Method for dynamic range editing
View Patent ↗A method of displaying a high dynamic range image, comprising receiving the high dynamic range image, calculating a first set of tone mapping parameters as a function of the high dynamic range image, sub-sampling the first set of tone mapping parameters at a first resolution to create a first sub-sampled parameter set, creating a first tone-mapped image by processing the high dynamic range image as a function of the first sub-sampled parameter set, and displaying the first tone-mapped image. A method of composting a plurality of versions of an image to create the high dynamic range image is also disclosed such that the compositing may be modified as a function of received user input.
1. A method of displaying a high dynamic range image, the method comprising:
receiving the high dynamic range image;
calculating a first set of tone mapping parameters as a function of the high dynamic range image;
sub-sampling the first set of tone mapping parameters at a first resolution to create a first sub-sampled parameter set;
creating a first tone-mapped image by processing the high dynamic range image as a function of the first sub-sampled parameter set; and
displaying the first tone-mapped image.
2. The method of claim 1 , further comprising the steps, after the display of the first tone-mapped image, of:
sub-sampling the first set of tone mapping parameters at a second resolution to create a second sub-sampled parameter set;
creating a second tone-mapped image by processing the high dynamic range image as a function of the second sub-sampled parameter set; and
displaying the second tone-mapped image.
3. The method of claim 1 , further comprising the step, prior to the sub-sampling step, of receiving a second set of tone mapping parameters from a user, and wherein the sub-sampling step comprises sub-sampling both the first and second sets of tone mapping parameters at the first resolution to create the first sub-sampled parameter set.
4. The method of claim 3 , where the second set of parameters is selected from the group comprising a region selection and brush stroke information.
5. The method of claim 3 , where the second set of parameters is selected from the group comprising image reference points and image reference regions.
6. The method of claim 3 , where the second set of parameters is selected from the group comprising color temperature adjustments and local brightness change information.
7. The method of claim 1 , where the first set of parameters comprises a matrix of convolution radii.
8. The method of claim 1 , where the first set of parameters comprises an adaptation light intensity matrix.
9. The method of claim 1 , where the first set of parameters corresponds to a sub-set of the high dynamic range image.