image at the second illumination level and having the texture at a third texture level, the third texture level being greater than the second texture level.