Method for dynamic range editing
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 computer-implemented method, comprising the steps of:
determining at least one first matrix from a plurality of matrix entries, wherein first matrix entries of the plurality of matrix entries are determined as a function of at least a tone mapping parameter of a respective corresponding area within a high dynamic range input image;
determining at least one second matrix from a plurality of second matrix entries, wherein each second matrix entry is determined as a function of the high dynamic range input image and of user input data;
determining a third matrix as a function of the first matrix and the second matrix; and
generating a tone-mapped image as a function of the high dynamic range input image and the third matrix.
2. The method of claim 1 , wherein tone mapping parameter comprises at least one of brightness, contrast, haloing strength, detail retention, color temperature, brilliance, and sharpness.
3. The computer-implemented method of claim 2 , wherein the plurality of matrix entries further include second matrix entries, wherein the second matrix entries are determined as a function of at least one other image parameter of a respective corresponding area with the high dynamic range input image.
4. The computer-implemented method of claim 3 , wherein the at least one other image parameter comprises at least one of noise reduction, color change, and unsharp mask sharpening.
5. The computer-implemented method of claim 2 , wherein the user input data includes user indication of a first area of the image for adjustment in generating the tone-mapped image.
6. The computer-implemented method of claim 5 , wherein the user input data includes coordinates for pixels of the first area of the image.
7. The computer-implemented method of claim 5 , wherein a second area outside of the first area of the image is unadjusted in generating the tone-mapped image.
8. A non-transitory computer-readable medium storing instructions, when executed by one or more processors of a capture device, cause the one or more processors to:
determine at least one first matrix from a plurality of matrix entries, wherein first matrix entries of the plurality of matrix entries is determined as a function of at least a tone mapping parameter of a respective corresponding area within a high dynamic range input image;
determine at least one second matrix from a plurality of second matrix entries, wherein each second matrix entry is determined as a function of the high dynamic range input image and of user input data;
determine a third matrix as a function of the first matrix and the second matrix;
generate a tone-mapped image as a function of the high dynamic range input image and the third matrix; and
display the tone-mapped image on a display screen.
9. The computer-readable medium of claim 8 , wherein tone mapping parameter comprises at least one of brightness, contrast, haloing strength, detail retention, color temperature, brilliance, and sharpness.
10. The computer-readable medium of claim 8 , wherein the plurality of matrix entries further include second matrix entries, wherein the second matrix entries are determined as a function of at least one other image parameter of a respective corresponding area with the high dynamic range input image.
11. The computer-readable medium of 10 , wherein the at least one other image parameter comprises at least one of noise reduction, color change, and unsharp mask sharpening.
12. The computer-readable medium of claim 8 , wherein the user input data includes user indication of a first area of the image for adjustment in generating the tone-mapped image.
13. The computer-readable medium of claim 12 , wherein the user input data includes coordinates for pixels of the first area of the image.
14. The computer-readable medium of claim 12 , wherein a second area outside of the first area of the image is unadjusted in generating the tone-mapped image.
15. A system to generate a high dynamic range image, the system comprising:
one or more processors; and
a memory coupled to the one or more processors, the memory configured to store instructions that upon execution by the one or more processors cause the one or more processors to:
determine at least one first matrix from a plurality of matrix entries, wherein first matrix entries of the plurality of matrix entries is determined as a function of at least a tone mapping parameter of a respective corresponding area within a high dynamic range input image;
determine at least one second matrix from a plurality of second matrix entries, wherein each second matrix entry is determined as a function of the high dynamic range input image and of user input data;
determine a third matrix as a function of the first matrix and the second matrix; and
generate a tone-mapped image as a function of the high dynamic range input image and the third matrix.
16. The system of claim 15 , wherein tone mapping parameter comprises at least one of brightness, contrast, haloing strength, detail retention, color temperature, brilliance, and sharpness.
17. The system of claim 15 , wherein the plurality of matrix entries further include second matrix entries, wherein the second matrix entries are determined as a function of at least one other image parameter of a respective corresponding area with the high dynamic range input image.
18. The system of claim 17 , wherein the at least one other image parameter comprises at least one of noise reduction, color change, and unsharp mask sharpening.
19. The system of claim 15 , wherein the user input data includes user indication of a first area of the image for adjustment in generating the tone-mapped image.
20. The system of claim 19 , wherein the user input data includes coordinates for pixels of the first area of the image.